infeccioso في 30 ثانية

  • Infeccioso means infectious, likely to spread disease.
  • It describes germs, viruses, and conditions that can be transmitted.
  • Remember to match its gender and number with the noun it describes.
  • Often used in medical contexts and news about health.
Meaning
The word 'infeccioso' describes something that has the potential to spread or be transmitted, usually in the context of diseases or germs. It refers to the characteristic of being contagious or infectious, meaning it can easily pass from one person, animal, or object to another, often through environmental contact or direct transmission.
Usage Context
This adjective is frequently used in medical and health-related discussions. You'll hear it when talking about illnesses, viruses, bacteria, or any agent that can cause infection. For example, a particular strain of flu might be described as 'altamente infeccioso' (highly infectious), or a surface could be considered 'infeccioso' if it harbors harmful microorganisms. It's also used metaphorically, though less commonly, to describe something that spreads rapidly, like a rumor or a trend, implying a contagious quality.

A gripe espanhola foi uma doença extremamente infecciosa.

The Spanish Flu was an extremely infectious disease.

Lavar as mãos frequentemente é essencial para prevenir a disseminação de agentes infecciosos.

Washing hands frequently is essential to prevent the spread of infectious agents.
Examples of Use
- A bacteria can be 'infeccioso' if it causes disease.
- A contaminated water source can be 'infeccioso'.
- Certain medical equipment needs to be sterilized because it can become 'infeccioso'.
- The common cold is a highly 'infeccioso' illness.
- The doctor explained that the patient's condition was not 'infeccioso' to others.
Basic Sentence Structure
'Infeccioso' is an adjective, so it typically follows a noun it describes or appears after a linking verb like 'ser' (to be) or 'estar' (to be). Remember that adjectives in Portuguese must agree in gender and number with the noun they modify. The masculine singular form is 'infeccioso', the feminine singular is 'infecciosa', the masculine plural is 'infecciosos', and the feminine plural is 'infecciosas'.

O vírus é altamente infeccioso.

The virus is highly infectious.
Examples with Agreement
- Masculine Singular: O médico alertou sobre o caráter infeccioso da bactéria. (The doctor warned about the infectious nature of the bacteria.)
- Feminine Singular: A doença transmitida pela água era muito infecciosa. (The disease transmitted by the water was very infectious.)
- Masculine Plural: Os sintomas eram de agentes infecciosos resistentes. (The symptoms were of resistant infectious agents.)
- Feminine Plural: As amostras apresentavam cepas infecciosas perigosas. (The samples presented dangerous infectious strains.)

Este ambiente é considerado infeccioso.

This environment is considered infectious.
Using with Modifiers
You can enhance the meaning by using adverbs like 'muito' (very), 'altamente' (highly), 'pouco' (little), or 'extremamente' (extremely) before 'infeccioso' or 'infecciosa'.

A doença era pouco infecciosa, mas exigia cuidados.

The disease was not very infectious, but it required care.
Medical Settings
The most common place you'll encounter 'infeccioso' is in healthcare environments. Doctors, nurses, epidemiologists, and public health officials use it daily. Discussions about outbreaks, patient care, hygiene protocols, and the transmission of diseases all revolve around this term. For instance, a doctor might tell a patient, 'Seu quadro não é infeccioso para sua família' (Your condition is not infectious to your family), or a hospital might have signs warning about 'áreas infecciosas' (infectious areas).

O hospital implementou novas medidas para combater agentes infecciosos.

The hospital implemented new measures to combat infectious agents.
News and Media
During health crises, such as pandemics or widespread epidemics, the term 'infeccioso' becomes prevalent in news reports, scientific articles, and public service announcements. You'll read headlines like 'Novo vírus infeccioso surge na Ásia' (New infectious virus emerges in Asia) or hear journalists explaining how a particular disease is spread. Educational programs and documentaries about biology and health also frequently use this word.

A mídia noticiou a descoberta de uma cepa bacteriana infecciosa.

The media reported the discovery of an infectious bacterial strain.
Scientific and Academic Contexts
In research papers, textbooks, and academic lectures on microbiology, virology, and epidemiology, 'infeccioso' is a fundamental term. Researchers might be studying the 'potencial infeccioso' (infectious potential) of a new pathogen or developing treatments for 'doenças infecciosas' (infectious diseases).

O estudo investigou o comportamento infeccioso do microrganismo.

The study investigated the infectious behavior of the microorganism.
Gender and Number Agreement
The most frequent error for learners is not correctly matching the gender and number of 'infeccioso' with the noun it modifies. Portuguese adjectives must agree. Forgetting this can lead to grammatically incorrect sentences. For example, saying 'a vírus infecciosa' instead of 'o vírus infeccioso' or 'as bactérias infeccioso' instead of 'as bactérias infecciosas'.

Mistake: A doença é infeccioso.

Correct: A doença é infecciosa.

The disease is infectious.
Confusing with 'Contagioso'
While 'infeccioso' and 'contagioso' are closely related and often used interchangeably in casual speech, they have distinct nuances. 'Infeccioso' describes the inherent quality of being capable of causing infection. 'Contagioso' specifically refers to the mode of transmission, usually from person to person. Using 'infeccioso' when you specifically mean easily spread between individuals might not be precise, although it's often understood. Conversely, calling something 'contagioso' when it's merely capable of causing infection but doesn't spread easily person-to-person might also be inaccurate.

Mistake: O vírus é contagioso, mas não infeccioso.

Correct: O vírus é infeccioso e se espalha facilmente entre pessoas, sendo portanto também contagioso.

The virus is infectious and spreads easily between people, therefore also being contagious.
Overuse or Misapplication
Sometimes, learners might use 'infeccioso' to describe things that are not biological or health-related, similar to how English speakers might use 'infectious' metaphorically. While this can happen in Portuguese, it's less common and can sound awkward. Stick to the primary meaning related to disease and pathogens unless you are very confident in the metaphorical usage.

Mistake: Essa ideia é muito infecciosa.

Better: Essa ideia se espalha rapidamente. (This idea spreads quickly.)

This idea is very infectious.
Contagioso
'Contagioso' (contagious) is the closest synonym and often used interchangeably in everyday language. However, 'infeccioso' is broader, referring to the ability to cause infection, while 'contagioso' specifically implies transmission from one host to another, usually person-to-person. A disease can be 'infecciosa' without being highly 'contagiosa', or vice-versa.
Example Comparison:
- 'O vírus é infeccioso.' (The virus is infectious - it can cause disease.)
- 'A gripe é muito contagiosa.' (The flu is very contagious - it spreads easily from person to person.)
Patogênico
'Patogênico' (pathogenic) is a more scientific term. It means capable of causing disease. All 'infeccioso' agents are 'patogênicos', but not all 'patogênicos' agents are necessarily 'infecciosos' in the sense of being transmissible through the environment or person-to-person. 'Patogênico' focuses purely on the disease-causing ability.
Example Comparison:
- 'Essa bactéria é infecciosa e pode se espalhar rapidamente.' (This bacteria is infectious and can spread quickly.)
- 'O micoplasma é patogênico, mas sua transmissão é mais limitada.' (Mycoplasma is pathogenic, but its transmission is more limited.)
Transmissível
'Transmissível' (transmissible) is a general term meaning capable of being transmitted. It can apply to diseases, but also to information or traits. When used for diseases, it overlaps significantly with 'infeccioso' and 'contagioso', but it's less specific about the nature of the agent or the method of spread. 'Infeccioso' focuses on the biological agent's property, while 'transmissível' focuses on the act of transmission.
Example Comparison:
- 'A doença é infecciosa e requer isolamento.' (The disease is infectious and requires isolation.)
- 'A informação sobre o surto foi rapidamente transmissível.' (Information about the outbreak was quickly transmissible.)
Pestilento
'Pestilento' (pestilential) is a more archaic or literary term, often used to describe diseases that are widespread, deadly, and cause great suffering, like plagues. It carries a stronger connotation of devastation and epidemic scale than 'infeccioso'.
Example Comparison:
- 'A peste bubônica foi uma doença infecciosa que devastou populações.' (The bubonic plague was an infectious disease that devastated populations.)
- 'As epidemias antigas eram frequentemente descritas como pestilentas.' (Ancient epidemics were often described as pestilential.)

How Formal Is It?

حقيقة ممتعة

The concept of 'infection' and its transmission has been recognized for centuries, even before the discovery of microorganisms. Early theories attributed diseases to 'bad air' (miasma) or divine punishment. The term 'infeccioso' reflects this ancient understanding of something external corrupting the body.

دليل النطق

UK /ˌɪn.fɛkˈʃuː.zu/
US /ˌɪn.fɛkˈʃuː.zu/
in-fe-CCIO-so
يتقافى مع
precioso nervoso curioso generoso laborioso temerário ambicioso ambicioso
أخطاء شائعة
  • Pronouncing 'ci' as 'si' instead of 'sh'.
  • Incorrectly stressing the wrong syllable.
  • Making the final 'o' sound too short or indistinct.

مستوى الصعوبة

القراءة 2/5

CEFR A2 level. The word itself is straightforward, but understanding its nuances and correct grammatical agreement requires practice. Context is key.

الكتابة 2/5

Requires attention to gender and number agreement, which can be challenging for learners.

التحدث 2/5

Pronunciation is manageable, but correct usage in sentences needs practice.

الاستماع 2/5

Recognizable once the pronunciation is familiar, especially in health-related contexts.

ماذا تتعلّم بعد ذلك

المتطلبات الأساسية

doença vírus bactéria saúde médico ser estar

تعلّم لاحقاً

contagioso patógeno epidemia sintoma tratamento

متقدم

virulência imunidade profilaxia antibiótico antiviral

قواعد يجب معرفتها

Adjective Agreement (Gender and Number)

O vírus é infeccioso. A bactéria é infecciosa. Os vírus são infecciosos. As bactérias são infecciosas.

Use of 'Ser' vs. 'Estar' with Adjectives

'Ser' is used for inherent qualities or permanent states. 'Estar' is used for temporary conditions. For 'infeccioso', 'ser' is more common when describing the nature of a disease/agent, but 'estar' can be used for a temporary state of being infectious. e.g., 'Este vírus é infeccioso.' (This virus is infectious - its nature.) vs. 'O paciente está infeccioso hoje.' (The patient is infectious today - a temporary state.)

Adverb Placement

O vírus é *altamente* infeccioso. (The virus is *highly* infectious.)

Negation with 'Não'

A água não está infecciosa. (The water is not infectious.)

Using 'Que' to Introduce Subordinate Clauses

O médico disse *que* a doença era infecciosa. (The doctor said *that* the disease was infectious.)

أمثلة حسب المستوى

1

O resfriado é infeccioso.

The cold is infectious.

Simple sentence with adjective following the noun.

2

A água não está infecciosa.

The water is not infectious.

Using 'não' to negate the adjective.

3

Este lugar é infeccioso?

Is this place infectious?

Question form with adjective after 'é'.

4

A tosse é infecciosa.

The cough is infectious.

Simple statement, common context.

5

Não toque, é infeccioso.

Don't touch, it's infectious.

Command followed by explanation.

6

O vírus é infeccioso.

The virus is infectious.

Subject + 'ser' + adjective.

7

Ela pegou algo infeccioso.

She caught something infectious.

Verb 'pegar' + object + adjective.

8

É um germe infeccioso.

It's an infectious germ.

Indefinite article + noun + adjective.

1

O médico disse que a gripe é infecciosa.

The doctor said that the flu is infectious.

Using 'que' to introduce a subordinate clause.

2

As mãos devem estar limpas para evitar algo infeccioso.

Hands must be clean to avoid something infectious.

Modal verb 'devem' + infinitive + purpose clause.

3

Esta comida parece infecciosa, melhor não comer.

This food looks infectious, better not to eat it.

Using 'parecer' (to seem) and 'melhor não' (better not).

4

Tenho medo de contrair algo infeccioso.

I am afraid of catching something infectious.

Expressing fear with 'tenho medo de' + infinitive.

5

O ambiente da sala de espera era potencialmente infeccioso.

The waiting room environment was potentially infectious.

Using 'potencialmente' (potentially) with the adjective.

6

Devemos isolar pacientes com doenças infecciosas.

We must isolate patients with infectious diseases.

Plural form 'infecciosas' modifying 'doenças'.

7

O ar estava pesado e parecia infeccioso.

The air was heavy and seemed infectious.

Describing an intangible element (air) as infectious.

8

Por favor, use máscara, o vírus é infeccioso.

Please wear a mask, the virus is infectious.

Direct instruction and reason.

1

A propagação desse novo patógeno infeccioso é preocupante.

The spread of this new infectious pathogen is worrying.

Using 'patógeno' (pathogen) and 'propagação' (spread).

2

É crucial manter a higiene para evitar a transmissão de agentes infecciosos.

It is crucial to maintain hygiene to prevent the transmission of infectious agents.

Using 'crucial', 'transmissão' (transmission), and 'agentes' (agents).

3

O estudo investigou o potencial infeccioso de diversas cepas bacterianas.

The study investigated the infectious potential of various bacterial strains.

Using 'potencial infeccioso' and 'cepas bacterianas' (bacterial strains).

4

A contaminação da água tornou a fonte infecciosa para a comunidade.

The water contamination made the source infectious for the community.

Using 'contaminação' (contamination) and 'fonte' (source).

5

Medidas rigorosas foram implementadas para conter o surto infeccioso.

Strict measures were implemented to contain the infectious outbreak.

Using 'medidas rigorosas' (strict measures) and 'surto' (outbreak).

6

O período de incubação indica o quão infeccioso o vírus pode ser.

The incubation period indicates how infectious the virus can be.

Using 'período de incubação' (incubation period) and 'quão' (how).

7

A exposição a superfícies contaminadas pode resultar em contato infeccioso.

Exposure to contaminated surfaces can result in infectious contact.

Using 'exposição' (exposure) and 'superfícies contaminadas' (contaminated surfaces).

8

A resistência antimicrobiana torna certas infecções mais difíceis de tratar e mais infecciosas.

Antimicrobial resistance makes certain infections harder to treat and more infectious.

Using 'resistência antimicrobiana' (antimicrobial resistance).

1

Epidemiologistas monitoram a virulência e o caráter infeccioso de novas cepas virais.

Epidemiologists monitor the virulence and infectious nature of new viral strains.

Using 'epidemiologistas', 'virulência', and 'cepas virais'.

2

A rápida disseminação de um agente infeccioso pode sobrecarregar os sistemas de saúde.

The rapid spread of an infectious agent can overload healthcare systems.

Using 'disseminação' (spread) and 'sobrecarregar' (overload).

3

É fundamental entender os mecanismos pelos quais um microrganismo se torna infeccioso.

It is fundamental to understand the mechanisms by which a microorganism becomes infectious.

Using 'mecanismos' (mechanisms) and 'pelos quais' (by which).

4

A pesquisa busca desenvolver vacinas que neutralizem o potencial infeccioso do vírus.

Research seeks to develop vaccines that neutralize the virus's infectious potential.

Using 'neutralizem' (neutralize) and 'potencial infeccioso'.

5

O isolamento social é uma medida de contenção para patógenos com alto índice infeccioso.

Social distancing is a containment measure for pathogens with a high infectious rate.

Using 'isolamento social' (social distancing) and 'alto índice infeccioso'.

6

A natureza infecciosa da doença exigiu uma resposta global coordenada.

The infectious nature of the disease required a coordinated global response.

Using abstract noun 'natureza infecciosa' and 'resposta global coordenada'.

7

O ciclo de vida do parasita o torna particularmente infeccioso em certas fases.

The parasite's life cycle makes it particularly infectious in certain stages.

Using 'ciclo de vida' (life cycle) and 'particularmente'.

8

A falta de saneamento básico contribui para a persistência de ambientes infecciosos.

The lack of basic sanitation contributes to the persistence of infectious environments.

Using 'saneamento básico' (basic sanitation) and 'persistência' (persistence).

1

A virulência de um agente infeccioso está intrinsecamente ligada à sua capacidade de evasão imunológica.

The virulence of an infectious agent is intrinsically linked to its ability to evade the immune system.

Using 'virulência', 'intrinsecamente ligada', and 'evasão imunológica'.

2

A transmissão horizontal de patógenos infecciosos em ambientes hospitalares é um desafio constante.

Horizontal transmission of infectious pathogens in hospital settings is a constant challenge.

Using 'transmissão horizontal', 'ambientes hospitalares', and 'desafio constante'.

3

O estudo aprofundou-se nos correlatos moleculares que determinam o tropismo infeccioso de um vírus.

The study delved into the molecular correlates that determine a virus's infectious tropism.

Using 'aprofundou-se', 'correlatos moleculares', 'tropismo infeccioso'.

4

A profilaxia pré-exposição visa mitigar o risco de contrair um agente infeccioso.

Pre-exposure prophylaxis aims to mitigate the risk of contracting an infectious agent.

Using 'profilaxia pré-exposição', 'mitigar', and 'risco'.

5

A emergência de agentes infecciosos multirresistentes representa uma ameaça sem precedentes à saúde pública global.

The emergence of multidrug-resistant infectious agents represents an unprecedented threat to global public health.

Using 'emergência', 'multirresistentes', 'ameaça sem precedentes'.

6

A compreensão da ecologia de reservatórios animais é crucial para antecipar surtos infecciosos zoonóticos.

Understanding the ecology of animal reservoirs is crucial for anticipating zoonotic infectious outbreaks.

Using 'ecologia de reservatórios animais', 'antecipar', 'zoonóticos'.

7

A patogênese de infecções virais é marcada pela complexa interação entre o vírus e o sistema imune do hospedeiro, determinando seu potencial infeccioso.

The pathogenesis of viral infections is marked by the complex interaction between the virus and the host's immune system, determining its infectious potential.

Using 'patogênese', 'complexa interação', 'hospedeiro'.

8

O desenvolvimento de novas estratégias terapêuticas é imperativo para combater a crescente morbidade associada a agentes infecciosos emergentes.

The development of new therapeutic strategies is imperative to combat the growing morbidity associated with emerging infectious agents.

Using 'estratégias terapêuticas', 'imperativo', 'morbidade'.

1

A epidemiologia molecular tem desvendado as intrincadas vias de transmissão e o espectro infeccioso de patógenos emergentes.

Molecular epidemiology has unveiled the intricate transmission pathways and the infectious spectrum of emerging pathogens.

Using 'epidemiologia molecular', 'desvendado', 'intrincadas vias', 'espectro infeccioso'.

2

A plasticidade genômica de certos microrganismos confere-lhes uma notável capacidade de adaptação e um perfil infeccioso imprevisível.

The genomic plasticity of certain microorganisms grants them a remarkable adaptability and an unpredictable infectious profile.

Using 'plasticidade genômica', 'confere-lhes', 'notável capacidade', 'perfil infeccioso imprevisível'.

3

A compreensão das interações quóricas e dos mecanismos de quorum sensing é vital para modular a virulência e o caráter infeccioso de biofilmes bacterianos.

Understanding quorum sensing interactions and mechanisms is vital for modulating the virulence and infectious nature of bacterial biofilms.

Using 'interações quóricas', 'quorum sensing', 'modular', 'biofilmes bacterianos'.

4

A globalização e as mudanças climáticas exacerbam a emergência de doenças infecciosas com potencial pandêmico.

Globalization and climate change exacerbate the emergence of infectious diseases with pandemic potential.

Using 'globalização', 'mudanças climáticas', 'exacerbam', 'potencial pandêmico'.

5

A evasão do sistema imune inato e adaptativo por patógenos é um fator determinante na manifestação de quadros infecciosos graves.

The evasion of the innate and adaptive immune system by pathogens is a determining factor in the manifestation of severe infectious conditions.

Using 'imune inato e adaptativo', 'manifestação', 'quadros infecciosos graves'.

6

A engenharia genética oferece novas perspectivas para a criação de vetores virais atenuados com reduzido potencial infeccioso.

Genetic engineering offers new perspectives for creating attenuated viral vectors with reduced infectious potential.

Using 'engenharia genética', 'perspectivas', 'vetores virais atenuados'.

7

A persistência de reservatórios animais e a suscetibilidade humana criam um cenário propício para a reemergência de doenças infecciosas negligenciadas.

The persistence of animal reservoirs and human susceptibility create a conducive scenario for the reemergence of neglected infectious diseases.

Using 'suscetibilidade humana', 'cenário propício', 'negligenciadas'.

8

A compreensão da dinâmica de transmissão de agentes infecciosos em ecossistemas complexos é essencial para a bio-vigilância.

Understanding the transmission dynamics of infectious agents in complex ecosystems is essential for bio-surveillance.

Using 'dinâmica de transmissão', 'ecossistemas complexos', 'bio-vigilância'.

تلازمات شائعة

agente infeccioso
doença infecciosa
potencial infeccioso
caráter infeccioso
altamente infeccioso
pouco infeccioso
meio infeccioso
transmissão infecciosa
ambiente infeccioso
resistente infeccioso

العبارات الشائعة

É infeccioso?

— Asking if something has the potential to spread or cause illness.

O médico perguntou: 'Essa condição é infecciosa?'

Não é infeccioso.

— Stating that something does not have the ability to spread or cause illness.

O paciente foi informado que sua doença não é infecciosa.

É muito infeccioso.

— Emphasizing that something spreads very easily or is highly likely to cause illness.

A enfermeira alertou que o vírus é muito infeccioso.

Potencialmente infeccioso

— Suggesting that something might have the ability to spread or cause illness, but it's not certain.

A água daquele rio é potencialmente infecciosa.

Agente infeccioso

— Referring to a microorganism or substance that causes infection.

Precisamos identificar o agente infeccioso responsável pelo surto.

Doença infecciosa

— A disease that can be transmitted from one person or organism to another.

A varíola é uma doença infecciosa erradicada.

Período infeccioso

— The time during which an infected person or animal can transmit an infection to others.

O médico explicou o período infeccioso da doença.

Medidas infecciosas

— Actions or precautions taken to prevent the spread of infection.

O hospital implementou novas medidas infecciosas.

Controle infeccioso

— The process of managing and limiting the spread of infections.

O controle infeccioso é fundamental em hospitais.

Um ambiente infeccioso

— A place or surrounding where infectious agents are present and can easily spread.

A falta de higiene criou um ambiente infeccioso.

يُخلط عادةً مع

infeccioso vs contagioso

While similar, 'infeccioso' refers to the ability to cause infection, whereas 'contagioso' specifically means easily spread from person to person. A disease can be infectious without being highly contagious, and vice-versa. However, they are often used interchangeably.

infeccioso vs patogênico

'Patogênico' is a more scientific term meaning disease-causing. All infectious agents are pathogenic, but 'infeccioso' also implies transmissibility, often environmentally or through contact.

infeccioso vs infecção

'Infecção' is the noun form, meaning the process of infecting or the state of being infected. 'Infeccioso' is the adjective describing something that causes or has the potential to cause infection.

سهل الخلط

infeccioso vs contagioso

Both words relate to the spread of disease and are often used in similar contexts.

'Infeccioso' describes the inherent property of being able to cause an infection. 'Contagioso' specifically refers to the ease with which it spreads from one individual to another, usually through direct or indirect contact. For example, a virus might be infectious (capable of infecting) but not very contagious if it requires a specific vector to spread.

O vírus da raiva é infeccioso e mortal, mas não é altamente contagioso entre humanos, pois requer uma mordida para ser transmitido. (The rabies virus is infectious and deadly, but not highly contagious among humans, as it requires a bite to be transmitted.)

infeccioso vs patogênico

Both refer to disease-causing capabilities.

'Patogênico' focuses solely on the ability of an organism or substance to cause disease. 'Infeccioso' implies not only the ability to cause disease but also the potential for transmission or spread, often through environmental means or contact. A pathogen might be infectious under specific conditions.

A bactéria E. coli pode ser patogênica, mas algumas cepas são mais infecciosas do que outras, dependendo da forma de contaminação. (E. coli bacteria can be pathogenic, but some strains are more infectious than others, depending on the mode of contamination.)

infeccioso vs transmissível

Both words describe the ability of something to be passed on.

'Transmissível' is a broader term meaning 'able to be transmitted', which can apply to diseases, information, or even traits. 'Infeccioso' is more specific to the biological context of disease transmission, highlighting the agent's ability to cause infection. A disease can be transmissible through various means, but 'infeccioso' emphasizes the infectious nature of the agent itself.

A febre amarela é uma doença transmissível pela picada de mosquito, e seu agente causador é infeccioso. (Yellow fever is a disease transmissible by mosquito bite, and its causative agent is infectious.)

infeccioso vs infecção (noun)

They are the adjective and noun forms of the same concept.

'Infeccioso' is an adjective that describes something that *causes* or is *likely to cause* an infection. 'Infecção' is the noun that refers to the *process* of infecting or the *state* of being infected by a pathogen. You can say 'o agente é infeccioso' (the agent is infectious) and 'o agente causa uma infecção' (the agent causes an infection).

O médico diagnosticou uma infecção bacteriana, e o antibiótico foi prescrito para combater o agente infeccioso. (The doctor diagnosed a bacterial infection, and the antibiotic was prescribed to combat the infectious agent.)

infeccioso vs virulento

Both relate to the severity or danger of a disease.

'Virulento' describes the degree of pathogenicity or the severity with which a pathogen can cause disease. 'Infeccioso' describes the ability to spread or be transmitted. A disease can be very infectious but not very virulent, or vice versa. For example, a mild cold is highly infectious but not virulent, while some rare diseases might be virulent but not easily infectious.

O vírus é altamente infeccioso, mas a cepa atual é menos virulenta do que as anteriores. (The virus is highly infectious, but the current strain is less virulent than previous ones.)

أنماط الجُمل

A1

Noun + é + infeccioso/a.

O resfriado é infeccioso.

A1

Isso + é + infeccioso/a.

Isso é infeccioso.

A2

O/A + Noun + é + (adverb) + infeccioso/a.

A gripe é muito infecciosa.

A2

Tenho medo de + infinitive + algo infeccioso.

Tenho medo de pegar algo infeccioso.

B1

O/A + Noun + é + infeccioso/a + e...

O vírus é infeccioso e se espalha rápido.

B1

A + Noun + é + (adverb) + infecciosa.

A água estava potencialmente infecciosa.

B2

É fundamental + infinitive + para evitar + agente infeccioso.

É fundamental ter higiene para evitar agentes infecciosos.

B2

O/A + Noun + tem + um caráter/potencial + infeccioso.

O estudo avaliou o potencial infeccioso do novo patógeno.

عائلة الكلمة

الأسماء

infecção
infeção

الأفعال

infectar
infeccionar

الصفات

infeccioso
infecciosa
infecciosos
infecciosas

مرتبط

contágio
contagioso
patógeno
patogenicidade
epidemia

كيفية الاستخدام

frequency

Common, especially in health-related contexts.

أخطاء شائعة
  • Forgetting gender/number agreement. A bactéria é infecciosa.

    The noun 'bactéria' is feminine singular, so the adjective must also be feminine singular ('infecciosa'). Saying 'a bactéria é infeccioso' is incorrect.

  • Using 'infeccioso' for non-medical metaphors. Essa ideia se espalha rapidamente.

    While 'infectious' can be metaphorical in English, 'infeccioso' is primarily used for biological contexts. Describing an idea as 'infecciosa' is unusual and might sound strange to native speakers. A more natural way to express rapid spread is 'se espalha rapidamente' (spreads quickly).

  • Confusing 'infeccioso' with 'contagioso' in a precise context. O vírus é infeccioso, mas não muito contagioso.

    'Infeccioso' means it can cause infection. 'Contagioso' means it spreads easily from person to person. A virus can be infectious (capable of causing illness) but not necessarily contagious if it requires a specific vector or condition to spread.

  • Incorrect pronunciation (stress or 'ci' sound). in-fe-CCIO-so

    The stress is on the third syllable. The 'ci' sound is like 'sh' in English, not 's'. Practicing the pronunciation is key.

  • Using 'infecção' (noun) instead of 'infeccioso' (adjective). A doença é infecciosa.

    'Infeccioso' is an adjective describing something. 'Infecção' is the noun referring to the state of being infected. You wouldn't say 'a doença é infecção'; you'd say 'a doença é infecciosa' or 'a doença causa uma infecção'.

نصائح

Master Adjective Agreement

Always ensure 'infeccioso' matches the gender and number of the noun it modifies. This is fundamental for correct Portuguese grammar. Practice with examples like 'o vírus infeccioso' and 'a bactéria infecciosa'.

Distinguish from 'Contagioso'

While related, 'infeccioso' refers to the capability to cause infection, whereas 'contagioso' implies ease of spread between individuals. Understanding this nuance will improve your precision in medical and health discussions.

Stress and 'CI' Sound

Remember the stress falls on the third syllable ('cio'). The 'ci' in Portuguese often sounds like 'sh' in English. Practice saying 'in-fe-CCIO-so' to get the pronunciation right.

Visual Associations

Create vivid mental images. Imagine a tiny, angry germ with grasping hands, or a red warning sign on a surface. Linking the word to strong visuals can aid recall.

Sentence Building

Actively create your own sentences using 'infeccioso' and its variations. Describe common illnesses, potential hazards, or medical conditions. The more you practice, the more natural it will become.

Cultural Relevance

Recognize that in Portuguese-speaking cultures, health and community well-being are important. Discussions about infectious diseases often reflect a collective sense of responsibility for prevention.

Regular Review

Periodically revisit the meaning, usage, and grammatical rules of 'infeccioso'. Consistent review, especially through exercises, will solidify your understanding and retention.

Active Listening

When watching Portuguese-language media or listening to native speakers, pay attention to how and when 'infeccioso' is used. Note the surrounding vocabulary and the context to deepen your comprehension.

Explore Related Terms

Learn synonyms like 'contagioso' and 'patogênico'. Understanding the subtle differences will allow you to use the most appropriate word for any given situation.

احفظها

وسيلة تذكّر

Imagine a tiny, angry 'infecção' (infection) wearing a tiny 'escudo' (shield) that it uses to 'infect' you. The 'escudo' sounds a bit like 'ioso', helping you remember 'infeccioso'.

ربط بصري

Picture a bright red, angry-looking virus with little arms reaching out to grab onto healthy cells. The redness and grabbing motion can symbolize its infectious nature.

Word Web

Disease Virus Bacteria Germ Contagious Pathogen Illness Spread Transmission Health Medical Epidemic Hygiene Infection Microorganism

تحدٍّ

Try to describe three common illnesses you know using the word 'infeccioso' or its forms. For example, 'A gripe é infecciosa.' (The flu is infectious.)

أصل الكلمة

The word 'infeccioso' comes from the Latin word 'infectiosus', which means 'contagious' or 'pestilential'. It is derived from the verb 'inficere', meaning 'to corrupt, to spoil, to poison, to infect'. The prefix 'in-' means 'into', and 'facere' means 'to make'. So, literally, it means 'to make into' or 'to put into' something, implying the introduction of a corrupting element.

المعنى الأصلي: To corrupt, to spoil, to poison, to infect.

Indo-European -> Italic -> Latin -> Romance -> Portuguese

السياق الثقافي

When discussing infectious diseases, it's important to be sensitive to individuals who may have experienced severe illness or loss due to such diseases. Avoid stigmatizing specific groups or diseases.

In English, 'infectious' carries a very similar meaning and is used in the same contexts. The concept is universal, but the grammatical agreement in Portuguese is a key difference for learners.

The Spanish Flu pandemic (1918-1920) was a historical event that highlighted the devastating power of infectious diseases. The discovery of penicillin by Alexander Fleming revolutionized the treatment of bacterial infections, leading to a decrease in mortality from previously infectious diseases. World Health Organization (WHO) campaigns constantly address the control and prevention of infectious diseases globally.

تدرّب في الحياة الواقعية

سياقات واقعية

Discussing common illnesses like colds, flu, or stomach bugs.

  • O resfriado é infeccioso.
  • Tenho medo que seja infeccioso.
  • Não é infeccioso, pode ficar tranquilo.

Medical advice and warnings.

  • O paciente tem uma condição infecciosa.
  • Medidas para evitar o contágio infeccioso.
  • Lave as mãos, o vírus é infeccioso.

News reports about outbreaks or health crises.

  • Novo surto infeccioso surge.
  • A doença infecciosa se espalha rapidamente.
  • O potencial infeccioso é alto.

Scientific or academic discussions about pathogens.

  • Estudo sobre o agente infeccioso.
  • O caráter infeccioso da bactéria.
  • Mecanismos de propagação infecciosa.

Warning about potentially contaminated items or places.

  • Essa água pode estar infecciosa.
  • O local parece infeccioso.
  • Evite tocar, pode ser infeccioso.

بدايات محادثة

"Você já teve uma doença que era muito infecciosa?"

"O que você acha que devemos fazer para prevenir doenças infecciosas?"

"Como os médicos determinam se uma doença é infecciosa?"

"Quais são os sinais de que algo pode ser infeccioso?"

"Você acha que a pandemia nos tornou mais conscientes sobre doenças infecciosas?"

مواضيع للكتابة اليومية

Descreva uma vez em que você ou alguém que você conhece teve uma doença infecciosa. Como foi a experiência?

Como você acha que a tecnologia pode ajudar no controle de doenças infecciosas no futuro?

Pense em um local público que você frequenta. Quais medidas poderiam ser tomadas para reduzir o risco de um ambiente infeccioso?

Escreva sobre a importância da higiene pessoal na prevenção de doenças infecciosas.

Se você fosse um cientista pesquisando uma nova doença infecciosa, qual seria seu primeiro passo?

الأسئلة الشائعة

10 أسئلة

While often used interchangeably, 'infeccioso' describes the inherent ability of an agent or substance to cause infection. 'Contagioso' specifically refers to how easily a disease spreads from one person or organism to another, typically through direct or indirect contact. A disease can be infectious without being highly contagious, and vice versa. For example, a disease might be infectious if you ingest contaminated food, but not contagious if it doesn't spread person-to-person easily.

This depends on the gender of the noun you are describing. If the noun is masculine (e.g., 'o vírus', 'o agente'), you use 'infeccioso'. If the noun is feminine (e.g., 'a bactéria', 'a doença'), you use 'infecciosa'. For plural nouns, it becomes 'infecciosos' (masculine plural) or 'infecciosas' (feminine plural).

While 'infectious' can be used metaphorically in English (e.g., 'an infectious laugh'), using 'infeccioso' metaphorically in Portuguese is less common and can sound awkward or overly strong. It's best to stick to its primary meaning related to diseases and pathogens unless you are very confident in the figurative usage, which is rare.

Yes, 'infeccioso' is a common and important word, especially in contexts related to health, medicine, and public safety. You will encounter it frequently in news reports, medical discussions, and everyday conversations about illness.

If a surface is described as 'infeccioso', it means that it is contaminated with microorganisms (like bacteria or viruses) that can cause infection if you touch it and then touch your mouth, nose, or eyes. It implies that the surface itself harbors infectious agents.

Yes, similar words include 'contagioso' (contagious), 'patogênico' (pathogenic - scientific), and 'transmissível' (transmissible - general). Each has slightly different nuances, with 'infeccioso' focusing on the agent's ability to cause infection and spread.

The plural forms are 'infecciosos' for masculine nouns and 'infecciosas' for feminine nouns. For example, 'os vírus infecciosos' (the infectious viruses) and 'as bactérias infecciosas' (the infectious bacteria).

The pronunciation is approximately /ˌɪn.fɛkˈʃuː.zu/, with the stress on the third syllable ('cio'). The 'ci' makes a 'sh' sound, and the final 'o' is like 'oo'.

A doctor would use 'infeccioso' to describe a patient's condition, a specific pathogen, or a risk factor. For example, they might say 'Esta é uma doença infecciosa' (This is an infectious disease) or 'O paciente não é mais infeccioso' (The patient is no longer infectious).

Yes. For instance, some infections can be caused by consuming contaminated food or water (infectious), but they might not easily spread from person to person (not contagious). Conversely, a highly contagious disease might have a low infectious potential in certain environments.

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