Word Network: 感染症

Microscopic single-celled organisms that can be found everywhere, including inside the human body. While some cause diseases, many are beneficial for health and the environment.

The medical process of administering a vaccine to a person or animal to produce immunity against a specific disease. It is used broadly in public health contexts to describe the preventative measure of getting a shot.

A biological agent, such as a virus or bacterium, that causes disease or illness in its host. It is a technical term used to describe the root cause of an infection.

The science and art of preventing disease, prolonging life, and promoting health through organized efforts of society.

A microscopic parasite that can infect living organisms and cause disease, or a malicious software program designed to damage computer systems. In Japanese, it is used identically for both biological and digital contexts.