What causes herpes, and how can you treat it? - Christine Johnston

A system is a group of parts that work together as a whole. It can be used to describe a set of rules, a computer program, or a part of the body.

Something that is hard to do, understand, or deal with because it requires a lot of effort or skill. It can also describe a person who is not easy to please or work with.

A submicroscopic infectious agent that replicates only inside the living cells of an organism, often causing disease. In technology, it refers to a piece of malicious code that replicates itself to damage or disrupt a computer system.

Describes something that spreads rapidly through a population, specifically referring to a biological virus or digital content. In a digital context, it refers to images, videos, or information that is shared quickly and widely across social media platforms.