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Showing results for viral infection. Search instead for viral-infections.

viral infection

Cultural  
  1. An infection caused by a virus. At present, viral infections cannot be treated with antibiotics. (Compare bacterial infection.)


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Diseases caused by viral infections include herpes, chicken pox, hepatitis, influenza, and the common cold.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

According to Public Health Wales, hepatitis A is a viral infection that affects the liver and is usually spread through contaminated food and drink.

From BBC • May 6, 2026

There was citrus canker, a viral infection that had plagued citrus for years prior to the arrival of greening.

From Slate • Apr. 20, 2026

Mpox, formerly known as monkeypox, is a viral infection characterized by a flu-like fever and rash that can last weeks.

From Barron's • Mar. 17, 2026

If you’ve had a recent viral infection, some evidence suggests the antiviral interferon response stays active, making it easier for your body to mount a quick defense against the next virus, Foxman said.

From The Wall Street Journal • Jan. 19, 2026

It is my medical opinion that in Hawaii you had an episode of myocarditis triggered by a viral infection.

From "Everything, Everything" by Nicola Yoon

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