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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.

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

Hepatitis B is a viral infection that attacks the liver and can lead to both acute and chronic illness.

From Salon • Dec. 12, 2025

It occurs to me how awful that nickname is: Calling your needy little sister something that’s one letter off from a viral infection that causes acute inflammation of the brain?

From "Odd One Out" by Nic Stone