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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.

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But the pandemic has left some evidence that viral infection may play a role in reawakening dormant cancer cells present in a patient’s body before infection.

From Los Angeles Times Jun. 15, 2026

Jones has endured a tough year after suffering a head injury in the gym, while former US Open champion Emma Raducanu has been set back by a viral infection.

From BBC May 29, 2026

Today it’s a nightmare for many onboard, under the threat of viral infection.

From Barron's May 6, 2026

Correction, April 22, 2026: This piece originally misstated that citrus canker is a viral infection.

From Slate Apr. 20, 2026

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

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