virus - Kids, Britannica Kids

Viruses are tiny particles that cause disease in people, other animals, and plants. Different viruses cause the common cold, influenza (flu), chicken pox, measles, AIDS, and…

Computer viruses: How they spread and how to avoid them - Norton

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immune system - Kids, Britannica Kids

Our lives have been taken over by a tiny germ we can't even see. It's time to explain to young children (and their parents and carers) what's really

What is a Virus? (Lift the Flap First Questions and Answers): 1

AIDS (acquired immunodeficiency syndrome) - Students

coronavirus - Kids, Britannica Kids

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