Find expert answers to your health questions
 

What is a virus?

Filter 1 answers by contributor:

  • PRACTITIONER
  • GROUP
  • AUTHOR
  • TV PERSONALITY
  • ALL
  1. Healthwise
     
    Healthwise answered:
    A virus is a microscopic organism that causes infection and disease. Viral illnesses can range from mild to severe. Some examples are the common cold, West Nile virus, polio, and smallpox.
    Helpful?
    More Related Answers from Healthwise
    A virus is a microscopic organism that causes infection and disease. Viral illnesses can range from mild to severe. Some examples are the common cold, West Nile virus, polio, and smallpox. More

Related Questions

SPONSOR GROUPS

Related Topics