Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Results 1 - 3 of 3 for H1N1
  1. The H1N1 virus (swine flu) is an infection of the nose, throat, and lungs. It is caused by the H1N1 influenza virus. ... Earlier forms of the H1N1 virus were found in pigs (swine). Over time, the virus changed (mutated) and infected humans. H1N1 is a new virus ...
  2. ... I know if my child has swine flu (H1N1) or another type of flu? Can other people ...
  3. Many different germs, called viruses, cause colds. Symptoms of the common cold include: Cough Headache Nasal congestion Runny nose ...