Center for Disease Control and Prevention (CDC)
World Health Organization (WHO)
U.S. Department of Health & Human Service (HHS)

H1N1 Flu (Swine Flu) Overview

According to the U.S. Centers for Disease Control and Prevention (CDC), laboratory confirmed
human cases of influenza A/H1N1 have occurred in the United States. Status reports are regularly
updated and available on the
CDC and World Health Organization (WHO) Web sites. Most cases
experienced mild flu-like symptoms. All viruses have the same genetic pattern based on preliminary
testing. For updated travel information see .

What is H1N1 Flu?

H1N1 flu is caused by type A strains of the influenza virus, and is being described as a new
subtype of A/H1N1 not previously detected in swine or humans. Previous variants of H1N1 are
known since 1918 with the most recent major outbreak in 1977.

How can Humans Become Infected?

Transmission of all reported cases appears to have resulted from human-to-human contact
through coughing or sneezing by the infected person.

What are the Symptoms?

Those carrying the virus can reveal typical flu-like symptoms:

  • Fever (greater than 100ºF)
  • Chills
  • Head and body aches
  • Fatigue
  • Cough
  • Stuffy nose
  • Sore throat
  • Vomiting and diarrhea

What can you do to be Prepared?

  • Close attention should be given to proper hand hygiene  and coughing etiquette
  • Employ appropriate infection control procedures as outlined by the U.S. Centers for Disease
    Control and Prevention
  • Stay informed
  • Know the contact information for your local or state health department

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