What Is Swine Flu?

What Is Swine Flu?
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Swine flu (H1N1 and H3N2v influenza virus) facts

Swine flu is a respiratory disease caused by influenza viruses that infect the respiratory tract of pigs and result in a barking cough, decreased appetite, nasal secretions, and listless behavior; the virus can be transmitted to humans.

It’s called swine flu because in the past, the people who caught it had direct contact with pigs.

Swine flu viruses may mutate (change) so that they are easily transmissible among humans.


Swine Flu Symptoms

These, too, are pretty much the same as seasonal flu. They can include:



Sore throat

Stuffy or runny nose

Body aches




  • The disease lasts about three to seven days with more serious infections lasting about nine to 10 days.
  • Vaccination is the best way to prevent or reduce the chances of becoming infected with influenza viruses.
  • Primary-care specialists, pediatricians, and emergency-medicine doctors usually treat the disease, but other specialists may be consulted if the flu is severe and/or complicated.
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10 Responses to "What Is Swine Flu?"

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