About H1N1: Symptoms and Complications of H1N1 Influenza

The symptoms of HIN1 flu virus are very similar to those of seasonal human influenza. People with H1N1 flu virus may experience:

  • body aches
  • chills
  • cough
  • fatigue
  • fever
  • headache
  • loss of appetite
  • sore throat

Some people with H1N1 flu virus have also reported vomiting and diarrhea.

The severity of symptoms can vary from mild to severe and sometimes require hospitalization. In some cases, severe complications such as pneumonia and respiratory failure can cause death. Like the seasonal flu, H1N1 flu may worsen existing chronic medical conditions.

Learn more about Cough and Flu