The symptoms of 2009 H1N1 flu virus include:

• Fever
• Cough
• Sore throat
• Runny or stuffy nose
• Body aches
• Headache
• Chills
• Fatigue

A significant number of people who have been infected with this virus also have reported diarrhea and vomiting.

High Risk Category

Individuals at high risk of serious complications include people 65 years and older, children younger than five years old, pregnant women, and people of any age with certain chronic medical conditions. About 70 percent of people who have been hospitalized with the 2009 H1N1 virus have had one or more medical conditions previously recognized as placing people at "high risk" of serious seasonal flu-related complications. This includes pregnancy, diabetes, heart disease, asthma, and kidney disease.