Here to help you detect the flu.
Influenza, known as “the flu”, is a respiratory infection caused by a virus. The flu virus usually spreads from person to person through coughing or sneezing. You can also get the flu by touching a surface that has the flu virus on it, and then touching your nose or eyes.
The flu is most common during certain times of the year, known as flu season. In the United States, flu season can begin as early as October and end as late as May. During each flu season, millions of Americans get the flu. Most people who get the flu will feel sick with muscle aches, fever, and other uncomfortable symptoms, but will recover within a week or so. For others, the flu can cause very serious illness and even death.
Influenza A & B
Influenza is a viral infection that attacks your respiratory system — your nose, throat and lungs. Influenza is commonly called the flu.
Each year, on average, 5 to 20 percent of the United States population gets the flu.1
At Risk Populations
Anyone can get flu (even healthy people), and serious problems related to flu can happen at any age, but some people are at high risk of developing serious flu-related complications if they get sick. This includes people 65 years and older, people of any age with certain chronic medical conditions (such as asthma, diabetes, or heart disease), pregnant women, and children younger than 5 years.2