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What Are Your Odds of Getting the Flu?

Medically Reviewed by Nayana Ambardekar, MD on November 19, 2022

How many people get the flu each year? How much does it cost us? How well does the vaccine work?

Here's a rundown of some important statistics based on the best available data.

5% to 20% -- Percentage of the U.S. population that will get the flu, on average, each year.

200,000 -- Average number of Americans hospitalized each year because of problems with the illness.

8,200 to 20,000 -- Number of people who die each year from flu-related causes in the U.S.

$10 billion+ -- Average costs of hospitalizations and outpatient doctor visits related to the flu.

1 to 4 days -- Typical time it takes for symptoms to show up once you've caught the virus. Adults can be contagious from the day before symptoms begin through 5 to 10 days after the illness starts.

December to February -- Peak flu season in the U.S.

173.5 million to 183.5 million -- Number of flu vaccine doses expected to be available in the U.S. for the 2022-23 flu season.

6 months -- The youngest age for which the CDC recommends a flu shot.

2 weeks -- Time it takes after vaccination for an adult to develop disease-fighting antibodies against the flu.

3 to 7 days -- Time it takes for a regular case of the illness to go away. You might have a cough and fatigue for more than 2 weeks, though.