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CDC conducts studies each year to determine how well the flu vaccine protects against flu.
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 Influenza (Flu)
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Weekly U.S. Influenza Surveillance Report
CDC's Influenza Division produces a weekly influenza surveillance report, FluView. According to this week's report (Feb 4-10), seasonal influenza activity increased in the United States. Forty-three states experienced high Influenza Like Illness (ILI) activity levels.
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Influenza Activity Update-MMWR
According to CDC’s recent MMWR, early vaccine effectiveness estimates for this season show the vaccine has performed similar to what we expected at the beginning of the season: the vaccine is 36% effective overall, reducing the risk of getting sick and having to go to the doctor from flu by one third.
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How Well Does the Flu Vaccine Work?
CDC conducts studies each year to determine how well the influenza (flu) vaccine protects against flu illness. How well the flu vaccine works (or its ability to prevent flu illness) can range widely from season to season, depending on who is being vaccinated and the match between the circulating flu viruses and the vaccine.
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 Follow us on Twitter
Most people with #flu won’t need to see a doctor, but it is important to seek care early if you are very sick, at high risk of serious flu complications and develop flu symptoms, or if you have certain emergency warning signs, such as difficulty breathing. https://go.usa.gov/xn6wY
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| Content source: National Center for Immunization and Respiratory Diseases |
| This email was sent to list-cdc@xxxxxxxxxxx using GovDelivery, on behalf of: Centers for Disease Control and Prevention • 1600 Clifton Rd • Atlanta, GA 30333 • 1-800-CDC-INFO (800-232-4636) |
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