how effective is the flu vaccine?

how effective is the flu vaccine?
A February 2018 CDC interim report estimated the vaccine effectiveness to be 25% against H3N2, 67% against H1N1, and 42% against influenza B.
Full answer in: en.wikipedia.org
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How effective is the flu vaccine 2020?
21 CDC Morbidity and Mortality Weekly Report, the current influenza vaccine has been 45% effective overall against 2019- 2020 seasonal influenza A and B viruses. Specifically, the flu vaccine has been 50% effective against influenza B/Victoria viruses and 37% effective against influenza A(H1N1)pdm09. Feb 26, 2020
Full answer in: www.aafp.org
How long is flu shot effective 2020?
The flu shot offers protection against the flu for about 6 months. A person should get a flu shot every year, and the best time to get one is the end of October. Jul 30, 2020
Full answer in: www.medicalnewstoday.com
Is the flu shot safe 2020?
The flu vaccine is very safe, although there are some groups of people that shouldn't get it. They include: children less than 6 months of age. people who have had a severe reaction to the flu vaccine or any of its ingredients.
Full answer in: www.healthline.com
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