Question: What Does Flu Shot Protect Against?

How effective is the flu shot 2020?

How effective the 2020 flu shot is likely won’t be known until later in the season, once it’s had time to do its thing.

A Centers for Disease Control and Prevention study in 2019 found that the vaccine that year was 39% effective for all age groups, and 42% effective for people over 50..

What symptoms does the flu shot prevent?

The annual flu vaccine is the most effective way to reduce your risk of getting influenza or reducing its severity, if you do….Gastroenteritis, on the other hand, attacks your intestines, causing signs and symptoms such as:Diarrhea.Vomiting.Fever.Chills.Headache.Body aches.

How long does the flu shot last 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.

What is the success rate of the flu shot?

The flu is a serious illness. When the viruses in the vaccine are a good match with what’s circulating, the vaccine can reduce your risk of having the flu by 40%-60%.

When should I get my flu shot 2019?

In the northern hemisphere, the CDC recommends getting vaccinated between early September and late October. The flu virus is around all year, but it spreads more easily from September through the spring, generally peaking between December and February.

When should a senior citizen get a flu shot?

A Flu Vaccine is the Best Protection Against Flu The best way to protect against flu and its potentially serious complications is with a flu vaccine. CDC recommends that almost everyone 6 months of age and older get a seasonal flu vaccine each year by the end of October.

Does the flu shot weaken your immune system?

Getting a flu shot does not weaken your immune system and make you more likely to get the flu. Getting a flu vaccine prepares your immune system for the flu. A flu vaccine teaches your immune system to recognize that virus as a threat.

Is influenza A or B worse?

While influenza B viruses are typically less common than influenza A viruses, influenza B infections can be more severe in children, and can lead to complications that require hospitalization or death.

How Long Will a flu shot protect you?

Protection from influenza vaccine is thought to persist for at least 6 months. Protection declines over time because of waning antibody levels and because of changes in circulating influenza viruses from year to year.

How long is flu contagious?

When Flu Spreads People with flu are most contagious in the first three to four days after their illness begins. Most healthy adults may be able to infect others beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick.

What flu is going around 2020?

“Nationally, flu activity has been elevated … and continues to increase; this represents somewhat of an early start to the U.S. flu season,” said Scott Pauley, a press officer for CDC. “Flu activity is currently being caused mostly by influenza B/Victoria viruses, followed by H1N1 viruses and H3N2 viruses.

What is the best month to get a flu shot?

It takes about two weeks for the flu shot to protect you. Ideally, the best time to get the shot is in early September and no later than late October. If you don’t get it early, getting a flu shot later still helps. Vaccination earlier may cause protection to weaken by end of the season.

Which age groups are most important to vaccinate?

Recommended Vaccines by Age2 to 3 Years. … 4 to 6 Years. … 7 to 10 Years. … 11 to 12 Years. … 13 to 18 Years. … 19 to 26 Years. … 27 to 60 Years. … 60 Years or Older. In addition to seasonal flu (influenza) vaccine and Td or Tdap vaccine (tetanus, diphtheria, and pertussis), people 65 years and older should also get:More items…•

What are the side effects of this year’s flu shot?

Common side effects from the flu shot include:Soreness, redness, and/or swelling from the shot.Headache.Fever.Nausea.Muscle aches.

What strains does the flu shot cover 2020?

For 2019-2020, trivalent (three-component) vaccines are recommended to contain:A/Brisbane/02/2018 (H1N1)pdm09-like virus (updated)A/Kansas/14/2017 (H3N2)-like virus (updated)B/Colorado/06/2017-like (Victoria lineage) virus.