Question: What Are The 2 Types Of Flu Shots?

What is best month to get flu shot?

CDC recommends that people get a flu vaccine by the end of October.

However, getting vaccinated early (for example, in July or August) is likely to be associated with reduced protection against flu infection later in the flu season, particularly among older adults..

Do you have to wait 12 months between flu shots?

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.

Is there a new flu shot for 2020?

There are two new vaccines licensed for use during the 2020-2021 flu season. The first is a quadrivalent high-dose vaccine licensed for use in adults 65 years and older. This vaccine will replace the previously licensed trivalent high-dose vaccine.

How long does flu shot last?

How long does immunity from influenza vaccine last? 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.

Are all flu shots the same?

Are all influenza vaccines the same? All influenza vaccines contain antigen derived from the same influenza viruses, with the one difference being that trivalent vaccines have 3 different antigens and quadrivalent vaccines have four different antigens (the same three that are in the trivalent vaccines, plus one more).

Why are there 2 different flu vaccines this year?

As of this year, both flu vaccines designed for older adults available in a quadrivalent form. Quadrivalent vaccines do provide protection against an additional influenza B strain. That said, you should know that experts say that older adults are less likely to be seriously ill from influenza B than from influenza A.

Which flu shot should I get 2020?

For the 2019-2020 flu season, ACIP recommends annual flu vaccination for everyone 6 months and older with any licensed, age-appropriate flu vaccine (IIV, RIV4, or LAIV4) with no preference expressed for any one vaccine over another.

What is the difference between regular flu shot and senior flu shot?

The high dose vaccine (brand name Fluzone High-Dose) contains four times the amount of antigen (the inactivated virus that promotes a protective immune response) as a regular flu shot. It is associated with a stronger immune response following vaccination (higher antibody production).

Which flu shot is best?

The most commonly available flu vaccine, and the one recommended for most people, is called the quadrivalent flu vaccine. That “quad” in the name refers to the four flu virus strains the vaccine is designed to control: two influenza A viruses, and two influenza B viruses.

Are there 2 types of flu shots?

There are also some flu vaccines that protect against three different flu viruses (“trivalent”); an influenza A (H1N1) virus, an influenza A (H3N2) virus, and one influenza B virus. Two of the trivalent vaccines are designed specifically for people 65 and older to create a stronger immune response.

Why are there two types of flu vaccine this year?

These flu vaccines are slightly different because they protect against four different strains of the flu virus (two influenza A viruses and two influenza B viruses). Because of this, these vaccinations can provide broader protection from infection.

How effective is the flu shot 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.

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 Flu A or B worse 2020?

Which is worse: influenza A or influenza B? Influenza type A and type B are similar, but type A is overall more prevalent, sometimes more severe, and can cause flu epidemics and pandemics.