How far apart are COVID-19 vaccine doses given?

  • Two doses of Pfizer-BioNTech vaccine should be given 3 weeks (21 days) apart.
  • Two doses of Moderna vaccine should be given 4 weeks (28 days) apart.
  • Only one dose of Johnson & Johnson’s Janssen (J&J/Janssen) vaccine should be given.

What is the interval between the first and second doses of the Pfizer and Moderna COVID-19 vaccines?

* The recommended interval between the first and second dose is 21 days for Pfizer-BioNTech and 28 days for Moderna; in this study, second doses received 17–25 days (Pfizer-BioNTech) and 24–32 days (Moderna) after the first dose were included.

What is the recommended interval for receiving the second COVID-19 vaccine?

Although the second dose should be administered as close to the recommended interval as possible, it may be administered up to 42 days after the first dose when a delay is unavoidable. If the second dose is administered beyond the allowable interval, the series does not need to be restarted.

Does everyone need a second COVID-19 booster shot?

Other public health officials and agencies echo Fauci’s advice: Wait on the data. “At this time, CDC does not have a recommendation for a fourth dose/second booster dose for most Americans,” says Scott Pauley, a CDC spokesperson.

When should I take the COVID-19 booster vaccine after a Pfizer-BioNTech or Moderna vaccine?

Everyone ages 18+ should get a booster dose of either Pfizer-BioNTech or Moderna (mRNA COVID-19 vaccines) at least 5 months after the last dose in their primary series.

How many injections do you need for the Pfizer COVID-19 vaccine?

Number of shots: 2 shots, 21 days apart

When can I take a third Moderna COVID-19 shot?

Moderately to severely immunocompromised people should get an additional primary shot (third dose) at least 28 days after their second shot. Booster Shot: People ages 18 years and older who received a Moderna primary series should get a booster shot at least 6 months after completing their primary series.

Should the booster shot be the same as the first two shots?

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The FDA has authorized three vaccine boosters — Pfizer-BioNTech, Moderna and Janssen/Johnson & Johnson — and determined that it is safe for individuals to receive a COVID-19 vaccine booster or additional dose that is a different brand than the initial dose or doses.

Is there a difference between the Moderna COVID-19 booster and Moderna third shot?

In the case of Moderna, the booster dose is only half of the original dose. Unlike boosters, third/additional doses of COVID-19 vaccines are for people who received the complete starter series of vaccines but then their immune systems didn’t have a good enough response.

Can the Moderna COVID-19 vaccine be given as a booster?

The FDA amended the emergency use authorization for Moderna COVID-19 Vaccine to allow for the use of a single booster dose administered at least 6 months after completing a primary series of the Moderna COVID-19 Vaccine to individuals 18 years of age and older.

Does your COVID-19 booster vaccine need to be the same brand?

Does my booster vaccine or third dose need to be the same brand as my initial vaccine? With one notable exception, the CDC says booster doses don’t need to match the original vaccines people received earlier this year.

What is a vaccine booster?

A booster shot is an additional dose of a vaccine needed to “boost” your immunity. This will give you better protection from disease. Many routine vaccines require more than one shot to achieve immunity. For example, the MMR (measles, mumps, rubella) vaccine requires two shots.

What is the difference between a booster shot and a regular COVID-19 shot?

Booster shots are given to people who are likely to have developed a strong immune response with prior vaccination, in order to help increase, or boost, the immunity they already have. This is because there is some evidence from clinical trials that antibodies produced after the first two shots decline over time.

Can you mix COVID-19 vaccines?

CDC does not recommend mixing products for a two-dose primary series or additional primary doses. For a booster dose, adults ages 18 years and older may choose which vaccine product they get. CDC recommends either Pfizer-BioNTech or Moderna (mRNA COVID-19 vaccines) in most circumstances.

What kind of booster vaccine is available for COVID-19?

Choosing Your COVID-19 Booster Shot Pfizer-BioNTech or Moderna (COVID-19 mRNA vaccines) are preferred. You may get Johnson & Johnson’s Janssen COVID-19 vaccine in some situations.

Why are Moderna and Pfizer COVID-19 vaccine side effects worse after the second shot?

Side effects from both the Moderna and Pfizer COVID-19 vaccines are more common after the second dose. This is because your immune system recognizes the virus spike protein from the first dose of the vaccine and mounts a stronger response.

Is it safe to mix and match COVID-19 vaccine shots?

Boosters are now available for the three COVID-19 vaccines, made by Pfizer-BioNTech, Moderna and Johnson & Johnson. And the Centers for Disease Control and Prevention (CDC) has given the green light for safely mixing and matching the shots.

Can the COVID-19 vaccine and other vaccines be given simultaneously?

COVID-19 vaccines may be administered without regard to timing of other vaccines. This includes simultaneous administration of COVID-19 vaccine and other vaccines on the same day.

Can you get Pfizer or Moderna vaccine after the Johnson & Johnson COVID-19 vaccine?

If you got J & J as your initial vaccine and are 18 or older, you are eligible for a booster shot two months later, regardless of which one you choose (you’re eligible six months later if you had Moderna or Pfizer-BioNTech as your primary series).

What is the most important ingredient in both Pfizer and Moderna COVID-19 vaccines?

The most important ingredient in both the Pfizer and Moderna vaccines is mRNA. The mRNA tells your cells how to make a protein from the coronavirus. Once your body knows how to make the protein, it can recognize COVID-19 and fight it. Learn more about how mRNA vaccines work.

What medications should be avoided before the COVID-19 vaccine?

It is not recommended you take over-the-counter medicine – such as ibuprofen, aspirin, or acetaminophen – before vaccination for the purpose of trying to prevent vaccine-related side effects.

Who should not take the Pfizer-BioNTech COVID-19 vaccine?

If you have had a severe allergic reaction to any ingredient in the Pfizer-BioNTech COVID-19 vaccine (such as polyethylene glycol), you should not get this vaccine. If you had a severe allergic reaction after getting a dose of the Pfizer-BioNTech COVID-19 vaccine, you should not get another dose of an mRNA vaccine.