What is cold chain in immunization?

What is the main ingredient in an mRNA coronavirus vaccine?

mRNA – Also known as messenger ribonucleic acid, mRNA is the only active ingredient in the vaccine. The mRNA molecules contain the genetic material that provide instructions for our body on how to make a viral protein that triggers an immune response within our bodies.

What is the difference between Pfizer and Moderna vaccine?

Moderna’s shot contains 100 micrograms of vaccine, more than three times the 30 micrograms in the Pfizer shot. And Pfizer’s two doses are given three weeks apart, while Moderna’s two-shot regimen is administered with a four-week gap.

What are the side effects of the Covid vaccine?

Millions of vaccinated people have experienced side effects, including swelling, redness, and pain at the injection site. Fever, headache, tiredness, muscle pain, chills, and nausea are also commonly reported . As is the case with any vaccine, however, not everyone will react in the same way.

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What does the Pfizer-BioNTech COVID-19 vaccine contain?

The Pfizer-BioNTech COVID-19 Vaccine contains messenger RNA (mRNA) which is genetic material. The vaccine contains a synthetic piece of mRNA that instructs cells in the body to make the distinctive “spike” protein of the SARS-CoV-2 virus.

What is the ingredient in the COVID-19 vaccine that people are allergic to?

PEG is an ingredient in the mRNA vaccines, and polysorbate is an ingredient in the J&J/Janssen vaccine. If you are allergic to PEG, you should not get an mRNA COVID-19 vaccine.

Are the Pfizer and Moderna COVID-19 vaccines interchangeable?

COVID-19 vaccines are not interchangeable. If you received a Pfizer-BioNTech or Moderna COVID-19 vaccine, you should get the same product for your second shot. You should get your second shot even if you have side effects after the first shot, unless a vaccination provider or your doctor tells you not to get it.

Can you get a Pfizer COVID-19 booster if you had the Moderna or Johnson & Johnson vaccine initially?

Boosters for all patients must be given at least six months after an initial Pfizer vaccine course. Patients who received initial doses of the vaccines made by Moderna Inc. and Johnson & Johnson aren’t eligible yet. Approval of a booster regimen for those patients is expected in the coming months.

Can you take the Pfizer booster if you had Moderna vaccine?

While a third shot can officially start going into arms, there is a caveat: Only people who have already been fully immunized with Pfizer-BioNTech’s two-dose Covid vaccine are eligible for a booster shot, which must also be Pfizer’s, based on the decisions made this week.

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What is COVAX in the context of COVID-19?

COVAX is the vaccines pillar of the Access to COVID-19 Tools (ACT) Accelerator. The ACT Accelerator is a ground-breaking global collaboration to accelerate the development, production, and equitable access to COVID-19 tests, treatments, and vaccines.

What is the Covax initiative for the development of COVID-19 vaccine?

COVAX aims to accelerate the development and manufacturing of COVID-19 vaccines, and guarantee fair and equitable access for every country. COVAX is co-led by the Coalition for Epidemic Preparedness Innovations (CEPI), Gavi and WHO, with UNICEF as a key delivery partner and PAHO as the procurement agent in the Americas.