How Effective Is The Pfizer COVID-19 Vaccine?

Can you still get COVID-19 after vaccine?

Most people who get COVID-19 are unvaccinated. However, since vaccines are not 100% effective at preventing infection, some people who are fully vaccinated will still get COVID-19. An infection of a fully vaccinated person is referred to as a “breakthrough infection.”

Vaccine Breakthrough Infections: The Possibility of Getting COVID-19 after Getting Vaccinated

How long will it take to build immunity after getting the COVID-19 vaccine?

It takes time for your body to build protection after any vaccination. People are considered fully vaccinated two weeks after their second shot of the Pfizer-BioNtech or Moderna COVID-19 vaccine, or two weeks after the single-dose J&J/Janssen COVID-19 vaccine.

Possible Side Effects After Getting a COVID-19 Vaccine

How well does the Pfizer COVID-19 booster work?

Pfizer and its partner BioNTech said that while two doses may not be protective enough to prevent infection, lab tests showed a booster increased by 25-fold people's levels of virus-fighting antibodies.

Booster Shots and Omicron: Is Moderna or Pfizer Performing Better ...

What is the Moderna covid-19 vaccine?

Moderna COVID-19 Vaccine is authorized for use under an Emergency Use Authorization (EUA) for active immunization to prevent coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in individuals 18 years of age and older. For intramuscular injection only.

Moderna COVID-19 Vaccine EUA Fact Sheet for Health Care Providers