Information About the COVID-19 Vaccines

Getting vaccinated—including getting a booster shot—is the best way to protect yourself, your loved ones, and your community from COVID-19.

The Food and Drug Administration has granted full approval to the Pfizer-BioNTech COVID-19 vaccine for people ages 12 and older, and to the Moderna vaccine for those 18 and older. Children younger than that may receive the Pfizer-BioNTech or Moderna vaccines under emergency use authorization (EUA) if they are at least six months old. Also under EUA, the Johnson & Johnson and Novavax vaccines are available to those 18 and older.

The mRNA vaccines made by Pfizer-BioNTech and Moderna require two shots, normally given about three to four weeks apart. People who are considered severely immunocompromised are recommended to get a third shot as part of their primary series.

The FDA has now authorized updated booster shots that offer increased protection against newer versions of the virus. For continued protection, people ages 5 and up should get one of these booster shots two months after their second dose or most recent booster. More information about these new “bivalent” booster shots can be found on Mount Sinai Today.

Five Things to Know About Vaccines - Updated 12/9/22

Vaccination Appointments

All Mount Sinai patients, including children, can be scheduled for a first dose or bivalent booster COVID-19 vaccine through their doctor's office. We are also offering bivalent boosters on a walk-in basis at the Mount Sinai-Union Square Urgent Care location, Monday-Friday from 8 am to 7 pm.

For information about vaccination through the Mount Sinai South Nassau Vaxmobile, please check Mount Sinai South Nassau’s Facebook page. For an appointment, please email

You can also check the New York StateNew York CityNew Jersey, or Connecticut websites for other locations that offer appointments or walk-in vaccination. New York City is also offering in-home vaccinations for all residents 65 and over.

Patients ages 16 to 18 need parental/guardian consent for vaccination. Patients ages 5 to 15 must be accompanied by a parent or guardian.

People who are age 5 and older and who are moderately or severely immunocompromised are eligible for additional doses of an mRNA vaccine (Pfizer-BioNTech for ages 5 and up; Moderna only if 18 or over) as part of their primary series. This includes many people who are getting treatment for cancer, have had organ transplants, or receive treatments that weaken their immune systems. In addition, if you have received a bone marrow transplant or CAR-T therapy, you may need to repeat your vaccine series if you were vaccinated before receiving these treatments. If you are in one of these categories, please make an appointment through your doctor’s office.

Everyone receiving a booster shot will need to bring their original vaccine card with them to their appointment.

Getting Help With Excelsior Pass

Vaccination records from Mount Sinai are available through New York State’s digital app, Excelsior Pass. If you need help getting your vaccine record into Excelsior Pass, follow these steps.

Frequently Asked Questions about the COVID-19 Vaccine

Below are some helpful answers to the most frequently asked questions we receive about the COVID-19 vaccines.

In addition, a panel of Mount Sinai experts in infectious disease and clinical care have addressed some of the most common concerns about COVID-19 and vaccination in video roundtable discussions. They can be viewed here: