COVID-19 Vaccine Updates

In this video, Michael Calderwood, MD, MPH, chief quality officer at Dartmouth Hitchcock Medical Center, provides an update about COVID-19 vaccines and boosters and how to protect yourself against the newest variants, including:

  • How a booster can greatly protect against severe disease and hospitalization if you do get COVID-19
  • What it means to be up to date on your vaccines
  • New vaccines that, if approved, may be available in the fall

Vaccines for children ages 6 months to 4 years

Children ages 6 months to 4 years can now get the COVID-19 vaccine:

  • The Pfizer-BioNTech vaccine is now authorized for children ages 6 months to 4 years old.
  • The Moderna vaccine is now authorized for children ages 6 months to 5 years old.

Both vaccines have been shown to be safe and effective. Dartmouth Health locations will be offering vaccines to this age group soon. Please continue to check our website for additional information or log in to your myDH account for vaccination locations, dates and times.

For more information, please visit our COVID-19 vaccine FAQ for ages 6 months to 4 years.

Stay informed

Booster shot updates

The U.S. Food and Drug Administration and the Centers for Disease Control and Prevention (CDC) now recommend a booster dose for all children ages 5 to 11 at least 5 months after the primary vaccine series (two doses):

  • For children who are moderately or severely immunocompromised, the recommended primary series is 3 doses of an mRNA vaccine followed by a booster (4th dose).

Adults, age 50 and older should get a second booster (with either the Pfizer or Moderna vaccine) if you had your first booster shot at least 4 months ago:

  • People ages 18 to 49 years of age who received the Janssen COVID-19 vaccine for both their primary series and 1st booster may receive a 2nd booster (with either the Pfizer or Moderna vaccine) at least 4 months after their first booster.

For more information, please refer to our Booster Shots page.


While statewide mask mandates have been lifted, please note that masks are still required in all of our healthcare facilities until further notice. Masks are the most effective way to keep our patients and employees safe.

Are you up to date with your COVID-19 vaccines?

  • You are up to date with your vaccines if you have received all of the recommended COVID-19 vaccines. This includes any booster dose(s) when you are eligible.
  • You are fully vaccinated when you have received your primary series of any of the COVID-19 vaccines.

For more information, refer to the Stay Up to Date with Your Vaccines web page on the CDC website.

For information about vaccine clinics at Dartmouth Hitchcock Medical Center and Dartmouth Hitchcock Clinics, please visit our COVID-19 Vaccine Clinics page.

COVID-19 resources