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Pfizer COVID-19 vaccine boosters are now available for those who are 65 or older, 18 or older with conditions that put them at high risk, and those in certain high-risk occupations. People in those categories can get their booster dose 6 months after their second dose of the Pfizer vaccine. A third dose of the Moderna and Pfizer vaccines are also available to those with certain immune conditions, 28 days after their second vaccination.

The Delaware Division of Public Health (DPH) this week announced that the state’s vaccine providers can begin administering booster doses of the Pfizer-BioNTech vaccine to certain populations recommended by the Centers for Disease Control & Prevention (CDC).

On Wednesday, Sept. 22, the U.S. Food & Drug Administration (FDA) formally voted to expand the Emergency Use Authorization (EUA) to allow for a booster dose of Pfizer-BioNTech vaccine to be administered for certain populations six months after those vaccinated with the Pfizer vaccine received the second dose of the vaccine.

Boosters are not yet authorized for people who received either the Moderna or Johnson & Johnson vaccine, as there is not adequate data to support including them at this time, officials noted.

The CDC’s Advisory Committee on Immunization Practices (ACIP) met Thursday, Sept. 23, to provide additional guidance on who should receive a booster dose under the EUA. CDC Director Dr. Rochelle P. Walensky endorsed the advisory committee’s recommendations and also recommended a booster dose for those in high-risk occupational and institutional settings.

Based on CDC recommendations, these people should receive a booster shot of Pfizer-BioNTech’s COVID-19 vaccine at least 6 months after their second dose of Pfizer-BioNTech:

• People 65 or older and residents in long-term care settings;

• People ages 50-64 with underlying medical conditions, which include but are not limited to cancer, chronic heart, lung and kidney diseases, dementia, diabetes, down syndrome, HIV, overweight and obesity, pregnancy, organ transplants and stroke.

Additionally, CDC recommends these individuals may also receive a booster shot of Pfizer-BioNTech’s COVID-19 vaccine at least 6 months after their second dose of Pfizer-BioNTech.

• People ages 18-49 with underlying medical conditions (the same categories as above), based on their individual benefits and risk;

• People ages 18-64 who are at increased risk for COVID-19 exposure and transmission because of occupational or institutional setting, including healthcare workers, teachers and daycare staff, grocery workers and those in homeless shelters or prisons, among others.

According to CDC, while data show vaccines remain effective in preventing hospitalization and severe disease, a booster shot will help provide continued protection against severe disease in these populations who are especially at risk for severe COVID-19, including those older than 65, residents of long-term care facilities and those ages 50-64 with underlying health conditions. DPH is encouraging individuals in these most at-risk categories to seek booster vaccines first.

“We are very confident that we have enough vaccine to meet the needs of individuals who meet the criteria for a booster, as vaccine capacity is now very different than it was when COVID-19 vaccines first became available. With that said, it may take some time to offer boosters to everyone who qualifies,” said DPH Director Dr. Karyl Rattay. “We are focusing intently on protecting Delaware’s most vulnerable and we encourage everyone to consider their own situation when heading out to receive their booster in the next few weeks.”

COVID-19 vaccine providers in Delaware were able to begin administering booster doses of Pifzer immediately or as soon as they are able. Officials urged members of the public who are eligible for a booster shot to seek the vaccine at existing vaccination sites, including pharmacies, healthcare providers, Federally Qualified Health Centers (for patients) and standing DPH vaccine sites, including:

• Blue Hen Corporate Center: 655 S. Bay Road, Dover, DE 19901;

• Georgetown Plaza: 19 Georgetown Plaza, Georgetown, DE 19947;

• Canby Park: 1920 Maryland Ave., Wilmington, DE 19805; and

• University Plaza, 256 Chapman Road, Suite 100, Newark, DE 19702.

“While making booster shots available is an important move, DPH’s focus continues to be getting more Delawareans fully vaccinated,” said Rattay. “With only half of the state’s population fully vaccinated, we still have a long way to go.”

Additionally, Delawareans who have certain immunocompromising conditions — including those who have received organ or stem cell transplants, are undergoing treatment for HIV or cancer, or who are taking medication that suppresses the immune system — are currently eligible to receive a “third dose” of either the Pfizer or Moderna vaccines, if they completed their second dose at least 28 days prior.

DPH encouraged providers to use their clinical judgement and to consider additional factors for their patients when determining if the person meets the qualifications for immunocompromised status and is eligible for a “third dose” of Pfizer or Moderna. Those factors may include assessing patients who reside in a long-term care facility or patients of advanced age (especially those older than 85).

For a complete list of locations where vaccines are available, visit