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A New York study shows vaccine booster shots are needed in the months to come

SCOTT HEINS/OFFICE OF GOVERNOR ANDREW CUOMO

The first American to get the COVID-19 vaccine got a booster shot last week. A new study in New York suggests more people will get booster shots this fall.

Sandra Lindsay, director of nursing for critical care at Northwell Health's Long Island Jewish Medical Center, became the first person in the U.S. to take a dose of a COVID-19 vaccine last December, and received her second dose of the Pfizer vaccine weeks later. Ten months later, Lindsay got the booster shot to bolster her resistance to the virus.

COVID-19 vaccines lost some of their effectiveness when the Delta variant became the most dominant strain in the U.S., according to one of the nation’s largest vaccine study released Monday in New York.

“The findings of our study support the need for boosters in older people in particular, and we encourage them to seek out a booster shot from their health care provider, pharmacy or mass vaccination site,” Dr. Eli Rosenberg, lead study author of the state Department of Health, said in a statement.

The state study analyzed nearly 9 million New Yorkers ages 18 and older. It looked at how the Delta variant, aided by the reduced use of masks, weakened the strength of the Pfizer, Moderna and Johnston & Johnston vaccines.

The study shows declines in vaccine effectiveness against lab-confirmed COVID infections were greatest for Pfizer recipients (24.6% less for those aged 18-49, 19.1% less for those 50-64 and 14.1% less for over 65) compared with Moderna (18% less vaccine effectiveness for 18-49, 11.6% less for 50-64 and 9% less for over 65) and Johnson & Johnson recipients (19.2% less for 18-49, 10.8% less for 50-64 and 10.9% less for over 65).

State health officials said the study makes the case for targeted booster shots this fall, especially for people over 65 and those who are immunocompromised.

“We saw limited evidence of decline in effectiveness against severe disease for people ages 18 to 64 years old. While we did observe early declines in effectiveness against infections for this age group, this appears to have leveled off when the Delta variant became the predominant strain in New York,” Rosenberg said. “Together, this suggests that ongoing waning protection may be less of a current concern for adults younger than 65 years.”

Pfizer vaccine recipients are the only people eligible for a third dose. Recipients of the Johnson & Johnson and Moderna vaccines will have to wait for now. The I.S. Centers for Disease Control and Prevention recommends the booster shot for people over the age of 65, those with underlying health conditions and adult residents of long-term care facilities.

A native Long Islander, J.D. is WSHU's afternoon news editor. Formally WAMC’s Berkshire bureau chief, he has reported for public radio stations, including bylines with WSHU, WNYC, WBUR, WNPR and NPR. J.D. has reported on healthcare and small businesses for "Long Island Business News" and real estate and land-use for The Press News Group newspapers. He also hosted, produced and engineered award-winning programs at WUSB Stony Brook. An avid fencer in his free time, J.D. holds a B.A. in journalism and sociology from Stony Brook University and an M.S. in communications from the Newhouse School at Syracuse University.
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