A healthcare doctor prepares a dose of Johnson & Johnson’s Coronavirus Disease (COVID-19) vaccine for a commuter during the opening of MTA’s public vaccination program on the 179th Street subway station in the Queens borough of New York City in front. USA, May 12, 2021.
Shannon Stapleton | Reuters
The National Institutes of Health announced Tuesday that they had begun an early-stage clinical trial looking into what happens when an adult is fully vaccinated with some type of Covid-19 vaccine, such as: PfizerIt’s amplified with another intake about three to four months later.
The study will enroll approximately 150 adults who have received any of the three Covid vaccination regimens currently available under the Food and Drug Administration’s emergency approval: Johnson & Johnson‘s, Moderna‘s or Pfizer’s.
Federal health officials said people who have not yet received an approved vaccine are also eligible to enroll in a separate group for the study. These volunteers will receive two doses of the vaccine from Moderna and will receive a booster dose of one of the three vaccines around 12 to 20 weeks later, officials said.
“Although the vaccines currently approved by the US Food and Drug Administration offer strong protection against COVID-19, we must prepare for the possibility that booster vaccinations will be required to counter declining immunity and step up with a developing virus hold, “said Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, a member of the NIH.
“The results of this study are intended to inform public health policy decisions about the potential use of mixed vaccination schedules in the event that booster doses are indicated,” he added.
The study is coming because drug manufacturers and some scientists are now saying that people are likely to need a booster dose of the Covid-19 Vaccinations and possibly additional vaccinations every year, just like the seasonal flu.
Pfizer and Moderna’s Covid-19 vaccines currently require two doses three to four weeks apart, while Johnson & Johnson vaccines only require one prick. All three vaccines have been shown to be highly effective against Covid, although company executives now expect this strong protection to wear off over time.
Dr. Peter Marks, director of the FDA’s Center for Biologics Evaluation and Research, said last month that Covid-19 booster vaccinations could be required for fully vaccinated individuals within a year.
“So, hopefully, you know, it would be nice if it turned out it was going to be a year before someone needed a booster,” Marks said on May 18th during a virtual press conference on the Covid-19 vaccines with journalists from high and middle school.
“But we still don’t know,” he added. “It could be more, it could be a little less, but … that’s just something we need to find out over time.”
Each vaccine group in the NIH study will enroll about 25 people ages 18 to 55 and about 25 people ages 56 and older.
Twelve to 20 weeks after their initial vaccination, participants in the study will receive a single booster dose of the Moderna vaccine.