Riverside, California 2021-09-21 07:19:06 –
Johnson & Johnson said that when given a booster shot two months later, “antibody levels were four to six times higher than were observed after a single shot.”
Washington — Johnson & Johnson announced on Tuesday that a booster dose of the coronavirus vaccine could provide stronger protection against the virus.
In Phase 3 studies, The company said The second shot of the vaccine was taken 56 days after the first shot provided 94% protection against COVID-19 in the United States. It added that it provides complete protection for severe / severe cases of COVID-19 at least 14 days after the final vaccination.
J & J said in a statement that it conducted two initial studies of previously vaccinated people and found that the second dose increased antibody response in adults aged 18 to 55 years. I did. The results of this study have not yet been peer reviewed.
A New Jersey-based company added that when given a booster shot two months later, “antibody levels were four to six times higher than observed after a single shot.”
According to Johnson & Johnson, booster shots six months after the first injection increased antibodies 12-fold.
Dr. Paul Stoffels, MD, Vice Chairman and Chief Scientific Officer of Johnson & Johnson’s Executive Committee, said: Booster Shot has created evidence that it is expected to further enhance protection against COVID-19 and significantly extend the protection period. “
The Johnson & Johnson single-dose vaccine was granted an emergency use authorization by the US Food and Drug Administration in February of this year. NS Centers for Disease Control and Prevention Report More than 14.8 million Americans have already been vaccinated with the J & J vaccine.
The efficacy of a single dose of Johnson & Johnson was slightly lower than that of the double dose Pfizer vaccine and the Moderna COVID-19 vaccine. However, booster shot study data show a high level of effectiveness as well as other options.
Johnson & Johnson said it will provide the latest data to the FDA and other global regulators.
Dr. Mathai Mammen, MD, Global Head of Johnson & Johnson’s Janssen Research and Development, said: When the & Johnson COVID-19 vaccine is given, the defense against COVID-19 is further enhanced. “
The Associated Press contributed to this report.
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