J&J: Booster dose prompts strong response

Preliminary results are encouraging for a booster dose of its COVID-19 vaccine, Johnson & Johnson researchers reported today. The results have yet to be peer-studied, necessary to ensure their validity.


National News

September 21, 2021 - 8:54 AM

LONDON (AP) — Johnson & Johnson released data showing that a booster dose to its one-shot coronavirus vaccine provides a strong immune response months after people receive a first dose.

J&J said in statement Tuesday that it ran two early studies in people previously given its vaccine and found that a second dose produced an increased antibody response in adults from age 18 to 55. The study’s results haven’t yet been peer-reviewed.

“A booster dose of the Johnson & Johnson COVID-19 vaccine further increases antibody responses among study participants who had previously received our vaccine,” said Dr. Mathai Mammen, global head of research and development at J&J. The company previously published data showing its one-shot dose provided protection for up to eight months after immunization.

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