J&J Says A Booster Shot For Its Vaccine May Have Big Benefits



Johnson & Johnson says it has evidence that people who received its one-shot COVID-19 vaccine could benefit from a booster shot after six months.

The pharmaceutical giant said in a news release Wednesday that when it gave participants in a study a second jab of its coronavirus vaccine after six months, their antibody levels were nine times higher than 28 days after their first dose.

The data suggests that an additional shot might serve as a booster if the vaccine’s effectiveness begins to wane.

“We have established that a single shot of our COVID-19 vaccine generates strong and robust immune responses that are durable and persistent through eight months,” said Mathai Mammen, global head of Janssen Research & Development, Johnson & Johnson, in a statement.

“With these new data, we also see that a booster dose of the Johnson & Johnson COVID-19 vaccine further increases antibody responses among study participants who had previously received our vaccine,” he added.

The data have not yet been published in a scientific journal or reviewed by other researchers.



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