LONDON -- 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.
“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.
J&J’s vaccine is approved for use in the US, across Europe and there are plans for at least 200 million doses to be shared with the UN-backed Covax effort aimed at distributing vaccines to poor countries. But the company has been plagued by production problems and millions of doses made at a troubled factory in Baltimore had to be thrown out.
Last week, experts at the FDA recommended people 65 and older get a third dose of the Covid-19 vaccine made by Pfizer-BioNTech while Britain previously authorized booster shots for people 50 and over in addition to priority groups like health workers and those with underlying health conditions. Other countries including Israel, France and Germany have also begun offering third vaccine doses to some people.
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