Covid ‘booster’ trial will give British volunteers a third dose of vaccine

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Covid ‘booster’ trial will give British volunteers a third dose of vaccine


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Thousands of volunteers will be injected with a third dose of the Covid-19 vaccine as part of a trial to determine which could be used as “booster” doses to protect against new variants and prevent hospitals are overwhelmed by a potential new wave of infections. This winter.

The Cov-Boost trial – the first in the world to provide vital data on the impact of a third dose on patients’ immune responses – will study the effect of administering an additional dose of any of the seven different vaccines to 2886 British participants, in addition to the two doses of Pfizer / BioNTech or Oxford / AstraZeneca vaccines already received.

In addition to looking at the level of protection offered by a third dose, the trial will also look at the side effects triggered by these booster shots. The results will be used by the Joint Committee on Vaccination and Immunization (JCVI) to decide whether a booster dose is needed and which vaccine would be most suitable for that use. The results are expected by the end of August, with a final decision taken by the JCVI in September.

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