British researchers are to explore mixing doses of the Pfizer and AstraZeneca COVID-19 vaccines in a world first trial aimed at finding new ways to swiftly reduce coronavirus infections as new mutated variants emerge, reports Reuters.
Stress on New VariantsWhile thousands of individual changes have arisen as the virus mutates on replication and evolves into new variants, only a tiny minority are likely to be important or change the virus in an appreciable way, according to the British Medical...
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