Pfizer begins Covid vaccine trial in young children
WASHINGTON, United States (AFP) -- Pfizer said Thursday it had begun clinical trials for its Covid vaccine in children…
5 years ago
vaccine trial
Vaccine trial by AztraZeneca, Oxford University resumes as virus continues grim march
by Daniel LAWLER Agence France Presse Clinical trials of one of the most advanced experimental Covid-19 vaccines resumed Saturday…
6 years ago
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