LONDON - More than nine in 10 people given the Pfizer or AstraZeneca Covid-19 vaccine develops antibodies after a single dose, a new study...
 
PARIS — Sanofi and GlaxoSmithKline’s potential COVID-19 vaccine triggered strong immune responses in all adult age groups in preliminary trials...
 
GENEVA - A COVID-19 vaccine produced in China has been given the green light for global rollout, potentially paving the way for its use in...
 
NEW YORK - A single dose of the Moderna vaccine given as a booster has shown promising results against the variants of Covid-19 first discovered in...
 

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