WASHINGTON (AFP): Pfizer and BioNTech announced Thursday (July 8) they would seek authorisation for a third dose of their Covid-19 vaccine to boost its efficacy, as the Delta variant drove devastating outbreaks in Asia and Africa and cases rose again in Europe and the United States.
With the pandemic once again regaining intensity, Japan banned fans from most Olympic events and placed Tokyo under a virus state of emergency throughout the Games.
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