Covid-19 Vaccine Trial Successful; Pfizer Could Produce One Billion Doses in 2021

The study was randomized and tested on 45 volunteers who were administered three doses of the vaccine or a placebo.

RIO DE JANEIRO, BRAZIL - July began with good news as the experimental vaccine against the novel coronavirus produced by pharmaceutical giant Pfizer in partnership with biotechnology company BioNTech has yielded positive results in limited human trials. The vaccine has encouraged an immune response in healthy patients but has also . . .

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