Covid-19: Pfizer expects new vaccine in 100 days | Govit-19

Covid-19: Pfizer expects new vaccine in 100 days |  Govit-19

A bioentech He said on Friday he would collect data in two weeks to determine if he needed to be reworked to deal with the vaccine he had made with Pfizer. For the new variant Do Govt 19 virus, Found in South Africa.

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