The Pfizer Covid 19 vaccine rollout begins tomorrow in the US. According to one of the developers of the Pfizer vaccine it will be next Summer before the world is back to pre Covid 19 normal. UGH!!! another year unless vaccinated or already have antibodies.
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At least 30% percent of the world will have to be vaccinated to have an impact on the spread of the novel coronavirus pandemic, the biotech firm that developed one of the world's major vaccine candidates said Wednesday.

"But, we will only get a full effect if we reach about 60 to 70% of people," said Dr. Ugur Sahin, the CEO and co-founder of BioNTech said, adding that he expects this to be achieved by the end of next summer.