Astrazeneca Covid-vaccine

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COVID-19 herd immunity unlikely in 2021 despite vaccine rollout in several nations: WHO
science

COVID-19 herd immunity unlikely in 2021 despite vaccine rollout in several nations: WHO

Scientists estimate that a vaccination rate of about 70% is needed for herd immunity, where entire populations are protected against an infection

Moderna to file today for US, EU clearance for emergency use of COVID-19 vaccine
World

Moderna to file today for US, EU clearance for emergency use of COVID-19 vaccine

Moderna, which created its shots with the US National Institutes of Health, said it got the final needed results over the weekend that suggest the vaccine is more than 94 percent effective