Herd immunity for Covid-19, or is it just herd mentality in the search for a vaccine?
Some experts believe we should focus on a vaccine for the vulnerable rather than the masses
18 November 2020 - 20:27
Governments and officials are voicing hopes that Covid-19 vaccines could bring “herd immunity”, with some calculating that immunising just two thirds of a population could halt the pandemic disease and help protect whole communities or nations...
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