There has been a lot of discussion on herd immunity to COVID-19
lately as new studies suggest that people’s immune system has the
ability to recognize the virus, explaining why certain individuals have
only mild symptoms or none at all.
Herd immunity happens when a large number of people are immune to a
disease—either from prior infection or vaccination—which acts to stop or
slow down the spread, thus protecting the entire community, including
those who have not had the illness.
Estimates for percentages needed for herd immunity has mainly focused on the role of antibodies of those who have recovered from COVID-19, although scientists are still unsure how long the antibodies protect against reinfection. Studies are now also beginning to consider the contribution of T-cells to herd immunity for COVID-19.........To Read More...
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