COVID-19 Coronavirus: Research suggests recovery from Covid-19 may only grant immunity for a few months July 13, 2020
COVID-19 March 18, 2020 Coronavirus: What is herd immunity? | LBCHerd immunity is when enough people become immune to a contagious disease that it significantly slows down the spread of the infection. The UK’s Chief Scientific Advisor Patrick Vallance said on Friday that experts estimated that about 60 per cent…