Herd 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…
![Inside a coronavirus vaccine trial at Imperial College | Covid-19 vaccine update | LBC Inside a coronavirus vaccine trial at Imperial College | Covid-19 vaccine update | LBC](https://www.vitaminrush.com/wp-content/uploads/2020/07/1594906504_maxresdefault-1170x508.jpg)
Herd 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…