One expert has outlined the reasons why some people haven’t caught Covid-19 yet, despite having been close contacts.
Wearing masks and being cautious of the virus could just be part of the reason some people have avoided it.
Cliona O’Farrelly, a Professor of Comparative Immunology and Biochemistry at Trinity College Dublin, outlined the possible explanations why some people have not become infected with the virus, despite having been in contact with those who are infected.
