Researchers are trying to crack the code on why some people, despite being exposed to Covid-19 on a number of occasions, don’t contract the virus.
It comes as one woman had been exposed to the virus in a trial-setting and had the virus inserted into her nose, only to test negative.
Phoebe Garrett, a 22-year-old from High Wycombe, England, has knowingly been exposed to Covid-19 four times, including at a party where everyone else tested positive afterwards.
