Scientist infects himself with Covid-19 TWICE to study antibodies – and says results show that hopes of herd immunity are futile
Dr Alexander Chepurnov, 69, reinfected himself with Covid-19 as part of a test. His second infection was far more serious and required him to be hospitalised. He says hopes for herd immunity are futile due to antibodies falling rapidly. The Institute of Clinical and Experimental Medicine professor studies antibodies
