President Donald Trump received a cocktail of monoclonal antibodies derived from humans and mice for his COVID 19 infection. This cocktail conferred passive immunity. #monoclonalantibody, #DonaldTrumpCOVID19treatment, #TrumpCoronaivirustreatment, Dr.A.K.Venkatachalam Dr,A.K.Venkatachalam is an orthopaedic surgeon in Chennai, India.