CD40LG and infection: The death to infection ratio was 0.033% (95% CI: 0.034% to 0.032%) from 22 May to 31 July 2021 (3 weeks for the lag between infection to death) while calculating the seropositivity of IgM antibodies and 0.066% (95% CI: 0.0694 to 0.06309) with the proportion of seropositivity of all the three antibodies as the denominator.