Human Healing Foundation sponsored an epidemiological study to establish if any Heterologous Vaccine has partial or full protection against COVID-19. This study with the data of COVID-19 incidence and mortality among various vaccination groups such BCG and bOPV, found that bivalent OPV has such NSE property that has protective value against COVID with pValue <0.0001, hence HHF reccomends to the WHO and Public Health Policy makers to conduct a large clinical trials on establishing the benefit of inducing NSE Herd immunity against COVID-19 to control this pandemic if mass vaccination with bOPV vaccine given to adult population.