The future variants/mutations of Sars CovidVirus might just very well adapt to spread and thrive most easily in host humans with the altered immune systems caused by the vaccinations. We need a drug that can keep the virus from entering and replicating inside the bodies of the masses of the vaccinated public. If we could just figure out the mechanism of viral entry and replication. If we could that drug might also prevent the spread of HIV as well. Otherwise Sars Covid might evolve to easily infect much of the vaccinated public.