laura: shocking that the pfizer ceo doesn t want to put an end. joining me now is doctor the yale school of epidemiology. doctor is, what you make of this? it is a weak variant but no, we don t want it to spread. it s a week variant, not wrong about it being more transmissible. it s less transmissible. the fact is the transmissibility index has been studied by a very smart professor in france, who calculated that it transmits ability is comparable to the delta variant and it is about a third of what delta is. it s less transmissible than delta. in fact we have a lot of herd immunity in the united states. perhaps two-thirds of americans have had covid. it s not going to be fertile ground to spread against adult appeared as much as we might want to because it is so mild,