Half Concentration Dose News Today

If you have one shot j&j, and what is the right dosing interval, two months? six months? we dont know. that is number one. what about moderna, and you need the third dose? a half concentration dose or the full concentration dose? we dont know. mixing and matching? we havent levied a recommendation yet here in the united states of mixing and matching johnson & johnson and moderna or pfizer, and so there are critical unknowns here right now, geoff. the only known that we do know is that if you are...