that s one of the concerns, i did want to ask you something we reported on. pfizer reporting o f a study for a bill, oral medication that sometimes down the road could be taken if you think you have been exposed to covid, it could mitigate the effect and what more do you know about that? is it promising in your eyes. it s a direct, it blocks the replication components of the virus. it s not an anty body. it s similar to the thing that we developed very successfully over the years for hiv and hepatitis c.