very, very likely, but we've been saying for a long time most of us are at some point going to come into contact with someone who's infected and either unvaccinated or vaccinated when that time comes. a really interesting article. just looking at lung tissue. wasn't actually in a real person. in a petri dish. they found in the lung tissue the airways, there was, you said, 70 times higher replication. which could give some explanation how transmissible it is between people, but replicated more slowly in the actual lung tissue itself. might be a clue as to potentially not being as serious. you know we have not concluded definitively it's not as serious as delta. this is preliminary but interesting. we still don't know what is driving this surge. is it -- we do know. a combination of the fact it's more transmissible and evading