dr. schaffner, it's good to see you again. i want to ask you as a, a medical professional and if someone with experience at the national level of u. s. public health policy. how credible are china's numbers from shay, hi, or how incredible can we take them to be 3 deaths in a population of 26000000? that's under walk dale. ah, well break. it suddenly raises eyebrows doesn't he? and it puts one in memory of former president reagan's comment trust, but verify. so i'm a little bit dubious about that. we recognize that only crohn is less serious and that this is a highly vaccinated chinese population. but nonetheless, only 3 deaths in that huge city seems curious and police. i mean, yeah, trust but verify. you know, those were the days when you could actually go in and count the number of nuclear warheads in the soviet union in the us. we can't go in to china and get free access to information there, so we really can't ever know for sure what the real situation is. they are covered wise, can we? no, i don't think we can, but it's

schaffner specializes in diseases and says the spike is unusual but be -- but not surprising. >> thegoing to indoor activities. >> reporter: another factor in the spread of the flu is that this year's vaccine offered little protection against infection. the cdc found in a study last month the shot was just 16% effective at preventing mild or moderate cases. >> this year's flu shot didn't perform all that well, and that's because it was off target from the actual virus just enough so that its effectiveness was much reduced. >> reporter: doctors say the end is in sight and that as summer approaches flu will go back into hibernation. danya bacchus, cbs news, los angeles. >>> coming up on "cbs mornings," ahead of earth day we're launching our earth 365 series this morning. ben tracy shows how nuclear power could be ready for a comeback. >>> plus, singer/songwriter janelle monae stops by the times square studio to tell us about her book "the memory librarian." >>> and in our special series "kindness 101," steve hartman introduces us to a boy who has become a role model for compassion. >>>

well, let me ask you, dr. schaffner, on next week, i'm flying to the u. s. and i still have to get a test covered test done 24 hours before departure and it's to have to be vaccinated, and i will still have to wear my mask flying to the us all of that. and yet when i get to the u. s i may not have to even wear a mask. that does just doesn't make common sense, does it? i don't care either. requirement for vaccination, i think is reasonable. the others i think, could be easily set aside. after all, putting people who have a positive test outside the u. s. is a little like asking somebody not to pour a glass of water into a swimming pool. we have plenty of the buyers here already. yeah. that, that, that is a very good point. 30 chevron is always it's good talk with you and let's hope that we don't get too many glasses being spilled this summer. good talking with you. thank you. thank you, brian. all right, the day is almost done. the conversation continues online. you'll find this on twitter either w news. you can follow me on twitter at brent golf t, the every