Recommended those who are medically higher risk over 65 or if you have dialysis needs, if you're medically higher risk and under 65, you can get another shot as well. if you got one of these updated shots last winter, if you're over 65 or have a medically higher risk condition, chris, you can get that second shot. >> fair warning to folks. in china, there's a surge of cases, they say it could peak at 65 million cases per week from this xbb variant. how concerned are you about these new variants? are we prepared to handle not just this but any variant that comes our way? >> i'm less concerned a...