sharfstein: certainly it is, in a lot of places.t perfectly be a zero-sum game, but there is a lot of competition. the health care system does step in to lend a hand when you have major projects like vaccination, but the health care spit -- the health care system is spilling over in parts of our country right now. similarly, the public health system tries to help out the health care system, through planning, through messaging and testing. it is the same staff. there is no extra staff for vaccinations. they have all been pulled to help with the response. guy: thank you for your time, dr. sharfstein, johns hopkins university bloomberg school of public health vice dean. markets are quite well. up next, we will carry on the conversation. more bloomberg surveillance. this is bloomberg. ♪ ♪ federal banks are -- "central banks no sign -- central are showing no signs they want to stop. >> it will be v-shaped for some. it may not be v-shaped for others. >> next year is going to be too hot. >> this is "bloomberg surveillance" with tom keene,