c-span radio app. >> coming up tonight on c-span, q&a as next with historian and author elena conis talking about the developments of the polio vaccine in the 1950's and how it relates to current efforts to develop a coronavirus vaccine. later, we hear from british prime minister boris johnson on his country's reopening stages amid the pandemic. after that, european lawmakers deliver statements on police brutality following the death of george floyd who died in police custody. ♪ >> and historic victory has unfolded at the university of michigan. a new medical

c-span's q and a. "washington journal" continues. --t: join in s joining us is dr. william schaffner.ith the numbers courtesy of johns hopkins, 7.8 million confirmed cases worldwide, 400,030 deaths here in the u.s.. news over the last 24 hours from dr. anthony fauci saying there is a possibility that we could avoid a second wave if we do things right. can you eliminate that? guest: i think what he is talking about is the second wave consequence of opening up right now. that is very important. we are seeing all over the country increases in cases as well as increases in hospitalization. , but note going out being attentive to social distancing wearing masks. here are two examples. something that happened to me yesterday, shortly after 7:00, i went to the supermarket most of older and there were over 90% of them were moving -- were wearing masks. however, later i went to a coffee shop located right across the university. most of the people there where in their 20's and 30's, and 90% of them were not wearing masks. they were observing social distancing, but they were not wearing masks. ,

c-span radio app. >> sunday night on q&a, university of california at berkley historian of medicine, elena konis, author of "vaccine nation," on the lessons the polio vaccine in the 1950's can teach us about a covid-19 vaccine. >> we will face distribution problems. we will face problems of equity. even if we have enough vaccine for everybody, there will be those who have the privilege to say, i'm not comfortable getting it until you know, five million people have been ax nate -- vaccinated and there'll be those who will say i have to get vaccine because i have to go to work and i have to make sure that i am safe and i can provide for my family. so i guarantee that we will see problems with equity. we can't guarantee anything about the future but this is one thing i feel concerned about. >> watch sunday night at p