Three-quarters of Americans are concerned that a second wave of coronavirus cases will emerge, a new NPR/PBS NewsHour/Marist poll finds. Despite that, groups around the country, including in Michigan, are protesting state lockdowns. President Trump's stance on hydroxychloroquine has made the drug harder to study, according to some scientists. Researchers have been digging into contact tracing data from countries that had early outbreaks. Data suggest high risk activities include large indoor gatherings. Lower risk is going to the grocery store.Plus, what is happening with classroom pets when school is out of session due to the coronavirus. Reporter Sara Stacke's story with photos.You can hear more about the NPR poll on the NPR Politics Podcast on Apple Podcasts, Spotify and NPR One.Find and support your local public radio stationSign up for 'The New Normal' newsletterThis episode was recorded and published as part of this podcast's former 'Coronavirus Daily' format.