Public health

A passenger of a bus coming from Romania, leftt, undergoes a voluntary Covid-19 blood test, at the Tiburtina bus station, in Rome, Wednesday, July 29, 2020. The Lazio region, which includes Rome, is beginning voluntary tests on passengers arriving in Italy from Romania, Bulgaria and Ukraine, with a blood test on finger with results in 8 minutes followed by swab test if result is positive. (AP Photo/Riccardo De Luca)

FILE - In this March 1, 2017, file photo, then Elon Trustee Louis DeJoy is honored with Elon's Medal for Entrepreneurial Leadership in Elon. N.C. U.S. Sen. Joe Manchin and union officials say the U.S. Postal Service is considering closing post offices across the country, sparking worries ahead the anticipated surge of mail-in ballots in the 2020 elections. Manchin on Wednesday, July 29, 2020 said he has received numerous reports from post offices and colleagues about service cuts or looming closures in West Virginia and elsewhere, prompting him to send a letter to Postmaster General Louis DeJoy asking for an explanation. (Kim Walker/Elon University via AP, File)

FILE - This Thursday, Aug. 29, 2019, file photo, shows the Pac-12 logo during the second half of an NCAA college football game between Arizona State and Kent State, in Tempe, Ariz. The Pac-12 has set Sept. 26 as the start of its 10-game conference-only football schedule. The Pac-12 announced three weeks ago it would eliminate nonconference games for its 12 member schools. (AP Photo/Ralph Freso, File)

FILE - In this Sept. 3, 2017, file photo, tennis fans move in and out of Arthur Ashe Stadium during the fourth round of the U.S. Open tennis tournament in New York. As coronavirus cases spike in other parts of the country a month before the U.S. Open is supposed to start in New York, the U.S. Tennis Association said Friday, July 31, 2020, it “continues its plans” to hold its marquee event and another tournament beforehand. (AP Photo/Frank Franklin II, File)

Thousands of bikers rode through the streets for the opening day of the 80th annual Sturgis Motorcycle rally Friday, Aug. 7, 2020, in Sturgis, S.D. (AP Photo/Stephen Groves)

FILE - In this July 23, 2020 file photo, health care workers prepare a COVID-19 test sample before a person self-administered a test at the COVID-19 drive-thru testing center at Miami-Dade County Auditorium in Miami. Racial disparities in the the U.S. coronavirus epidemic extend to children, according to two sobering government reports released Friday, Aug. 7. One of the Centers for Disease Control and Prevention reports looked at hospitalizations of children with COVID-19. Hispanic children were hospitalized at a rate eight times higher than white kids, and Black children were hospitalized at a rate five times higher, it found.(David Santiago/Miami Herald via AP)

FILE - In this March 13, 2020, file photo, students at Stuyvesant High School leave after classes in New York. New York Gov. Andrew Cuomo said Friday, Aug. 7, 2020 that he would allow children statewide to return to classrooms for the start of the new school year, citing the state's success in battling the coronavirus pandemic. (AP Photo/Bebeto Matthews, File)