Diagnosis and treatment

FILE - This Dec. 16, 2019 file photo shows composer and executive producer Andrew Lloyd Webber attending the world premiere of "Cats" in New York. Webber is making some of his filmed musicals available for free on YouTube. On Friday, the 2000 West End adaption of “Joseph and he Amazing Technicolor Dreamcoat” starring Donny Osmond will be streamable, followed a week later by the rock classic “Jesus Christ Superstar” from the 2012 arena show starring Tim Minchin. (Photo by Evan Agostini/Invision/AP, FIle)

FILE - This Sept. 30, 2019 file photo shows a box of Zantac tablets at a pharmacy in Miami Beach, Fla. On Wednesday, April 1, 2020, U.S. health regulators are telling drugmakers to immediately pull their popular heartburn drugs off the market after determining that a contamination issue with the medications poses a greater risk than previously thought. The warning applies to all prescription and over-the-counter versions of ranitidine, best known by the brand name Zantac. (AP Photo/Wilfredo Lee, File)

In this March 6, 2020 photo, Charlie Campbell, right, walks with his mother, Dorothy Campbell, to visit his father, Gene, who was staying at the time at the Life Care Center in Kirkland, Wash. Charlie Campbell is nearly 13 years sober, but said he has been feeling tested due to stress from having his father now recovering from the new coronavirus in a hospital, and several other sources of worry and stress in his life. (AP Photo/Ted S. Warren)

FILE - In this Feb. 11, 2012, file photo, Texas Tech coach Billy Gillispie celebrates with fans after defeating Oklahoma in an NCAA college basketball game in Lubbock, Texas. Gillispie was named head coach at Tarleton State, taking over a program making the transition from NCAA Division II to Division I. The move Monday, March 30, 3030, came two years after Gillispie had a successful kidney transplant, and eight years after his last Division I job. (Zach Long/Lubbock Avalanche-Journal via AP, File)

FILE - This Monday, March 23, 2020, file photo shows medical supplies and a stretcher displayed before a news conference at the Jacob Javits Center in New York. Health care workers are dreading the prospect of deciding which patients would get a ventilator that could save their lives. (AP Photo/John Minchillo, Fle)

FILE - In this March 28, 2018 file photo, former U.S. Sen. Tom Coburn speaks at a news conference in Oklahoma City. Coburn has died. He was 72. A cousin tells The Associated Press that he died early Saturday, March 28, 2020. Coburn had been diagnosed with prostate cancer years earlier. The Oklahoma Republican railed against federal earmarking and earned a reputation as a political maverick. (AP Photo/Sue Ogrocki, File)

FILE - This undated electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the virus that causes COVID-19. The sample was isolated from a patient in the U.S. Some political leaders are hailing a potential breakthrough in the fight against COVID-19: simple pin-prick blood tests or nasal swabs that can determine within minutes if someone has, or previously had, the virus. But some scientists have challenged their accuracy. (NIAID-RML via AP)

Tourists from the United States wait outside the closed Jorge Chavez International Airport for a member of the U.S. Embassy to escort them to a flight that will fly them back to the U.S., in Callao Peru, Friday, March 20, 2020, on the fifth day of a state of emergency decreed by the government to prevent the spread of the new coronavirus. (AP Photo/Martin Mejia)