Diagnosis and treatment

FILE - In this Nov. 8, 2018 file photo, the U.S. Medicare Handbook is photographed in Washington. Medicare’s new prescription drug plan finder has a glitch that can steer unwitting seniors to coverage that costs much more than they need to pay. (AP Photo/Pablo Martinez Monsivais)

FILE - This May 26, 2009 file photo shows a printout from an electrocardiogram machine in Missouri. Doctors are reporting that novel drugs may offer fresh ways to reduce heart risks beyond the usual medicines to lower cholesterol and blood pressure. One new study found that heart attack survivors benefited from a medicine long used to treat gout. Gene-targeting medicines also showed promise in studies discussed Monday, Nov. 18, 2019, at an American Heart Association conference in Philadelphia. (AP Photo/Jeff Roberson)

FILE - In this June 27, 2012 file photo, a patient uses an oral test for HIV, inside the HIV Testing Room at the Penn Branch of the District of Columbia Department of Motor Vehicles, in southeast Washington. Free mail-order HIV tests for high-risk men offer a potentially better strategy for curbing disease spread than usual care, according to a U.S. government study published Monday, Nov. 18, 2019, in JAMA Internal Medicine, that resulted in many more infections detected - including among friends with whom recipients shared extra kits. (AP Photo/Jacquelyn Martin, File)

FILE - In this June 15, 2018, file photo, pharmaceuticals are seen in North Andover, Mass. Feeling a new urgency as the impeachment probe advances, the White House is ramping up its push to get a bill through Congress that curbs prescription drug costs. President Donald Trump’s top domestic policy adviser says the effort has advanced beyond anything seen in years even as he acknowledges the “current complications.” (AP Photo/Elise Amendola, file)

FILE - In this July 1, 1960 file photo, a chemist works in laboratory in Cambridge, Mass. For decades, scientists have used "statistical significance" to estimate whether their results are reliable or just flukes. It’s long been criticized, but 2019 has brought two high-profile calls to get rid of it entirely. (AP Photo/Peter J. Carroll)

This undated image provided by Novartis shows bottles of Novartis’s Adakveo. U.S. regulators have approved the new sickle cell disease medicine that can prevent extremely painful, dangerous “crises” in which misshapen blood cells clump together, reducing blood and oxygen flow. (Novartis via AP)

M. Russell Ballard, a senior leader of The Church of Jesus Christ of Latter-day Saints and acting president of the Quorum of Twelve Apostles, speaks during an interview, Friday, Nov. 15, 2019, at the Associated Press headquarters in New York. (AP Photo/Emily Leshner)

FILE - This undated photo provided by Amarin in November 2018 shows a capsule of the purified, prescription fish oil Vascepa. On Thursday, Nov. 14, 2019, government health advisers recommended broader use of the prescription-strength fish oil drug to prevent heart attack, stroke and other life-threatening health problems. (Amarin via AP)

This 1971 microscope image made available by the Centers for Disease Control and Prevention shows Neisseria gonorrhoeae bacteria, which causes the sexually transmitted disease gonorrhea. In a report released Wednesday, Nov. 13, 2019, the Centers for Disease Control and Prevention estimated about 36,000 Americans died from drug-resistant infections in 2017 _ down about 18% from an estimated 44,000 in 2013. Though deaths may be going down, non-fatal infections increased nationally from 2013 to 2017, from 2.6 million to 2.8 million. Dramatic increases in drug-resistant gonorrhea, urinary tract infections, and group A strep were largely to blame. (CDC via AP)

Dr. Hassan Nemeh, Surgical Director of Thoracic Organ Transplant, shows areas of a patient's lungs during a news conference at Henry Ford Hospital in Detroit, Tuesday, Nov. 12, 2019. A Henry Ford Health System medical team performed a double lung transplant for a patient whose lungs were irreparably damaged from vaping. (AP Photo/Paul Sancya)