Malaria

FILE - This Monday, April 6, 2020 file photo shows an arrangement of hydroxychloroquine pills in Las Vegas. According to a study released on Tuesday, April 21, 2020, the malaria drug widely touted by President Donald Trump for treating the new coronavirus showed no benefit in an analysis of its use in U.S. veterans hospitals. There were more deaths among those given hydroxychloroquine versus standard care, researchers report. (AP Photo/John Locher)

FILE- In this March 14, 2020 file photo, President Donald Trump talks after speaking during a news conference about the coronavirus in the James Brady Briefing Room at the White House in Washington. Trump’s name will be printed on the stimulus checks that the Internal Revenue Service will be sending to tens of millions of Americans around the country. It's an unprecedented move finalized this week. That's according to two officials with knowledge of the decision, who spoke to The Associated Press on Wednesday on the condition of anonymity to discuss internal planning. (AP Photo/Alex Brandon)

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FILE - In this Thursday, April 9, 2020 file photo, a chemist displays hydroxychloroquine tablets in New Delhi, India. Scientists in Brazil have stopped part of a study of the malaria drug touted as a possible coronavirus treatment after heart rhythm problems developed in one-quarter of people given the higher of two doses being tested. Chloroquine and a similar drug, hydroxychloroquine, have been pushed by President Donald Trump after some early tests suggested the drugs might curb coronavirus entering cells. (AP Photo/Manish Swarup, File)

President Donald Trump listens to a question from a reporter as he speaks about the coronavirus in the James Brady Press Briefing Room of the White House, Monday, April 6, 2020, in Washington. (AP Photo/Alex Brandon)

In this March 31, 2020 file photo pharmacist Amanda Frank reaches for a bottle of Hydroxychloroquine at the Medicine Shoppe in Wilkes-Barre, Pa. Some politicians and doctors are sparring over whether to use hydroxychloroquine against the new coronavirus, with many of scientists saying the evidence is too thin to recommend it now. (Mark Moran/The Citizens' Voice via AP, file)

Arizona Gov. Doug Ducey, left, answers a question as he is joined by Arizona Department of Health Services Director Dr. Cara Christ, right, as they provide an update on the coronavirus outbreak during a news conference at the Arizona State Public Health Laboratory Monday, March 23, 2020, in Phoenix. (AP Photo/Ross D. Franklin)

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. (NIAID-RML via AP)

In this photo taken Wednesday, Dec. 11, 2019, residents of the Malawi village of Tomali wait to have their young children become test subjects for the world's first vaccine against malaria. Babies in three African nations are getting the first and only vaccine for malaria in a pilot program. World health officials want to see how well the vaccine works in Malawi, Ghana and Kenya before recommending its wider use.(AP Photo/Jerome Delay)