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C.D.C. Considers Ending 5-Day Isolation Period for Covid

Climate Change Drives New Cases of Malaria, Complicating Efforts to Fight the Disease

U.S. Life Expectancy Creeps Up as Covid Deaths Fall

Drug-Resistant Bacteria Tied to Eyedrops Can Spread Person to Person

AstraZeneca’s Covid Vaccine May Have Posed a Higher Heart Risk for Young Women, Study Shows

African Countries Made Huge Gains in Life Expectancy. Now That Could Be Erased.

For Many Older Americans, the Pandemic Is Not Over

Fentanyl Test Strips Highlight Rift in Nation’s Struggle to Combat Drug Deaths

Rise in Deaths Spurs Effort to Raise Alcohol Taxes

Don’t Blame Monkeys for Monkeypox, W.H.O. Says After Attacks

F.D.A. Set to Propose Lower Nicotine Levels in Cigarettes

Where Death Rates Rose the Most During the Pandemic

Death Toll During Pandemic Far Exceeds Totals Reported by Countries, W.H.O. Says

India Is Stalling the W.H.O.’s Efforts to Make Global Covid Death Toll Public

Trying to Solve a Covid Mystery: Africa’s Low Death Rates

Alcohol-Related Deaths Spiked During the Pandemic, a Study Shows

Hong Kong’s high death rate shows the importance of vaccinating the elderly.

U.S. caseloads fall below the Delta peak.

Multiple myeloma is a rare cancer that seems to strike at random.

Deaths from tuberculosis rose in 2020, for the first time in a decade, the W.H.O. says.