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Can You Become Immune to the Coronavirus?

How to Prepare for the Coronavirus

Another H.I.V. Vaccine Fails a Trial, Disappointing Researchers

The Flu Season May Yet Turn Ugly, C.D.C. Warns

W.H.O. Continues Emergency Status for Ebola Outbreak in Congo

Polio Cases Surge in Pakistan and Afghanistan

Where Will Measles Break Out Next? Chicago, Los Angeles or Miami, Scientists Predict

Robert F. Kennedy Jr.’s Brother and Sister Accuse Him of Spreading Misinformation on Vaccines

Measles Cases Surpass 700 as Outbreak Continues Unabated

Scientists Thought They Had Measles Cornered. They Were Wrong.

The Flu Is Widespread in the U.S., and It’s Not Too Late to Get Vaccinated

An Island Nation Starts an Experiment: Vaccines Delivered by Drone

Why Don’t We Have Vaccines Against Everything?

Florida Child Dies From Flu, the First Young Death Reported in the U.S. This Season

Ebola Outbreak in Congo Has Ended, W.H.O. Says

For the First Time, a Female Ebola Survivor Infects Others

Measles Cases in Europe Quadrupled in 2017

Already ‘Moderately Severe,’ Flu Season in U.S. Could Get Worse

Measles Deaths Fall to a Record Low Worldwide

Drug Company Under Fire After Revealing Dengue Vaccine May Harm Some