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Trillions of Viruses Live in Your Body. A.I. Is Trying to Find Them.

Are Childhood Vaccines ‘Overloading’ the Immune System? No.

‘Imminent Threat’ Found at Boar’s Head Plant 2 Years Before Fatal Listeria Outbreak

What’s in Your Fridge? Here Are Details About the Deli Meat Listeria Recall

U.S. Health Officials Push Back on Idea of New Virus in China

Gonorrhea Is Becoming Drug Resistant. Scientists Just Found a Solution.

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

Tuberculosis, Like Covid, Spreads in Aerosols, Scientists Report

You’re Missing Microbes. But Is ‘Rewilding’ the Way to Get Them Back?

Stop Kissing and Snuggling Chickens, C.D.C. Says After Salmonella Outbreak

Gut Microbes Might Keep Malnourished Children From Growing

Study Finds New Bacterial Strain Can Contaminate Shellfish