Shining a Light on the World of Microproteins

From viruses to humans, life makes microproteins that have evaded discovery until now.

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Used in Covid Shots, mRNA May Help Rid the Body of H.I.V.

A new study shows how the technology deployed in Covid vaccines helped scientists coax the virus out of hiding.

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U.S. Cancels Contract With Moderna to Develop Bird Flu Vaccine

Health Secretary Robert F. Kennedy Jr. has repeatedly questioned the safety of mRNA technology, which is used in the company’s shot.

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U.S. Cancels Contract With Moderna to Develop Bird Flu Vaccine

Health Secretary Robert F. Kennedy Jr. has repeatedly questioned the safety of mRNA technology, which is used in the company’s shot.

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What to Know About the Hepatitis A Outbreak in L.A. County

A highly contagious liver infection is surging among groups who are not typically at risk. At least seven people have died.

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Genetic Study Retraces Covid’s Origins in Bats

As China and the United States trade charges of a lab leak, researchers contend in a new paper that the Covid pandemic got its start, like a previous one, in the wildlife trade.

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Upheaval in Washington Hinders Campaign Against Bird Flu

Determined to cut costs and manage communications, the Trump administration is moving too slowly to contain the virus, experts say.

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Measles Outbreaks in Canada and Mexico Bring Grim Prognosis

Surges in Mennonite communities near the U.S. border may complicate containment efforts, experts say.

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As Measles Spreads, Some Doctors See the Virus for the First Time

Providers are getting a crash course in how to recognize and treat an infection as the virus tears through Texas and New Mexico.

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Why Measles Outbreaks May Be the New Normal

Recent Trump administration actions are setting the stage for a measles resurgence, experts fear.

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