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New story in Science and Health from TIME: I Got a J&J Vaccine. Should I Get a Booster Shot as Delta Spreads?

A new study finds genetic variations in Covid patients that could point to better drug treatments.

How does the Delta variant dodge the immune system? Scientists find clues.

15 States Reach a Deal With Purdue Pharma, Moving Toward a $4.5 Billion Opioids Settlement

Delta is now the dominant virus variant in the U.S., the C.D.C. estimates.

New story in Science and Health from TIME: Last Month Was the Hottest June in North America in Recent Recorded History

Fitbits Detect Lasting Changes After Covid-19

A New Alzheimer’s Drug Offers More Questions Than Answers

New story in Science and Health from TIME: City Heat is Worse if You’re Not Rich or White. The World’s First Heat Officer Wants to Change That

New story in Science and Health from TIME: What We Learned About Relationships During the Pandemic

Here’s an excerpt from The Daily about the rise of the Delta variant.

Fauci says he would wear a mask in communities with low vaccination rates.

In France, people with immune problems are given booster shots. Why not in the U.S.?