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Is the Coronavirus in Your Backyard?
There are many theories, none entirely satisfying. An infectious hunter might encounter a deer, Dr. Mubareka noted, but “if they’re…
Ukraine Gave Up Nuclear Weapons 30 Years Ago. Today There Are Regrets.
At the end of the Cold War, the third largest nuclear power on earth was not Britain, France or China.…
In New York City Sewage, a Mysterious Coronavirus Signal
“To have something in a sewershed that you’re detecting, you need a fair bit of it around,” said Dr. Adam…
Why Nasal Covid Vaccines May Make Better Boosters
HYDERABAD, India — On the outskirts of this centuries-old Indian city, a world away from its congested roads and cacophony,…
A Cancer Treatment Makes Leukemia Vanish, but Creates More Mysteries
After the CD8 cells did their job, they remained in the blood but, unexpectedly, they turned into CD4 cells. And…
Math That Helped Solve Fermat’s Theorem Now Safeguards the Digital World
Defenses against digital snoopers keep getting stronger. Encryption is what keeps communications safe when you use Signal and other messaging…