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Updated: 28 min 13 sec ago

In Crises, Vaccines Can Be Stretched, but Not Easily

1 hour 6 min ago
Shortages of shots for yellow fever, polio and other diseases have led to innovative solutions even in very poor countries.

Six Stars, Six Eclipses: ‘The Fact That It Exists Blows My Mind’

1 hour 40 min ago
A handful of other six-star systems have been discovered, but this one is unique.

Do Curfews Slow the Coronavirus?

1 hour 40 min ago
A restriction more often used in natural disasters, or to quell unrest, has never been tested against a pathogen like the virus.

Pfizer Will Ship Fewer Covid-19 Vaccine Vials to Account for ‘Extra’ Doses

Fri, 01/22/2021 - 16:44
After the surprise discovery of an extra dose in every vial, Pfizer executives successfully lobbied the F.D.A. to change the vaccine’s formal authorization language. The company charges by the dose.

Sharon Begley, a Top Science Journalist, Is Dead at 64

Fri, 01/22/2021 - 15:46
Long at Newsweek, she was regarded as one of her generation’s pre-eminent science writers. An “Enlightenment-era figure,” Jon Meacham said.

Pfizer Will Ship Fewer Vaccine Vials to Account for ‘Extra’ Doses

Fri, 01/22/2021 - 15:08
After the surprise discovery of an extra dose in every vial, Pfizer executives successfully lobbied the F.D.A. to change the vaccine’s formal authorization language. The company charges by the dose.

New Virus Variant May Be Somewhat Deadlier, U.K. Warns

Fri, 01/22/2021 - 14:49
The evidence on the fatality rate is worrisome but not yet solid, scientists said. It contrasts with news that Britain is vaccinating its people at a promising pace.

Filing Suit for ‘Wrongful Life’

Fri, 01/22/2021 - 07:31
More Americans are writing end-of-life instructions as the pandemic renders such decisions less abstract. But are medical providers listening?

The Coronavirus Kills Mink. They May Get a Vaccine.

Fri, 01/22/2021 - 06:46
The pandemic has been a powerful reminder that there is no clear barrier between viruses affecting animals and people.

Covid-19 Kept Tourists Away. Why Did These Seabirds Miss Them?

Fri, 01/22/2021 - 06:18
When travel restrictions stopped bird-watchers from visiting a Swedish island, hidden ecosystem dynamics were revealed.

Restoring Environmental Rules Rolled Back by Trump Could Take Years

Fri, 01/22/2021 - 02:00
President Biden has promised to reinstate more than 100 rules and regulations aimed at environmental protection that his predecessor rolled back. It won’t happen overnight.

F.D.A. Approves Monthly Shots to Treat H.I.V.

Thu, 01/21/2021 - 16:06
A combination of two injectable drugs will provide an alternative to daily pills for people with H.I.V.

Buttigieg’s Climate Promises: What Could He Actually Do?

Thu, 01/21/2021 - 15:32
The Transportation Department, which holds sway over planes, trains and automobiles, faces limits on how it spends money. Still, here are five possible steps.

Why Biden Inherited a Covid-19 Vaccine Supply Unlikely to Grow Before April

Thu, 01/21/2021 - 15:09
But with 200 million doses pledged for the first quarter of the year, some experts say President Biden’s plan for 100 million shots in 100 days is far too modest.

Biden Inherits a Vaccine Supply Unlikely to Grow Before April

Thu, 01/21/2021 - 15:09
But with 200 million doses pledged for the first quarter of the year, some experts say President Biden’s plan for 100 million shots in 100 days is far too modest.

The Paris Climate Agreement: What You Need to Know

Thu, 01/21/2021 - 13:35
President Biden’s decision to return to the climate pact fulfills a campaign pledge, but the United States has some catching up to do.

U.S. Vaccine Supply: What to Know

Thu, 01/21/2021 - 11:38
Can President Biden really boost production? Why are governors trying to buy directly from Pfizer? And when will supply exceed demand?

Eli Lilly Claims Drug Prevents Coronavirus Infection in Nursing Homes

Thu, 01/21/2021 - 11:11
A monoclonal antibody protected residents and staff members in facilities where the virus had appeared.

Drug Prevents Coronavirus Infection in Nursing Homes, Maker Claims

Thu, 01/21/2021 - 11:11
A monoclonal antibody protected residents and staff members in facilities where the virus had appeared.

Florida ‘Monkey Whisperer’ Is Charged With Illegal Animal Sales

Thu, 01/21/2021 - 02:30
Jimmy Wayne Hammonds, who runs an exotic animal ranch, illegally sold rare monkeys, prosecutors said.