Virus

World

Bird Flu Is Our Fault

We don’t yet know if H5N1 bird flu will spill over from animals to infect a large number of humans.…

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Health

Pasteurized Dairy Foods Free of Live Bird Flu, Federal Tests Confirm

But the scope of the outbreak among cattle remains uncertain, and little human testing has been done.

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Health

Federal Officials Find No Live Bird Flu Virus in Initial Milk Tests

The early results suggest that pasteurization is killing the H5N1 virus in milk, something that regulators were not certain of.

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Health

One in Five Milk Samples Nationwide Shows Genetic Traces of Bird Flu

There is no evidence that the milk is unsafe to drink, scientists say. But the survey result strongly hints that…

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World

As a Doctor, I Don’t Fear Covid as I Once Did. But I Carry Its Grave Lessons Forward.

Walking through the intensive care unit is often a lesson in how much there is to fear. Just a few…

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Magazine

Lab Leak Fight Casts Chill Over Virology Research

Scientists doing “gain-of-function” research said that heightened fears of lab leaks are stalling studies that could thwart the next pandemic…

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World

We Should Have Known So Much About Covid from the Start

America has begun to treat Covid-19 like just any other disease — boosters are now arriving on an annual fall…

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Health

Three Vaccines for Fall: What You Need to Know

Here’s who should get the flu, Covid and R.S.V. vaccines, and when.

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Health

F.D.A. Approves Pfizer’s R.S.V. Vaccine for Older Adults

Though agency advisers had some safety concerns, the Pfizer shot is expected to be available before the winter R.S.V. season.

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World

F.D.A. Plans to Allow a Second Updated Covid Booster for Vulnerable Americans

Federal regulators plan to authorize an additional dose for seniors and immunocompromised people in the coming weeks, ahead of the…

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