The Rationing of a Last-Resort Covid Treatment
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Outcomes vary widely among hospitals. Overall, however, survival has decreased over time, including at major U.S. and European hospitals. From January to May of...
Covid Lambda Variant of Peru: What Scientists Know
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Viruses evolve. SARS-CoV-2, the virus that causes Covid-19, is no exception. So the emergence of variants is no surprise, and not every new genetic...
A Covid Test as Easy as Breathing
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People with diabetes, for instance, may have breath that smells fruity or sweet. The odor is caused by ketones, chemicals produced when the body...
Fitbits Detect Lasting Changes After Covid-19
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Last spring, when the nation’s Covid-19 cases were soaring and tests were in short supply, some scientists wondered whether a new approach to disease...
In Reversal, F.D.A. Calls for Limits on Who Gets Alzheimer’s Drug
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Under fire for approving a questionable drug for all Alzheimer’s patients, the Food and Drug Administration on Thursday greatly narrowed its previous recommendation and...
A New Alzheimer’s Drug Offers More Questions Than Answers
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Such doctors face “a dilemma,” Dr. Karlawish said, “a moment when there’s no decision that resolves all the uncertainties and settles the ethical concerns.”“It...
F.D.A. Requests Federal Investigation of Alzheimer’s Drug Approval
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The Food and Drug Administration on Friday called for a federal investigation of the process that led to the approval of a new drug...
Scientists Press Case Against the Covid Lab Leak Theory
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In the latest volley of the debate over the origins of the coronavirus, a group of scientists this week presented a review of scientific...
C.D.C. to Issue New School Guidance, With Emphasis on Full Reopening
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Others, including some who have been highly critical of the C.D.C.’s past school guidance, praised the new guidelines.“For the first time, I really think...
Helping Runners With Long Covid Get Back on Their Feet
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Penn developed a physical therapy program, which varies according to the severity of each patient’s symptoms. “For some patients who were really seriously affected...
