Health Highlights: Dec. 1, 2021

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Tighter rules on COVID tests for foreign travelers. Trying to keep the Omicron variant out of the United States, the CDC plans to shrink the window necessary for a pre-flight negative COVID test from 72 to 24 hours prior to departure. The quick turnaround could have many travelers missing their flights. Read more

‘Ultra processed’ foods linked with second heart attacks, strokes. These foods are ubiquitous in U.S. diets, and a new study finds that high intake significantly increases the risk of another, often fatal, heart attack or stroke. Read more

New York City opens nation’s first overdose prevention sites. A safe, supervised place to take illicit street drugs: These sites have lowered overdose rates in other countries, and on Tuesday New York City opened the first such spaces in the United States. Read more

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