Diseases, Conditions, Syndromes

A third of US should be considering masks, officials say

COVID-19 cases are increasing in the United States—and could get even worse over the coming months, federal health officials warned Wednesday in urging areas hardest hit to consider reissuing calls for indoor masking.

Diseases, Conditions, Syndromes

Pandemic gets tougher to track as COVID testing plunges

Testing for COVID-19 has plummeted across the globe, making it much tougher for scientists to track the course of the pandemic and spot new, worrisome viral mutants as they emerge and spread.

Diseases, Conditions, Syndromes

Wastewater can reveal how many of us have gotten COVID-19

Since the early weeks of the COVID-19 pandemic in the United States, a group of Yale researchers has diligently tracked the virus via a useful but decidedly unglamorous source: sewage.

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