This undated, colorized electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the Novel Coronavirus SARS-CoV-2, indicated in yellow, emerging from the surface of cells, indicated in blue/pink, cultured in a laboratory. AP FILE PHOTO WASHINGTON — The National Institutes of Health is beginning a handful of studies to test possible treatments for long COVID, an anxiously awaited step in U.S. efforts against the mysterious condition that afflicts millions.

https://newsinfo.inquirer.net/1810264/brain-fog-and-other-long-covid-symptoms-are-the-focus-of-new-small-treatment-studies

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