http://www.newsweek.com/long-covid-stem-cell-treament-not-fda-regulated-1838282

Dozens of health clinics across the country are selling unauthorized stem cell treatments purported to prevent and treat the side effects of COVID-19.

Thirty-eight businesses serving around 60 clinics in the United States, Mexico, and elsewhere are providing stem cell treatments and exosome therapies, most of which also claim to treat Long Covid, according to a new paper in the journal Stem Cell Reports.