Pop-up testing sites have cropped up on street corners, in parking lots and on shopping properties across the country, but health and legal experts say many of these are unregulated and could be rife for nefarious activities like identity theft.
In the last few weeks, legislators and attorneys general in several states including Illinois, Maryland, California, Texas and Pennsylvania have said they will be investigating and introducing regulatory legislation overseeing these operations.
Numerous illegal, unapproved and unsanitary sites have been cautioned by state officials nationwide.
Outside of St. Louis, a Covid testing site set up at a mall parking lot and was asking people to provide Social Security and passport ID numbers when registering for tests. It was shut down by police, who later urged anyone who visited the site to monitor their credit reports for fraudulent activity.
Get top local stories in San Diego delivered to you every morning. >Sign up for NBC San Diego's News Headlines newsletter.
Read the full story on NBCNews.com.