The Philadelphia Department of Health has closed three dental practices that are said to be operating under unhealthy conditions and could have exposed up to 1,500 patients to diseases, including HIV.
Investigators found staff at three Trieu Family dental clinics at 437 West Chew Avenue, 5427 North 5th Street and 6536 Woodland Avenue reused with needles and poorly cleaned equipment, reports NBC 10 of Philadelphia.
Although the city's health department says the risk of infection is low, he advises patients to contact their doctor and get tested for hepatitis C and B and HIV, according to reports. It may take a year before symptoms appear.
The three practices have been closed since December 7th.
The state health department has launched its own investigation.