A clinic in Las Vegas may have infected 40,000 people with Hepatitis C virus and HIV due to improper medical procedures, US health officials reported.
An investigation determined that "unsafe injection practices related to the administration of anaesthesia medication might have exposed patients to the blood of other patients," CNN reported.
Authorities advised all patients who were injected with anaesthesia from March 2004 to January 2008 at the Endoscopy Center of Southern Nevada to get tested for Hepatitis and HIV/AIDS.
Hepatitis C is a blood-borne infectious disease that inflames the liver and is often asymptomatic but ensuing chronic hepatitis can result later in cirrhosis and even liver cancer.