The Dean Clinic in Madison, Wisconsin, is in the process of tracking down hundreds of patients after a nurse may have exposed them to HIV and hepatitis, The Huffington Post reports. Clinic officials said a nurse working between 2006 and 2011 may have exposed 2,345 patients to HIV, as well as hepatitis B and C, by improperly using an insulin demonstration pen (which looks like a hypodermic needle) on them instead of on an orange or a pillow to show patients how to use the device. Clinic officials said that patients are probably not in any danger but recommended they be tested for HIV and hepatitis.

To read The Huffington Post article, click here.