Melissa Sandgren, a registered nurse for Utah County, answers a question from one of the call center operators on Wednesday, Jan. 10, 2018, at the Utah County Health Department offices, in Provo, Utah. Thousands of people may have been exposed to hepatitis A in Utah amid a widening outbreak that originally spread from a large epidemic in San Diego, health officials said Wednesday. Sandgren was available to answer health questions to assist the staff operating the the call center. (Evan Cobb/The Daily Herald via AP)