MERS-CoV can infect a person regardless of his/her health status or age group. Recent travelers returning from the Arabian Peninsula and neighboring countries who develop severe acute respiratory infection should be tested for MERS-CoV. Elderly people and those with underlying medical conditions such as diabetes, heart disease, or liver disease are at risk of severe infection. Close association with any person infected with MERS-CoV, as in caregivers, health-care workers, or household contacts, is a major risk factor. Contact with camel body fluids, respiratory secretions, raw or undercooked meat, and unpasteurized dairy products likely also poses a major risk of transmission to humans in the Arabian Peninsula and surrounding countries. Thus, those who work in these areas and handle live camels, or camel's meat or milk are at risk, including veterinarians and those who work at markets or race tracks, and those who slaughter, butcher, milk, and cook raw camel products. Cooked meat and pasteurized milk is safe to handle and consume. Not all camels may transmit the disease; Bactrian (Mongolian) camel herds currently show no infections with MERS, but researchers are not sure these camels have ever been exposed to the virus.