HHS told Reuters patient had returned from El Salvador but beef industry said person had traveled from Guatemala

The US Department of Health and Human Services (HHS) on Sunday reported the first human case in the US of travel-associated New World screwworm, a flesh-eating parasite, from an outbreak-affected country.

The case, investigated by the Maryland department of health and the US Centers for Disease Control and Prevention (CDC), was confirmed by the CDC as New World screwworm on 4 August – and involved a patient who returned from travel to El Salvador, an HHS spokesperson, Andrew G Nixon, said in an email to Reuters.