Authorities at major airports in New York and California will screen passengers traveling from the Chinese city of Wuhan gripped by the outbreak of a new deadly pneumonia-like virus, which has since spread to Japan and Thailand.

Starting Friday, passengers from Wuhan who arrive at San Francisco, New York and Los Angeles’s main international airports will undergo screening for the symptoms of a novel coronavirus (2019-nCov) that broke out in the Chinese city last month. Officials with the Centers for Disease Control and Prevention (CDC) will carry out the checks, along with Customs and Border Protection (CBP) agents.