Five people in the United States, all of whom recently traveled from Wuhan, China, have been diagnosed with the new coronavirus, officials of the federal Centers for Disease Control and Prevention said on Sunday.

Axar.az reports citing Reuters that the count includes new patients identified over the weekend in the Los Angeles and Phoenix areas, as well as cases reported earlier in Chicago and Seattle.

Another 25 people have tested negative for the illness, but at least 100 more possible cases are being investigated, Nancy Messonnier, director of the CDC’s National Center for Immunization and Respiratory Diseases, said in a conference call with reporters.