The U.S. Center for Disease Control and Prevention has issued a health alert warning travelers to Baja California, Mexico, about Rocky Mountain spotted fever, a potentially life-threatening bacterial infection spread through tick bite.
The CDC said five cases, including three deaths, have been reported in Southern California due to Rocky Mountain spotted fever since July. All affected people had a travel or residence history to Tecate, a city in Baja California, within two weeks of falling sick, officials said.
