The Orange County Mosquito and Vector Control District announced an increased risk of flea-borne typhus in Fullerton as the first human case was reported in January.
Orange County Health Care Agency said in an email to the Daily Titan that the number of human cases of flea-borne typhus between 2013 and 2024 ranged from 11 to 34 per year across Orange County.
As of January 2026, the number of human flea-borne typhus cases in Fullerton is recorded at three, totaling up to 37 across the entire county…