Californian is infected with a rare tick-borne illness. What to know
A Northern Californian has been confirmed as the fourth-ever person diagnosed with a newly recognized and rare tick-borne disease that causes symptoms similar to Rocky Mountain spotted fever. The California Department of Public Health confirmed the latest case of Rickettsia lanei bacteria in a patient who was diagnosed in April of this year. Two other California cases were reported in 2004 and 2023. Public health officials told The Times that the infected person “was seriously ill, hospitalized and has since been discharged and is recovering.” It is unclear how long the person was in the hospital or what their symptoms were. The state agency said it could not disclose the home county of the person but confirmed the infected person lived and worked in Northern California. Rickettsia lanei comes from the spotted fever group Rickettsia, bacteria transmitted to humans from the bite of an infected tick. In California three types of ticks — the American dog tick (Dermacentor similis), Pacific Coast tick (Dermacentor occidentalis) and brown dog tick (Rhipicephalus sanguineus) — can transmit the bacteria …


