I know there aren't 'that many' people on here from southern California but I thought I'd pass this along:
A resident of Santa Ana, Calif (orange county) tested positive for flea-borne typhus:
Flea-borne typhus also known as Endemic typhus, and Murine typhus, is transmitted by fleas. It is caused by the bacteria, Rickettsia typhi, and Rickettsia felis, found in infected fleas and their feces. Both rickettsiae are transmitted transovarily (the female fleas transmit the disease to their offspring).
more info: http://www.ocvcd.org/typhus.php