Increase in Reports of Strongyloides Infection - Los Angeles County, 2013-2014

During the 1990s, reports of infection with the nematode (roundworm) Strongyloides stercoralis submitted to the Los Angeles County Department of Public Health (LACDPH) ranged from 40 to 50 per year, but by 2000, reports had decreased to five per year; in 2006, Strongyloides infection was removed from the LACDPH reportable disease list. Currently, it is only reported at the discretion of Los Angeles County clinicians and laboratories as an unusual disease occurrence. LACDPH currently only monitors case counts and does not investigate reported Strongyloides cases. During 2013-2014, an increase in Strongyloides cases occurred, with 43 cases reported.