Los Angeles County Seeing ‘Unprecedented’ Number of Mosquito-Borne Disease Cases, Officials Warn

Los Angeles is ‘a region where dengue has not previously been transmitted by mosquitoes,’ authorities say.

Mountains are seen in the distance behind the downtown skyline in Los Angeles on March 2, 2023. Frederic J. Brown/AFP via Getty Images

The Los Angeles County Department of Public Health confirmed it is investigating additional cases of the dengue virus that was locally acquired in the city, according to a statement on Wednesday.

Two additional cases were found in Baldwin Park and among those who have “no history of travel to areas where dengue is endemic prior to their symptoms,” the health agency said.