County of Los Angeles
Department of Public Health
Acute Communicable Disease Control
313 N. Figueroa Street, Room 212
Los Angeles, CA 90012
Phone: (213) 240-7941
Fax: (213) 482-4856
Zika virus disease (or
Zika) is spread to people mostly through mosquito bites of the
Aedes mosquito. Infected men can also spread Zika to their sexual partners.
According to the Centers of Disease Control and
Prevention (CDC), the most common symptoms of Zika virus
disease are: fever, rash, joint pain, and conjunctivitis
(red eyes). Other symptoms include muscle pain,
headache, pain behind the eyes, and vomiting. The
illness is usually mild with symptoms lasting from
several days to a week. Severe disease requiring
hospitalization is uncommon. Deaths from Zika have not
of Zika have occurred in areas of the Latin Americas,
and tropical Africa, Southeast Asia, and the Pacific
Islands. Because the Aedes species mosquitoes that
spread Zika virus are found throughout the world,
including the US, it is likely that outbreaks will
spread to new countries. In May 2015, the Pan American
Health Organization (PAHO) issued an alert regarding the
first confirmed Zika virus infections in Brazil. In
December 2015, Puerto Rico reported its first confirmed
Zika virus case.
transmitted Zika has not been reported in the US, but
cases of Zika have been reported in returning travelers.
the recent outbreaks in South America and the Pacific
Islands, the number of Zika cases among travelers
visiting or returning to the US will likely increase.
These imported cases may result in local spread of the
virus in some areas of the US.
Reporting Mosquito Breeding Sites and Areas with Water Accumulation
Acute Communicable Disease Control is responsible for monitoring and addressing human
health problems in Los Angeles County, but is not directly involved with mosquito control
activities. This important action is under the control of the county’s five independent
mosquito control (abatement) districts. Beyond our county, the Health Departments of
Long Beach and Pasadena also operate their own mosquito control programs.