The West Nile Virus is not just at a distance, it is and has been in the Southern California area, including Long Beach, Cerritos, and San Bernardino. Residents and homeowners should take certain precautions, no need to panic, prevention goes a long way, like wearing insect repellant containing DEET. It is a mosquito-borne virus, and removing and cleaning sources of water in and around your property and neighborhood is important. Very few mosquitos are actually infected, however there is local evidence that the virus has spread since 1999. For starters, please see the following information at the City of Long Beach and City of Cerritos websites at Long Beach and Cerritos. Find additional information at Los Angeles County's site here.