More ELB West Nile Mosquitoes In Area b/w Bellflower-Studebaker, 405-Atherton Prompt L.A. County Vector Control + UC Davis + CA Dept. of Health + Fed'l CDC Experts To Schedule July 21 In-Person Meeting On Issue
(July 20, 2005) -- LBReport.com has learned that a street gutter study of the ELB area bordered by Atherton St., Willow St., Bellflower Blvd. and Studebaker Rd. has recently turned up seven West Nile Virus positive mosquito "pools" (multiple mosquitoes aggregated for lab testing), plus a West Nile positive pool from an underground storm drain system...all within the area previously identified by the Greater L.A. County Vector Control District (GLACVCD) south of the 405 freeway.
LBReport.com has further learned that the data have prompted officials from the Greater L.A. County Vector Control District, UC Davis (experts in mosquito borne viruses), the CA Dept. of Health Services and the U.S. Centers for Disease Control to schedule an in-person meeting locally (nearby) on the matter on Thursday July 21.
The de facto summit of public health and mosquito control officials is expected to discuss the ELB data and actions that may be in taken locally in response.
This story is developing as we post. Check back with LBReport.com on July 21 for further information which will be posted as newsworthy.
On July 7, as previously reported by LBReport.com, GLACVCD issued a release indicating it found an above-normal infectivity rate for West Nile Virus among mosquitoes collected within ELB zip code 90815 in the area between Bellflower Blvd. and Studebaker Rd. and from Willow St. to Atherton St. The agency urged residents "to take extra precautions and protect themselves" as well as undertaking additional measures of its own and said it is posting warning signs in all public areas in the 90815 zip code.
GLACVCD District Manager Jack Hazelrigg said in the release, "Residents in this area need to be aware of the increased mosquito activity and take precautions when active outdoors and make sure they do not have standing water on their property."
On July 15, LBReport.com reported on a map prepared by GLACVCD staff showing locations within the agency's service area (east of Lakewood Blvd., north of PCH) where WNV infected mosquitoes have been found this year. It indicates that parts of ELB, particularly south of the 405 freeway through part of zip code 90815 and southward into the Alamitos Bar Marina area, have experienced a number of mosquitoes confirmed positive for WNV this year.
WNV mosquitoes in GLACVCD area to July 14, 2005. Source: GLACVCD
[The map shows WNV-positive mosquito pools in the area handled by GLACVCD; the other half of LB (west of Lakewood Blvd. + parts south of PCH) is handled by LB's Dept. of Health, except for LB's NW corner which is handled by Compton mosquito control.]
The WNV mosquitoes in the Alamitos Bay Marina area led GLACVCD to conduct pre-dawn ground foggings in late June in the Bixby oil field sump/unrestored wetlands area and nearby LB Marketplace. The procedure, which requires very specific weather conditions to conduct effectively, targets adult mosquitoes with an ultra low volume of synthetic pyrethroid, similar to pyrethrum derived naturally from chrysanthemum flowers.
GLACVCD Scientific Technical Services Director Minoo Madon tells LBReport.com that subsequent tests indicate the ground foggings knocked down mosquito numbers in that area by a significant number.
The agency has continued to urge residents to "protect themselves and their family by playing an active role in mosquito prevention," reminding the public:
Mosquitoes breed in standing water. Eliminate standing water on your property by dumping or draining water in neglected swimming pools, ponds, rain barrels, discarded tires, buckets, or anything holding water for more than a few days. This will stop the mosquito life cycle.
Wear long-sleeve shirts and pants when outdoors, especially at dusk and dawn when mosquitoes are active.
Use mosquito repellent containing DEET.
Keep tight-fitting screens on doors and windows to prevent mosquitoes from entering homes.
West Nile Virus spreads when mosquitoes bite birds infected with the virus (through a previous bite from an infected mosquito) and then bite people. Authorities say most people bitten by a West Nile infected mosquito show few symptoms or no symptoms, but for reasons still not completely understood about 1 in 10 or 15 may develop serious, potentially life threatening neurological conditions such as encephalitis and meningitis.
Last year, an elderly ELB woman (area Clark/Wardlow) died and 15 other LB residents were confirmed to have contracted the virus.
GLACVCD handles mosquito abatement in roughly half of LB: ELB areas north of PCH and east of Lakewood Blvd. LB's Dept. of Health and Human Services handles most of the other half except for the NW corner of the city, handled by Compton.
"Symptoms of WNV infection typically begin between 7 to 14 days following the bite of an infected mosquito, and consist of fever, muscle and joint aches, fatigue, headache, and other flu-like symptoms. Elderly and immune suppressed individuals are at much greater risk for developing serious WNV illness such as encephalitis (inflammation of the brain)," LB's Health Dept. said in a previous written release, which added:
Public Health Officials are continuing to monitor and treat public areas to prevent the spread of infection in Long Beach and urge residents and business owners to protect themselves and their neighbors by following a few simple guidelines:
- Remove pools of standing or stagnant water, which provide a breeding ground
for mosquitoes. Some common sources of stagnant water are debris piles,
buckets, barrels, kid’s toys, and tire swings. Mosquitoes need water to complete
their life cycle, and they breed most actively in stagnant water.
- Clear gutters and drains of standing water.
- Change water in birdbaths frequently.
- Maintain swimming pools and spas with proper filtration and chlorination levels.
Green or dirty pools can breed thousands of mosquitoes in a week’s time,
unnecessarily increasing the population’s risk of contracting WNV.
- Limit the watering of lawns and outdoor plants to twice a week to avoid run off to
gutters and around sprinklers.
- Limit your time outdoors when you notice mosquito activity primarily at dusk and
dawn. If you remain outdoors wear clothing that provide more skin coverage such
as long sleeved shirts and pants.
- Use mosquito repellents containing 10-30% DEET when outdoors and especially
between dusk and dawn. The repellent should be sprayed on clothing and
exposed skin. Residents should follow instructions on the label. Consult with
your child’s pediatrician for appropriate concentrations to be used on children
under the age of two. Some non-DEET repellent products, which are intended
to be applied directly to the skin, may also provide protection from mosquito
bites. However, because studies have suggested that other products do not offer
the same level of protection, or that protection does not last as long as the
products that contain DEET, the CDC recommends that products that contain
DEET should be used when possible.
- Make sure that doors and windows have tight fitting screens and are in good
American crows and other birds are susceptible to WNV infection, and may be carriers
of the virus, which can infect mosquitoes. Residents are encouraged to report dead
birds by calling 1-877-WNV-BIRD.
Because of State of California Department of Health Services (DHS) policy, if authorities do not pick up the bird within 24 hours, residents are being advised to dispose of the bird remains. Residents are advised to not handle dead birds with their bare hands. A shovel, cardboard or plastic bag can be used to handle the bird, and it should be placed in a plastic trash bag for disposal.
If you have any questions regarding mosquito control and monitoring measures in Long
Beach, contact the DHHS’ Vector Control Program at 570.4132 or visit
To report standing curbside water that has been present for longer than two days,
please call the Vector Control Program or the City of Long Beach Public Works at
Further information about the WNV may be obtained at the State of California
Department of Health Services website at www.westnile.ca.gov , or at the Federal Centers
for Disease Control and Prevention website at www.cdc.gov/ncidod/dvbid/westnile
Map Shows ELB, Alamitos Bay Marina Areas Had Concentrations Of West Nile Mosquitoes This Year, Prompting Forceful Vector Control Agency Response
LB Health Dept. Urges West Nile Precautions During July 4 Holiday; Agency Says It's Increased Anti-Mosquito Efforts
Greater L.A. County Vector Control Does 2 a.m.-5 a.m. Ground Foggings To Kill Adult Mosquitoes In Bixby Oil Field/MarketPlace Areas
Uh-Oh: LB's First '05 West Nile Positive Mosquitoes Found
Oh $%#!: West Nile Infected Dead Crow Found In ELB Zip Code 90815
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