News

Menlo Park: More yellow fever mosquitoes trapped

Three adult yellow fever mosquitoes (Aedes aegypti) and 14 larvae have been trapped in Menlo Park since late August, according to the San Mateo County Mosquito and Vector Control District.


This image of the Aedes aegypti mosquito is from the Centers for Disease Control and Prevention.
As of Oct. 11, inspectors had examined 1,101 homes and collected 246 samples of larvae, district representatives told the Almanac. Yellow fever mosquito eggs were found at four locations, in addition to the first egg found on Aug. 23 at the Holy Cross cemetery off Santa Cruz Avenue.

Aedes aegypti is a 1/4-inch black and white mosquito, more commonly found in the southeastern United States than in California. It typically bites during the day and can potentially transmit several viruses, including yellow fever, although the risk of transmission is "extremely low," according to the county.

Officials urge residents to eliminate all standing water from their yards and homes, and to reduce the chance of being bitten by:

● Applying insect repellents containing DEET, picaridin, oil of lemon eucalyptus or IR 3535.

● Checking that doors and windows have tight-fitting screens, and eliminating any holes.

● Reporting neglected swimming pools to the San Mateo County Mosquito and Vector Control at 344-8592 or the Santa Clara Vector Control District at (408) 918-4770.

● Wearing long sleeve shirts and long pants when possible.

● Placing mosquito netting over infant carriers, cribs and strollers.

More information

Fact sheet

County health guide

Comments

Posted by Chuck, a resident of another community
on Oct 14, 2013 at 12:04 pm

This story seems to say that the species of mosquito that can carry yellow fever has been found, but that the virus itself has not been found. Is this correct?


Posted by Eliza, a resident of Menlo Park: Central Menlo Park
on Oct 14, 2013 at 7:53 pm

Where were these found? Anyone know? What about ponds and waterways, such as MP Baylands park?


Posted by Russ Parman, a resident of another community
on Oct 15, 2013 at 3:55 pm

Chuck...that is correct. There was an erroneous report that mosquitoes positive for Yellow Fever had been found, but the word "positive" in the current situation is referring to traps and sites positive for the presence of Aedes aegypti.

Russ Parman, M.A. Biological Science
Acting District Manager
Santa Clara County - Vector Control District
1580 Berger Dr., San Jose, CA 95112
Direct (408) 918-3497; Cell (408) 593-6176; Fax (408) 298-6356; Office (408) 918-4770
Email: russell.parman@deh.sccgov.org


Posted by Russ Parman, a resident of another community
on Oct 15, 2013 at 3:59 pm

Eliza....The critters in question prefer to be close to human residences, and specialize in breeding in water sources as small as a bottle cap! They don't care for the larger water bodies. They also bite during the day.

The infestation site is near Holy Cross Cemetery in southern Menlo Park just North of our border.

Russ Parman, M.A. Biological Science
Acting District Manager
Santa Clara County - Vector Control District
1580 Berger Dr., San Jose, CA 95112
Direct (408) 918-3497; Cell (408) 593-6176; Fax (408) 298-6356; Office (408) 918-4770
Email: russell.parman@deh.sccgov.org


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