Home / Health / Southern California mosquitoes test positive for West Nile virus and St. Louis encephalitis – NBC Los Angeles

Southern California mosquitoes test positive for West Nile virus and St. Louis encephalitis – NBC Los Angeles



What to know

  • The mosquitoes were collected from a trap in Hacienda Heights.
  • With rising temperatures, mosquito populations and the risk of disease, which is a serious threat to public health in our communities, increase, according to vector control.
  • Severe symptoms include high fever, muscle weakness, stiff neck, coma, paralysis and possibly death.

The first West Nile virus positive mosquito sample of the season in Los Angeles County was reported on Monday, while vector control in Palm Desert also reported mosquito samples that tested positive for WNV and St. Louis encephalitis.

The Los Angeles area vector control district said the mosquitoes were collected from a trap in Hacienda Heights, where adult mosquito populations and adult female mosquito test groups are routinely monitored for the presence of WNV and other mosquito-borne viruses.

“This discovery should serve as a reminder that WNV is endemic to Los Angeles County,”

; said Susanne Kluh, director of scientific and technical services at GLACVCD. “As temperatures rise, so do mosquito populations and the risk of disease, which represents a serious public.” Health threat in our communities. ”

Protesters protested around the world this weekend to mourn the death of George Floyd by police officers from Minneapolis.

The West Nile virus was also found in mosquitoes collected from traps in Palm Desert. This emerges from the reports of Coachella Valley Mosquito and Vector Control District.

Just a week earlier, mosquitoes in La Quinta tested positive for St. Louis encephalitis.

WNV is transmitted to humans and animals through the bite of an infected mosquito. There is no cure and every fifth person infected shows symptoms such as fever, headache, body ache, nausea or rash. The symptoms can last from several days to months. One in 150 people infected with the virus must be hospitalized. Severe symptoms include high fever, muscle weakness, stiff neck, coma, paralysis and possibly death.

The late rains combined with warmer temperatures have contributed to increased mosquito activity in the communities of Southland, according to the Vector Control District.

“Our agency will continue to monitor disease activity and treat affected areas,” said Mary-Joy Coburn, director of community affairs at GLACVCD. “Although the positive mosquitoes were collected in one area at the time, all LA County residents should take precautions.” as if you were wearing insect repellent and removing standing water in the house. ”

Many mosquito repellents are available to prevent bites, but they don’t all work equally well. The United States Centers for Disease Control and Prevention recommend products containing DEET, Picaridin, IR3535, or Lemon Eucalyptus Oil as safe and effective when used against mosquito-bearing labels as per the labels. Wearing loose-fitting long sleeves and pants can also help keep bites off.

Any water that remains in containers such as flower pots, fountains and animal dishes for more than a week offers the perfect breeding area for mosquitoes. GLACVCD reminds residents that even the smallest water source can contribute to a major public health problem.

The GLACVCD urged residents to take an active role in reducing the WNV threat in their neighborhood by taking the following steps:

  • standing water in clogged gutters, rain barrels,
  • discarded tires, buckets, drinkers or anything that holds water for more than a week;
  • Make sure that swimming pools, spas and ponds are properly maintained.
  • Change the water in pet bowls, bird baths and other small containers weekly.
  • Request a mosquito fish from your local vector control district to place it in ornamental ponds.
  • Wear insect repellent outdoors where there may be mosquitoes
  • Report neglected or green water pools in your neighborhood to your vector control district.

For more information, residents of GLACVCD can be found online at www.glacvcd.org or by calling 562-944-9656.




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