Monday, August 28, 2023

West Nile Virus Activity is on the Rise in Warren County

 West Nile virus Activity is On the Rise in Warren County

Four more samples of mosquitoes collected last week tested positive for West Nile virus in Warren County.   All four samples consisted of Culex mosquitoes. This type of mosquito is the primary vector of West Nile virus and prefers to get its bloodmeals from birds. However, they do bite people as well, so residents are highly encouraged to wear mosquito repellent. The mosquitoes were collected from Hope and Liberty Townships on August 15th in traps specifically designed to catch Culex mosquitoes. 

 

So far this year, Warren County Mosquito Control Commission has submitted 314 mosquito samples to the state laboratory for mosquito-borne virus testing and eleven (11) mosquito samples this year have tested positive for West Nile virus.  The WNV positive mosquitoes have been collected from Belvidere, Blairstown, Franklin, Harmony, Hope (3), Liberty, Lopatcong (2) , and Washington Townships. Statewide, the number of West Nile positive mosquitoes is now above the 5-year average.  There have been three presumptive human cases of West Nile positive in New Jersey this year reported one each from Bergen, Camden, and Middlesex Counties.  Mid to late August is peak time for humans and other mammals to acquire this virus.  Subsequent trapping for adult mosquitoes is taking place to survey for mosquito species more likely to bite people.  Treatments to reduce adult mosquito populations in areas of the West Nile virus activity are scheduled for Saturday August 26, 2023, between 8:00 pm and 11:59 pm.

 

There are high populations of container-breeding mosquitoes in the area that could potentially transmit the virus.  YOU CAN HELP!  Residents are urged to help reduce their risk of contracting mosquito-borne diseases by following these guidelines: 

  • Don't produce mosquitoes on your property. Dump or drain standing water. Mosquitoes can't begin their life without water. Encourage your neighbors to do the same!
  • Defend yourself against mosquitoes using repellents containing the active ingredients:  DEET, IR3535, or Oil of Lemon Eucalyptus.
  • Avoid being outdoors when mosquitoes are present, typically Dawn and Dusk.
  • Report neglected swimming pools by calling 908-453-3585 or visiting www.warrencountymosquito.org  Anonymous calls accepted. Just one neglected pool

      can produce more than 1 million mosquitoes and affect people up to five miles away.  

 

WEST NILE VIRUS INFORMATION

West Nile virus symptoms of the mild form include fever, headache, tiredness, body aches, and swollen lymph glands. While the illness can be as short as a few days, even healthy people have reported being sick for several weeks. About 1 in 5 people with West Nile virus develop a fever and mild symptoms. Less than one percent of individuals (about 1 in 150 people) infected with West Nile virus will develop severe illness. The severe symptoms can include high fever, headache, neck stiffness, stupor, disorientation, coma, tremors, convulsions, muscle weakness, vision loss, numbness and paralysis. These symptoms may last several weeks, and neurological effects may be permanent. West Nile virus infection can be fatal.    

 

Horses can also contract West Nile virus and get seriously ill from the disease.  There is a vaccine for horses but they need to be vaccinated every year.  Contact your veterinarian for vaccination information. 

 

·         Information on WNV, repellents etc. from the Centers for Disease Control at https://www.cdc.gov/mosquitoes/mosquito-bites/prevent-mosquito-bites.html

·         Notice of spraying to be done for adult mosquitoes in the county can be found on the website, scroll down to treatment schedule:  http://www.warrencountymosquito.com

·         More information about West Nile virus and other vector borne diseases (mosquito & tick) present in New Jersey can be found at: https://www.nj.gov/health/cd/topics/vectorborne.shtml