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West Nile Virus Found in Madison County Mosquitos


 

 

West Nile Virus Found in Madison County Mosquitoes

One mosquito pool in Madison County that tested positive for West Nile Virus has been reported to the Elkhorn Logan Valley Public Health Department (ELVPHD). Positive West Nile samples are most often reported as summer draws to an end during August and September. Humans get West Nile Virus after being bitten by an infected mosquito that was feeding on an infected bird.

Since we know West Nile Virus is in the area, ELVPHD will no longer be collecting dead birds for West Nile Virus Testing. There is still a limited supply of FREE mosquito wipes available at ELVPHD locations in Wisner, Norfolk and Tekamah. The addresses are listed below.

  • ELVPHD Norfolk Office—302 Phillip Avenue Suite 100, Norfolk
  • ELVPHD Wisner Office – 2104 21st Circle, Wisner
  • ELVPHD Tekamah Office—1121 S. 13th St, Tekamah

The best way to prevent West Nile Virus is to prevent mosquito bites. Limit outdoor activities between dusk and dawn, use mosquito repellent, and wear long sleeves and pants when outdoors.  Standing water should be removed as it provides a place for mosquito breeding. West Nile Virus has flu-like symptoms such as fever, headache, body aches, and rash. Less than 1% of infected people will develop a severe illness. Older adults and people with compromised immune systems are at the highest risk for becoming seriously ill if infected with West Nile. Contact the Elkhorn Logan Valley Public Health Department at 402-529-2233 for more information.

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Mosquitos Suck!


By John Wilson, Extension Educator

Many people consider Memorial Day weekend as the official beginning of the outdoor summer season with barbecues, boating, fishing and ball games… or just mowing your lawn or working in your garden. Nothing spoils these outdoor activities quicker than being swarmed by mosquitos. Rains this spring have provided moisture we will need later this summer, but they also can cause problems for anyone working outside. Rain creates ideal sites with standing water for mosquitoes to develop.

To reduce this problem, eliminate mosquito breeding areas that catch and hold water. Check for leaf-clogged gutters, puddles, bird baths, old tires, cans, bottles, lagoons, and children’s wading pools. Drain water from these when practical. Rinse out your bird bath weekly.

Still water in birdbaths, ponds or lagoons may also be treated with Bacillus thuringiensis, or Bt, in the form of biscuits, available at some garden and hardware stores. The sustained release of the active ingredients of these products may provide up to 30 days control of mosquito larvae. These products specifically attack mosquito larvae and will not harm fish… or birds or other wildlife that drink the water.

Only female mosquitoes possess piercing-sucking mouthparts and require a blood meal to produce viable eggs. Eggs are laid in batches between blood meals. A single female may deposit several hundred eggs in her lifetime. Under favorable conditions, a new generation of mosquitoes can be completed in less than a week.

To keep mosquitoes out of your home, check all doors, windows and window screens, to make sure these are tight and in good repair. Screens should be 1/16th-inch mesh or smaller to prevent mosquito entry into the home. Keep porch lights off as much as possible in the evening. Or, replace traditional white light bulbs with yellow ones to help reduce the attractiveness of your home to mosquitoes and other night-flying insects.

To prevent mosquito bites when working outside, wear long-sleeved shirts and full length pants. Two layers of clothing are more difficult to penetrate by biting mosquitoes. Wearing light-colored clothes will reduce your attractiveness. Work outdoors when it is cooler, or when there is a brisk air movement or strong sunlight. Different species of mosquitoes have specific feeding periods, but many are most active in the early evening hours, generally from 5 to 9 p.m.

But, because female mosquitoes are attracted to the carbon dioxide that we exhale, using an insect repellent while outdoors may be the most important method to prevent mosquito bites. You can use repellents containing DEET. These come under numerous brand labels and many formulations such as lotions, gels, aerosols, creams, and sticks.

Mosquitoes are always a nuisance, but they can also pose a health risk because of their potential to transmit West Nile Virus (WNV). In humans, WNV causes flu-like symptoms such as fever and muscle weakness. WNV can also cause encephalitis (an inflammation of the brain), disorientation, convulsions and paralysis. People over 50 and those with weak immune systems are especially vulnerable to the disease and should take extra precautions to avoid mosquito bites.

For more information on mosquito control, contact your local Nebraska Extension office.

 

 

One West Nile Virus Case Confirmed


One human West Nile Virus case has been confirmed in Elkhorn Logan Valley Public Health Department’s service area this past week. For the period 2003-2015, there were a total of 82 human cases of West Nile Virus in the health district. Most people who are infected with West Nile have no symptoms or only mild flu-like symptoms. The most common types of West Nile include West Nile fever and West Nile encephalitis. West Nile fever includes flu-like symptoms, such as fever and muscle weakness. Symptoms of West Nile encephalitis include inflammation of the brain, disorientation, convulsions, and paralysis. Less than one out of 150 people who get bitten by an infected mosquito and become infected will get seriously ill. However, people over 50 and those with weakened immune systems are especially vulnerable to the disease and are more likely to experience serious effects.

The most important way to lower your risk is to prevent mosquito bites. The public is reminded to take the following precautions:

  • Use mosquito repellent when outside (containing DEET, picaridin, or oil of lemon eucalyptus)
  • Wear long sleeved shirts, pants, and socks
  • Avoid going out at dawn and dusk, when mosquitos are most active
  • Remove standing water to reduce mosquito breeding sites

A study recently released by the Journal of the American Medical Association shows that insect repellents that are 25% DEET can repel mosquitos for up to 8 hours and ticks for up to 5 hours with one application. The same study shows that insect repellents that are at least 5.75% Picaridin, 20% IR3535, or 30% Oil of lemon eucalyptus will last about the same amount of time.

A limited supply of FREE DEET mosquito wipes and mosquito dunks for standing water are still available at all Elkhorn Logan Valley Public Health Department locations in Wisner, Norfolk, Tekamah. Limited supplies are available as well at UNL Extension offices in each of our four counties: Madison, Stanton, Cuming, and Burt. For questions please contact Elkhorn Logan Valley Public Health Department at 402.529.2233.

West Nile Virus Found in Madison County Mosquitos


Two mosquito pools in Madison County testing positive for West Nile Virus have been reported to the Elkhorn Logan Valley Public Health Department. There has been no West Nile activity reported in birds or humans at this time. West Nile cases in humans are most often reported as summer draws to an end during August and September. Humans get West Nile Virus after being bitten by an infected mosquito that was feeding on an infected bird.

The easiest way to prevent West Nile Virus is to prevent mosquito bites. Limit outdoor activities between dusk and dawn, use mosquito repellent, and wear long sleeves and pants when outdoors. Standing water should be removed as it provides a place for mosquito breeding. West Nile Virus has flu-like symptoms such as fever, headache, body aches, and rash. Less than 1% of infected people will develop a severe illness. Older adults and people with compromised immune systems are at the highest risk for becoming seriously ill if infected with West Nile. Contact the Elkhorn Logan Valley Public Health Department at 402-529-2233 for more information. ELVPHD will no longer be collecting dead birds for West Nile Virus testing as a result of the positive mosquitoes

Minimize Menacing Mosquitos


By John Wilson, Extension Educator

Many people considered Memorial Day weekend as the official beginning of the outdoor summer season with barbecues, boating, fishing and ball games… or just mowing your lawn or working in your garden. Nothing spoils these outdoor activities quicker than being swarmed by mosquitoes. Recent rains have provided moisture we’ll need later this summer, but they also can cause problems for anyone working outside. Rain creates ideal sites with standing water for mosquitoes to develop.

To reduce this problem, eliminate mosquito breeding areas that catch and hold water. Check for leaf-clogged gutters, puddles, bird baths, old tires, cans, bottles, lagoons, and children’s wading pools. Drain water from these when practical. Rinse out your bird bath weekly.

Still water in birdbaths, ponds or lagoons may also be treated with Bacillus thuringiensis, or Bt, in the form of biscuits, available at some garden and hardware stores. The sustained release of the active ingredients of these products may provide up to 30 days control of mosquito larvae. These products specifically attack mosquito larvae and will not harm fish or birds or wildlife that drink the water.

Only female mosquitoes possess piercing-sucking mouthparts and require a blood meal to produce viable eggs. Eggs are laid in batches between blood meals. A single female may deposit several hundred eggs in her lifetime. Under favorable conditions, a new generation of mosquitoes can be completed in less than a week.

To keep mosquitoes out of your home, check all doors, windows and window screens, to make sure these are tight and in good repair. Screens should be 1/16th-inch mesh or smaller to prevent mosquito entry into the home. Keep porch lights off as much as possible in the evening. Or, replace traditional white light bulbs with yellow ones to help reduce the attractiveness of your home to mosquitoes and other night-flying insects.

To prevent mosquito bites when working outside, wear long-sleeved shirts and full length pants. Two layers of clothing are more difficult to penetrate by biting mosquitoes. Wearing light-colored clothes will reduce your attractiveness. Work outdoors when it is cooler, or when there is a brisk air movement or strong sunlight. Different species of mosquitoes have specific feeding periods, but many are most active in the early evening hours, generally from 5 to 9 p.m.

But, because female mosquitoes are attracted to the carbon dioxide that we exhale, using an insect repellent while outdoors may be the most important method to prevent mosquito bites. You can use repellents containing DEET. These come under numerous brand labels and many formulations such as lotions, gels, aerosols, creams, and sticks.

Mosquitoes are always a nuisance, but they can also pose a health risk because of their potential to transmit West Nile Virus (WNV). In humans, WNV causes flu-like symptoms such as fever and muscle weakness. WNV can also cause encephalitis (an inflammation of the brain), disorientation, convulsions and paralysis. People over 50 (years ago I would have said older people, but not now!) and those with weak immune systems are especially vulnerable to the disease and should take extra precautions to avoid mosquito bites.

For more information on mosquito control, contact your local Nebraska Extension office.

John Wilson

John Wilson

West Nile Found in Madison County


Two mosquito pools in Madison County testing positive for West Nile Virus have been reported to the Elkhorn Logan Valley Public Health Department. There has been no West Nile activity reported in birds or humans at this time. West Nile cases in humans are most often reported as summer draws to an end during August and September. Humans get West Nile Virus after being bitten by an infected mosquito that was feeding on an infected bird.

The easiest way to prevent West Nile Virus is to prevent mosquito bites. Limit outdoor activities between dusk and dawn, use mosquito repellent, and wear long sleeves and pants when outdoors. Standing water should be removed as it provides a place for mosquito breeding. West Nile Virus has flu-like symptoms such as fever, headache, body aches, and rash. Less than 1% of infected people will develop a severe illness. Older adults and people with compromised immune systems are at the highest risk for becoming seriously ill if infected with West Nile. Contact the Elkhorn Logan Valley Public Health Department at 402-529-2233 for more information.

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