West Nile spotted in the Western Slope

Henrietta Strickland
August 18, 2019

The City of Longmont has contracted with VDCI to implement an integrated pest management program to combat mosquitoes that might carry the West Nile Virus. It reported 176 human cases, including 17 deaths. They are Cascade, Sheridan and Yellowstone Counties.

A Facebook post from the Davis County Health Department said: "There have been multiple pools in Davis County with mosquitoes that are positive for West Nile virus". Symptoms of West Nile virus include fever, nausea, headache, and muscle aches. She said the virus doesn't immediately cause illness, and some illnesses have been reported as late as October. Most people infected with mosquito-borne viruses don't get sick. There is no available treatment at this time.

Longmont fogging/spraying is triggered when West Nile Virus positive mosquitoes are discovered in either Larimer, Boulder or Weld Counties and when Longmont traps exceed 150 mosquitoes.

Dress in long sleeves and trousers where mosquitos are active.

Use Environmental Protection Agency (EPA)-registered insect repellents with one of the following active ingredients DEET: Picaridin (known as KBR 3023 and Icaridin outside the US), IR3535, Oil of lemon eucalyptus (OLE), Para-menthane-diol (PMD), 2-undecanone.

Drain standing water around your house. Livestock water tanks and ornamental ponds may be treated with Bacillus thuringiensis israelensis (Bti), a type of bacteria that kills mosquito larvae but is safe for animals. Occasionally, infective mosquitoes will feed on mammals such as horses, dogs, cats, and humans, and transmit the virus to them. Severe symptoms such as encephalitis, convulsions, and paralysis are rare and are most likely to occur in older adults or individuals with compromised immune systems.

Other reports by Click Lancashire

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