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Press Releases

For Immediate Release  • July 26, 2013
Staff Contact: Rigo Leal, Public Information Officer, 303-651-8840

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Fight the Bite


Longmont's Spraying Efforts Significantly Reduced the West Nile Mosquito Threat


July 26, 2013 - The results from Longmont’s Wednesday mosquito trapping show that the City’s spraying efforts successfully reduced the number of mosquitoes that can carry the West Nile Virus (WNV).

The overall mosquito counts are down from previous results. More importantly the vector index for West Nile Virus dropped from 1.18 to 0.32, well below the 0.75 threshold.

The City of Longmont’s contractor, Colorado Mosquito Control, sprayed the entire city for West Nile infected mosquitoes on Friday, July 19 and again on Monday, July 22, 2013, based on recommendations from the Boulder County Health Department (BCPH) and the Colorado State Health and the Environment Department.

In their recommendation letter last week to the Longmont city manager, Boulder County health officials wrote in part:

The City of Longmont is now back to its normal integrated pest management program. This program includes collecting and evaluating mosquito traps on Sunday nights and spot spraying (if necessary) on Wednesday nights in areas that have greater than 100 mosquitoes. Colorado Mosquito Control will be honoring shut-off request from residents.

WNV is a disease that can be transmitted to humans by mosquitoes. While most infections are mild, the more serious infections can cause encephalitis (inflammation of the brain) and/or meningitis (inflammation of the brain's lining), loss of vision, paralysis, coma, tremors, convulsions and in some cases, death.

There is no treatment, cure, or vaccination for WNV; health care providers can only treat the symptoms to help patients feel better and possibly recover more quickly. The only treatment available is prevention.

Public health officials remind residents that, as we enjoy these warm temperatures with outdoor activities, particularly at dusk and dawn, it is important that everyone take action to protect themselves by following ALL of the four Ds. The 4 D’s are:

For more information about WNV, please visit the BCPH website at To ask specific questions, call the Colorado Health Education Line for the public at 1-877-462-2911 (available in Spanish and English).

If people suspect they have WNV symptoms, BCPH urges them to consult with their primary care physicians.

For information about West Nile virus, please visit Boulder County web site at or call Boulder County Public Health Hotline at 303-441-1460 or visit