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Clark County Mosquito Control District (CCMCD)
History
• Prior to 1982 mosquito control was a function
of the SW Washington Health District
• CCMCD established by vote of Clark County
residents in 1982 (RCW 17.28)
• CCMCD coordinates with Clark County Public
Health
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CCMCD Structure
• Board of Trustees: 10 members
• Staffing: Manager and 13 seasonal
employees
• Budget: $478,000 for 2016 ($4.05 parcel fee)
• Building and equipment
• Clark County Public Health staff support
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CCMCD Work Plan
• Purpose of CCMCD: The objective of mosquito
management is to keep populations below levels
where they become a nuisance or a public health
problem leading to an outbreak of disease.
• CCMCD uses Integrated Pest Management
– Primary focus on immature mosquito abatement
– Endorsed by WA Dept. of Ecology and CDC
• Various methods used to monitor and control
mosquito populations
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Mosquito Surveillance
• Dipping for larvae
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Mosquito Surveillance
• Dipping for larvae
• Adult trapping
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Mosquito Surveillance
• Dipping for larvae
• Adult trapping
• Service requests
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Mosquito Surveillance
• Dipping for larvae
• Adult trapping
• Service requests
• Testing for West
Nile Virus
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Mosquito Control
• Assessment
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Mosquito Control
• Assessment
• Larvae Control
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Mosquito Control
• Assessment
• Larvae Control
• Adult Control
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Zika Virus Vectors
• Aedes aegypti, Yellow Fever Mosquito (L)
• Aedes albopictus, Asian Tiger Mosquito (R)
Courtesy of J. Newman,
University of Florida
Master Gardner Program
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Zika Virus Vectors
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Zika Virus Vectors
• Aedes aegypti, Yellow Fever Mosquito
• Aedes albopictus, Asian Tiger Mosquito
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Potential Distribution of Aedes aegypti
The global distribution of the arbovirus vectors Aedes aegypti and Ae. Albopictus
Kraemer, et. al.,
eLife 08347 (2015)
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Aedes albopictus
The global distribution of the arbovirus vectors Aedes aegypti and Ae. Albopictus
Kraemer, et. al.,
eLife 08347 (2015)
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Potential Distribution of Aedes aegypti
and A. albopictus
Dengue in the United States of America: A Worsening Scenario?Germán Añez and Maria RiosBioMed Research InternationalVolume 2013 (2013), Article ID 678645, 13 pages
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Clark County Mosquitoes
• Over two dozen
species
• Two Aedes species:
– Aedes vexans (R)
– Aedes cinereus
Can Zika Virus spread to other species of Aedes?
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Conclusions
• CCMCD provides mosquito monitoring and
abatement for Clark County
• The District coordinates very closely with
Public Health
• The District has and will continue to enhance
its role in the Zika Virus situation
• At this time, we anticipate no vector-borne
Zika spread; but we must remain vigilant.
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Questions?