VC1B VC WASH Cluster – Emergency Training 1 Vector Control Module 1B Leishmaniasis.
Transcript of VC1B VC WASH Cluster – Emergency Training 1 Vector Control Module 1B Leishmaniasis.
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VCWASH Cluster – Emergency Training
Vector ControlModule 1B
Leishmaniasis
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Leischmaniasis
Phlebotomine sandfly
500 species, 30 carry Leischmaniasis
Small (2-3 mm long)
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Cutaneous Skin lesions (oriental sore)
Deformities of mouth/nostrils (espundia)
1–1.5 million cases/year
Visceral
(Kala Azar)
Infection in the lymphatics, fever, substantial weight loss, swelling of the spleen and liver and anemia and death if untreated, 500,000 cases/year
Recidivans Relapsing, tuberculoid form of cutaneous leishmaniasis Lesions usually on the face Chronic can last for decades
Leishmaniasis symptoms by type
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Live in inter-tropical and temperate regions
Female’s feed on blood to mature eggs
Larvae need organic matter, heat and humidity to develop
Eggs laid in burrows of specific rodents, bark of old trees, cracks in walls animal shelters and rubbish
Female sandfly covers a radius of several hundred meters
Female sandfly covers a radius of several hundred meters Only suck blood
at night
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• Begins as papules or nodules
• Progresses to ulcers at the site of a vector bite
Cutaneous Leishmaniasis:
• Appears 2-3 weeks after infective bite
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Visceral leishmaniasis (kala-azar)
• Incubation period is 2-6 months
• Presents with fever, massively enlarged spleen and pancytopenia
• Progresses to weakness, emaciation and death
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Vulnerability•Young age (infants and children) and malnutrition predispose to development of disease•HIV sufferers also at increased risk•Overall death rate = 11%
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Control
• Long lasting insecticide treated nets (LLINs)to protect from sandfly bites
• Indoor residual treatment
• Outdoor space spraying