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Western Kenya

Insecticidal decay effects of long-lasting insecticide nets and indoor residual spraying on Anopheles gambiae and Anopheles arabiensis in Western Kenya

November 23, 2015 - 15:48 -- Open Access
Author(s): 
Wanjala C, Zhou G, Mbugi J, Simbauni J, Afrane Y, Ototo E, Gesuge M, Atieli H, Githeko A, Yan G
Reference: 
Parasites & Vectors 2015, 8 :588 (14 November 2015)

This study confirms that insecticide decay and developing levels of resistance have a negative contribution to reduced efficacy of ITN and IRS in western Kenya. 

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Serological markers for monitoring historical changes in malaria transmission intensity in a highly endemic region of Western Kenya, 1994-2009

December 5, 2014 - 07:37 -- Open Access
Author(s): 
Jacklyn Wong, Mary J Hamel, John E Gimnig, et al.
Reference: 
Malaria Journal 2014, 13:451 (22 November 2014)

This study was conducted through ongoing KEMRI and CDC collaboration. Asembo, in Western Kenya, is an area where intense malaria transmission was drastically reduced during a 1997–1999 community-randomized, controlled insecticide-treated net (ITN) trial.

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High-resolution melting analysis reveals low Plasmodium parasitaemia infections among microscopically negative febrile patients in western Kenya

November 25, 2014 - 17:02 -- Open Access
Author(s): 
Purity N Kipanga, David Omondi, Paul O Mireji, Patrick Sawa, Daniel K Masiga, Jandouwe Villinger
Reference: 
Malaria Journal 2014, 13:429 (15 November 2014)

This is the first study that employs low-parasitaemia Plasmodium diagnostics to quantify the prescription of anti-malarial drugs to both non-malaria febrile patients and patients with low-parasitaemia Plasmodium infections.

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Pyrethroid susceptibility of malaria vectors in four Districts of western Kenya

July 22, 2014 - 19:05 -- Open Access
Author(s): 
Eric Ochomo, Nabie M Bayoh, Charles Mbogo, et al.
Reference: 
Parasites & Vectors 2014, 7:310

This study was designed to investigate the extent and distribution of pyrethroid resistance in 4 Districts of western Kenya (Nyando, Rachuonyo, Bondo and Teso). All four Districts have received LLINs while Nyando and Rachuonyo Districts have had IRS campaigns for 3–5 years using pyrethroids.

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Modest additive effects of integrated vector control measures on malaria prevalence and transmission in western Kenya

July 23, 2013 - 16:52 -- Open Access
Author(s): 
Zhou G, Afrane YA, Dixit A, Atieli HE, Lee M, Wanjala CL, Beilhe LB, Githeko AK, Yan G
Reference: 
Malaria Journal 2013, 12:256 (19 July 2013)
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Cross-sectional, mass parasite screenings, adult vector populations, and cohort of active case surveillance (ACS) were conducted before and after the intervention in three study sites with two- to three-paired intervention-control clusters at each site each year.

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A randomized trial of artemether-lumefantrine and dihydroartemisinin-piperaquine in the treatment of uncomplicated malaria among children in western Kenya

July 23, 2013 - 16:44 -- Open Access
Author(s): 
Agarwal A, McMorrow M, Onyango P, Otieno K, Odero C, Williamson J, Kariuki S, Kachur SP, Slutsker L, Desai M
Reference: 
Malaria Journal 2013, 12:254 (19 July 2013)
MalariaWorld

The efficacy of AL and dihydroartemisinin-piperaquine (DP) were evaluated for the treatment of uncomplicated malaria in children aged six to 59 months in western Kenya.

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The association between price, competition, and demand factors on private sector anti-malarial stocking and sales in western Kenya: considerations for the AMFm subsidy

June 10, 2013 - 16:42 -- Open Access
Author(s): 
Prudhomme O'Meara W, Obala A, Thirumurthy H, Khwa-Otsyula B
Reference: 
Malaria Journal 2013, 12:186 (5 June 2013)
MalariaWorld

Ninety-seven retail outlets in the study area were surveyed; 11% of outlets stocked subsidized AL. Size of the outlet and having a pharmacist on staff were associated with greater likelihood of stocking subsidized AL. 

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Reconsideration of Anopheles rivulorum as a vector of Plasmodium falciparum in Western Kenya: some evidence from biting time, blood preference, sporozoite positive rate, and pyrethroid resistance

October 12, 2012 - 16:40 -- Patrick Sampao
Author(s): 
Kawada H, Dida GO, Sonye G, Njenga SM, Mwandawiro C, Minakawa N
Reference: 
Parasites & Vectors 2012, 5:230 (10 October 2012)

MalariaWorldGiven the tendency for An. rivulorum to be active early in the evening, the presence of P. falciparum in the species, and the potential for the development of pyrethroid resistance, we strongly advocate reconsideration of the latent ability of this species as an epidemiologically important malaria vector.

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Open Access | Spatial and temporal dynamics of malaria transmission in rural Western Kenya

April 30, 2012 - 13:59 -- Patrick Sampao
Author(s): 
Amek N, Bayoh N, Hamel M, Lindblade KA, Gimnig J, Odhiambo F, Laserson KF, Slutsker L, Smith T, Vounatsou P
Reference: 
Parasites & Vectors 2012, 5:86 (28 April 2012)

MalariaWorldWe describe the spatio-temporal dynamics of malaria transmission intensity measured by mosquito density and EIR in the KEMRI/CDC health and demographic surveillance system using entomological data collected during 2002-2004.

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Open Access | Topography as a modifier of breeding habitats and concurrent vulnerability to malaria risk in the western Kenya highlands

December 29, 2011 - 11:37 -- Patrick Sampao
Author(s): 
Atieli HE, Zhou G, Lee M, Kweka EJ, Afrane Y, Mwanzo I, Githeko AK, Yan G
Reference: 
Parasites & Vectors 2011, 4:241 (23 December 2011)

MalariaWorldThis study investigated whether the distribution of local spatial malaria vectors and risk of infection with malaria parasites in the highlands is related to topography.

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