Application of the pupal/demographic-survey methodology to identify the key container habitats of<i>Aedes aegypti</i>(L.) in Malindi district, Kenya

Midega, Janet; Nzovu, Joseph G.; Kahindi, Samuel C.; Sang, Rosemary; Mbogo, Charles M.

doi:10.1179/136485906x105525

Cited by 34 publications

(44 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our results are consistent with findings from other researchers that report that the contribution to the total number of Ae. aegypti larvae positive containers was high for grounded level tanks (56%) 20,21,22 . On the other hand, if we compare the immature infestation indices with adult indices, the highest infestation was found among adults, rather than larvae.…”

Section: Discussionmentioning

confidence: 99%

An ecosystemic approach to evaluating ecological, socioeconomic and group dynamics affecting the prevalence of Aedes aegypti in two Colombian towns

et al. 2009

View full text Add to dashboard Cite

This article focuses on the epidemiological methods and results of a global Ecohealth study that explored the complexity of the relationship between ecological, biological, economical, social and political factors and vector presence. The study was carried out in two dengue endemic areas of Colombia. A transdisciplinary team gathered quantitative and qualitative data. A survey in randomly sampled households was applied and, simultaneously, direct observation of potential breeding sites was carried out. Logistic regressions and qualitative techniques were used. Qualitative and quantitative data were compared using triangulation. The presence of low water containers increases seven-fold the risk of finding immature forms ofAedes aegypti in the household (OR = 7.5; 95%CI: 1.7-32.2). An inverse association between socioeconomic stratum and presence of the vector was identified (Low stratum OR = 0.9; 95%CI: 0.6-1.4; High stratum OR =0.4; 95%CI: 0.07-1.7). Water management is a complex social dynamic associated with the presence of Ae. aegypti. Dengue control is a challenge for public health authorities and researchers as they should address promotion and prevention strategies that take into account cultural, behavioral, socioeconomic and health factors.

show abstract

Section: Discussionmentioning

confidence: 99%

An ecosystemic approach to evaluating ecological, socioeconomic and group dynamics affecting the prevalence of Aedes aegypti in two Colombian towns

et al. 2009

View full text Add to dashboard Cite

show abstract

“…aegypti-borne infections 22,29 and numerous attempts to identify or develop more appropriate pupal and other indices has been undertaken. [30][31][32][33] However, to date, there is no solid consensus as to which immature indices best provide this risk estimate and the container and Breteau indices in particular are still frequently used as population den- …”

Section: Discussionmentioning

confidence: 99%

Entomologic Investigations of a Chikungunya Virus Epidemic in the Union of the Comoros, 2005

Sang¹,

Ouledi²,

Faye³

et al. 2008

The American Journal of Tropical Medicine and Hygiene

View full text Add to dashboard Cite

Abstract. From January to April 2005, an epidemic of chikungunya virus (CHIKV) illness occurred in the Union of Comoros. Entomological studies were undertaken during the peak of the outbreak, from March 11 to March 31, aimed at identifying the primary vector(s) involved in transmission so that appropriate public health measures could be implemented. Adult mosquitoes were collected by backpack aspiration and human landing collection in homes and neighborhoods of clinically ill patients. Water-holding containers were inspected for presence of mosquito larvae. Adult mosquitoes were analyzed by RT-PCR and cultivation in cells for the presence of CHIK virus and/or nucleic acid. A total of 2,326 mosquitoes were collected and processed in 199 pools. The collection consisted of 62.8% Aedes aegypti, 25.5% Culex species, and 10.7% Aedes simpsoni complex, Eretmapodites spp and Anopheles spp. Seven mosquito pools were found to be positive for CHIKV RNA and 1 isolate was obtained. The single CHIKV mosquito isolate was from a pool of Aedes aegypti and the minimum infection rate (MIR) for this species was 4.0, suggesting that Ae. aegypti was the principal vector responsible for the outbreak. This was supported by high container (31.1%), household (68%), and Breteau (126) indices, with discarded tires (58.8%) and small cooking and water storage vessels (31.1%) registering the highest container indices.

show abstract

“…The most important mosquito species along the Kenyan coast in terms of transmission of disease pathogens to humans include Anopheles gambiae Giles, Anopheles arabiensis Patton, Anopheles merus Donitz, Anopheles funestus Giles , Culex quinquefasciatus Say (Mwandawiro et al 1997), Mansonia africana Theobald and Aedes aegypti L. (Midega et al 2006). These mosquito species are responsible for the transmission of malaria (A. gambiae, A. arabiensis, A. merus, A. funestus), Bancroftian filariasis (C. quinquefasciatus and A. gambiae), dengue fever (A. aegypti), Rift valley Virus (A. aegypti), and Yellow fever (A. aegypti; Mwandawiro et al 1997;Woods et al 2002;Mbogo et al 2003;Midega et al 2006;Muturi et al 2006).…”

Section: Introductionmentioning

confidence: 98%

Mosquito species abundance and diversity in Malindi, Kenya and their potential implication in pathogen transmission

et al. 2011

View full text Add to dashboard Cite

Mosquitoes (Diptera: Culicidae) are important vectors of human disease-causing pathogens. Mosquitoes are found both in rural and urban areas. Deteriorating infrastructure, poor access to health, water and sanitation services, increasing population density, and widespread poverty contribute to conditions that modify the environment, which directly influences the risk of disease within the urban and peri-urban ecosystem. The objective of this study was to evaluate the mosquito vector abundance and diversity in urban, peri-urban, and rural strata in Malindi along the Kenya coast. The study was conducted in the coastal district of Malindi between January and December 2005. Three strata were selected which were described as urban, peri-urban, and rural. Sampling was done during the wet and dry seasons. Sampling in the wet season was done in the months of April and June to cover the long rainy season and in November and December to cover the short rainy season, while the dry season was between January and March and September and October. Adult mosquito collection was done using Pyrethrum Spray Collection (PSC) and Centers for Disease Control and Prevention (CDC) light traps inside houses and specimens were identified morphologically. In the three strata (urban, peri-urban, and rural), 78.5% of the total mosquito (n = 7,775) were collected using PSC while 18.1% (n = 1,795) were collected using the CDC light traps. Using oviposition traps, mosquito eggs were collected and reared in the insectary which yielded 329 adults of which 83.8% (n = 276) were Aedes aegypti and 16.2% (n = 53) were Culex quinquefasciatus. The mosquito distribution in the three sites varied significantly in each collection site. Anopheles gambiae, Anopheles funestus and Anopheles coustani were predominant in the rural stratum while C. quinquefasciatus was mostly found in urban and peri-urban strata. However, using PSC and CDC light trap collection techniques, A. aegypti was only found in urban strata. In the three strata, mosquitoes were mainly found in high numbers during the wet season. Further, A. gambiae, C. quinquefasciatus, and A. aegypti mosquitoes were found occurring together inside the houses. This in turn exposes the inhabitants to an array of mosquito-borne diseases including malaria, bancroftian filariasis, and arboviruses (dengue fever, Yellow fever, Rift Valley fever, Chikungunya fever, and West Nile Virus). In conclusion, our findings provide useful information for the design of integrated mosquito and disease control programs in East African environments.

show abstract

Application of the pupal/demographic-survey methodology to identify the key container habitats ofAedes aegypti(L.) in Malindi district, Kenya

Cited by 34 publications

References 18 publications

An ecosystemic approach to evaluating ecological, socioeconomic and group dynamics affecting the prevalence of Aedes aegypti in two Colombian towns

An ecosystemic approach to evaluating ecological, socioeconomic and group dynamics affecting the prevalence of Aedes aegypti in two Colombian towns

Entomologic Investigations of a Chikungunya Virus Epidemic in the Union of the Comoros, 2005

Mosquito species abundance and diversity in Malindi, Kenya and their potential implication in pathogen transmission

Contact Info

Product

Resources

About