Urban ecology of arboviral mosquito vectors along the Kenyan coast

Karisa, Jonathan; Muriu, Simon; Omuoyo, Donwilliams O.; Karia, Boniface; Nyamwaya, Doris K.; Rono, Martin K.; Warimwe, George M.; Mwangangi, Joseph; Mbogo, Charles M.

doi:10.1101/593350

Cited by 3 publications

(3 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cx. quinquefasciatus is found predominantly in the urban areas and it breeds enormously in all the available habitats and multiply in large numbers [22,23,24]. Rajagopalan [25] and other similar kind of studies carried out at various time periods [26,27,28,29].…”

Section: Resultsmentioning

confidence: 99%

Biting Behaviour of The Filarial Vector Mosquito, Culex quinquefasciatus Say,in an Urban Area

Surendran

A.J

2020

JPAE

View full text Add to dashboard Cite

Mosquitoes depend on blood meal for the development of their eggs into offsprings. By knowing the biting behaviour of mosquitoes, we may control mosquito-borne diseases and manage the mosquitoe menace successfully. The present study has been designed to study the biting behaviour of the filarial vector, Culex quinquefasciatus Say, in Madurai, Tamil Nadu, India from July to November 2006. This period was selected as mosquitoes are prevalent during this rainy season. Biting was more during September, October and November and the maximum of 28 caught/man/hour was recorded in November. It is predominantly an exophilic biter, but biting was also noticed as maximum inside the house during July in the study. The density of the biting population in the first floor was more than that of the second floor, which indicated the existence of vertical stratification in the biting behaviour of Cx quinquefasciatus.

show abstract

Section: Resultsmentioning

confidence: 99%

Biting Behaviour of The Filarial Vector Mosquito, Culex quinquefasciatus Say,in an Urban Area

Surendran

A.J

2020

JPAE

View full text Add to dashboard Cite

show abstract

“…Put every pupa in a vial with a label. Large containers provide a great challenge in pupal/ demographic surveys, as it is difficult to identify the precise number of pupae in them [86,90,91].…”

Section: Entomological Surveillancementioning

confidence: 99%

Dengue Virus Surveillance and Blood Safety: A One Health Perspective

Mulakoli¹,

Gachara²,

Ndombi³

et al. 2023

Infectious Diseases

View full text Add to dashboard Cite

The provision of blood products to save a life is a noble undertaking for any organization tasked with the duty. In addition to saving millions of lives, blood products pose health risks associated with adverse events. Much has been done to mitigate these challenges, but emerging new infectious diseases pose a public health challenge to both the safety of blood and its availability. The dengue virus an arbovirus is one such virus that is endemic in tropical and subtropical countries. The data emerging from the published papers show that dengue could be a major threat to blood safety and availability in the future. To address these threats, a collaborative approach through one health system is the only avenue to provide a last solution. One health has been implemented as a strategy to mitigate zoonotic diseases and its results are very impressive. This piece of work is a fraction of our larger project that aims to address threats to the dengue virus and blood safety in Kenya and the rest of Africa. In conclusion, adopting one health in the fight against the dengue virus in blood safety will be the best approach to ensure a safer supply of blood products.

show abstract

“…Each step was followed by incubation at room temperature as well as rinsing of the plate. The results were read qualitatively (visually) through colour change, with a homogenous greenish-blue colour considered to indicate positivity and a clear sample without colour change considered to indicate negativity, as previously described [20,36]. The positive controls were serum from human, bovine, goat, and chicken, whereas PBS was used as negative control.…”

Section: Blood-meal Analysismentioning

confidence: 99%

Malaria vector bionomics in Taita-Taveta County, coastal Kenya

et al. 2022

View full text Add to dashboard Cite

Background Estimation of the composition and densities of mosquito species populations is crucial for monitoring the epidemiology of mosquito-borne diseases and provide information on local vectors to public health officials and policy-makers. The aim of this study was to evaluate malaria vector bionomics in ecologically distinct sites in Taita-Taveta County, Kenya. Methods Adult mosquitoes were collected using backpack aspirators and paired indoor/outdoor CDC light traps in 10 randomly selected households in six villages with distinct ecologies over a study period of 3 years. All Anopheles mosquitoes were morphotyped, and sibling species of Anopheles gambiae sensu lato (An. gambiae s.l.) were identified and separated by PCR analysis of extracted ribosomal DNA. All female anophelines were tested for sporozoite infectivity, with engorged females screened for blood-meal sources using the enzyme-linked immunosorbent assay technique. A subsample of those testing positive and those testing negative for Plasmodium in the ELISA were subjected to PCR assay. Results A total of eight different Anopheles species were collected both indoors and outdoors. Anopheles gambiae s.l. (82.6%, n = 5252) was the predominant species sensu lato, followed by Anopheles coustani sensu lato (An. coustani s.l.; (10.5%, n = 666) and Anopheles funestus sensu lato (An. funestus s.l.; 5.6%, n = 357). A subset of 683 mosquito samples representing An. gambiae s.l. (n = 580, approx. 11.0%) and An. funestus s.l. (n = 103, approx. 28.9%) were identified by molecular diagnostic assays into sibling species. The An. gambiae s.l. complex was composed of Anopheles arabiensis (62.5%, n = 363/580), An. gambiae sensu stricto (An. gambiae s.s.; 0.7%, n = 4/580), Anopheles merus (0.7%, n = 4/580) and Anopheles quadriannulatus (0.2%, n = 1/580), with the remaining samples (35.5%, n = 206/580) unamplified. Anopheles funestus s.l. was composed of An. rivulorum (14.6%, n = 15/103) and An. leesoni (11.6%, n = 12/103); the remaining samples were unamplified (73.8%, n = 76/103). A total of 981 samples were subjected to PCR analysis for malaria parasite detection; of these 16 (1.6%) were confirmed to be positive for Plasmodium falciparum. The overall human blood index was 0.13 (32/238). Conclusions Anopheles gambiae, An. funestus and An. coustani are key malaria vectors in the Taveta region of Kenya, showing concurrent indoor and outdoor transmission. All of the vectors tested showed a higher propensity for bovine and goat blood than for human blood. Graphical Abstract

show abstract

Urban ecology of arboviral mosquito vectors along the Kenyan coast

Cited by 3 publications

References 82 publications

Biting Behaviour of The Filarial Vector Mosquito, Culex quinquefasciatus Say,in an Urban Area

Biting Behaviour of The Filarial Vector Mosquito, Culex quinquefasciatus Say,in an Urban Area

Dengue Virus Surveillance and Blood Safety: A One Health Perspective

Malaria vector bionomics in Taita-Taveta County, coastal Kenya

Contact Info

Product

Resources

About