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Nsa Dada
Norwegian University of Life Sciences
5Publications
2H-index
37Citations
Publications 5
Newest
#1Nsa Dada (American Society for Microbiology)H-Index: 2
#2Juan C. Lol (Universidad del Valle de Guatemala)H-Index: 1
Last.Audrey Lenhart (CDC: Centers for Disease Control and Prevention)H-Index: 11
view all 8 authors...
A deeper understanding of the mechanisms underlying insecticide resistance is needed to mitigate its threat to malaria vector control. Following previously identified associations between mosquito microbiota and insecticide resistance, we demonstrate for the first time, the effects of pyrethroid exposure on the microbiota of F1 progeny of field-collected Anopheles albimanus. Larval and adult mosquitoes were exposed to the pyrethroids alphacypermethrin (only adults), permethrin, and deltamethrin....
#1Nsa Dada (CDC: Centers for Disease Control and Prevention)H-Index: 2
#2Nsa Dada (CDC: Centers for Disease Control and Prevention)H-Index: 1
Last.Audrey Lenhart (CDC: Centers for Disease Control and Prevention)H-Index: 11
view all 8 authors...
A deeper understanding of the mechanisms underlying insecticide resistance is needed to mitigate its threat to malaria vector control. Building upon our earlier identified associations between mosquito microbiota and insecticide resistance, we demonstrate for the first time, type-specific effects of pyrethroid exposure on internal and cuticle surface bacteria in adult progeny of field-collected Anopheles albimanus. In contrast, larval cuticle surface--but not internal--bacteria were affected by ...
#1Nsa Dada (American Society for Microbiology)H-Index: 1
#2Mili Sheth (CDC: Centers for Disease Control and Prevention)H-Index: 7
Last.Audrey Lenhart (CDC: Centers for Disease Control and Prevention)H-Index: 11
view all 5 authors...
In light of the declining global malaria burden attained largely due to insecticides, a deeper understanding of the factors driving insecticide resistance is needed to mitigate its growing threat to malaria vector control programs. Following evidence of microbiota-mediated insecticide resistance in agricultural pests, we undertook a comparative study of the microbiota in mosquitoes of differing insecticide resistance status. The microbiota of wild-caught Anopheles albimanus, an important Latin A...
#1Nanthasane Vannavong (NMBU: Norwegian University of Life Sciences)H-Index: 1
#2Hans J. Overgaard (NMBU: Norwegian University of Life Sciences)H-Index: 15
Last.Razak Seidu (NTNU: Norwegian University of Science and Technology)H-Index: 8
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Drinking water (DW) can serve as a route for disease transmission if not properly managed. The study assessed the effect of different factors on Escherichia coli quantities in DW in household water storage containers in suburban and rural villages in Laos and Thailand. Higher E. coli concentrations in DW were found in Laos compared to Thailand, especially in households without toilets (in Laos) and in rural rather than in suburban villages. In suburban Laos, house material, storage container typ...
#1Nanthasane Vannavong (NMBU: Norwegian University of Life Sciences)H-Index: 1
#2Razak Seidu (NTNU: Norwegian University of Science and Technology)H-Index: 8
Last.Hans J. Overgaard (NMBU: Norwegian University of Life Sciences)H-Index: 15
view all 5 authors...
Background Dengue fever is a mosquito-borne disease accounting for 50–100 million annual cases globally. Laos and Thailand are countries in south-east Asia where the disease is endemic in both urban and rural areas. Household water storage containers, which are favourable breeding sites for dengue mosquitoes, are common in these areas, due to intermittent or limited access to water supply. This study assessed the effect of household water management and socio-demographic risk factors on Aedes ae...
#1Nsa Dada (NMBU: Norwegian University of Life Sciences)H-Index: 2
#2Estelle Jumas-Bilak (University of Montpellier)H-Index: 26
Last.Hans J. Overgaard (NMBU: Norwegian University of Life Sciences)H-Index: 15
view all 6 authors...
Background: Domestic water storage containers constitute major Aedes aegypti breeding sites. We present for the first time a comparative analysis of the bacterial communities associated with Ae. aegypti larvae and water from domestic water containers. Methods: The 16S rRNA-temporal temperature gradient gel electrophoresis (TTGE) was used to identify and compare bacterial communities in fourth-instar Ae. aegypti larvae and water from larvae positive and negative domestic containers in a rural vil...
#1Nsa Dada (NMBU: Norwegian University of Life Sciences)H-Index: 2
#2Nanthasane Vannavong (NMBU: Norwegian University of Life Sciences)H-Index: 1
Last.Hans J. Overgaard (NMBU: Norwegian University of Life Sciences)H-Index: 15
view all 7 authors...
In a cross-sectional survey in one rural and one suburban village each in Thailand and Laos the relationship between Aedes aegypti production and Escherichia coli contamination in household water storage containers was investigated. Entomological and microbiological surveys were conducted in 250 and 239 houses in Thailand and Laos, respectively. Entomological indices across all four villages were high, indicating a high risk for dengue transmission. Significantly more Ae. aegypti pupae were prod...
#1Mary H. Hodges (Helen Keller International)H-Index: 12
#2Nsa Dada (LSTM: Liverpool School of Tropical Medicine)H-Index: 2
Last.Yaobi Zhang (Helen Keller International)H-Index: 17
view all 8 authors...
Background: The first-ever round of school-based mass drug administration (MDA) with praziquantel together with mebendazole targeting school-aged children in endemic districts was conducted in 2009 by the National Neglected Tropical Diseases Control Program. To evaluate the impact of the treatment regimen, a cross-sectional sentinel site survey was conducted 6 months post-MDA. Methods: Fifteen sentinel schools from six highly endemic districts (according to data from national and pre-MDA surveys...
#1Mary H. Hodges (Helen Keller International)H-Index: 12
#2Nsa Dada (LSTM: Liverpool School of Tropical Medicine)H-Index: 2
Last.Yaobi Zhang (Helen Keller International)H-Index: 17
view all 9 authors...
Background Schistosomiasis and soil-transmitted helminthiasis (STH) are endemic in Sierra Leone confirmed by national mapping in 2008. To better inform planning of preventive chemotherapy strategy, another survey was conducted before mass drug administration (MDA) in seven districts according to the mapping results or local knowledge. Fifty-nine chiefdoms and one school in every chiefdom were selected. Thirty school children aged 9-14 years from each school (total: 1760) were examined by parasit...
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