ORCID Profile
0000-0002-5178-9721
Current Organisations
Swiss Tropical and Public Health Institute
,
Bundesanstalt für Geowissenschaften und Rohstoffe
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Publications
Spatially aggregated clusters and scattered smaller loci of elevated malaria vector density and human infection prevalence in urban Dar es Salaam, Tanzania
Publisher: Springer Science and Business Media LLC
Date: 03-2016
Effective autodissemination of pyriproxyfen to breeding sites by the exophilic malaria vector Anopheles arabiensis in semi-field settings in Tanzania
Publisher: Springer Science and Business Media LLC
Date: 29-04-2014
A need for better housing to further reduce indoor malaria transmission in areas with high bed net coverage
Publisher: Springer Science and Business Media LLC
Date: 07-03-2013
Increasing role of Anopheles funestus and Anopheles arabiensis in malaria transmission in the Kilombero Valley, Tanzania
Publisher: Springer Science and Business Media LLC
Date: 24-08-2014
Comprehensive Sterilization of Malaria Vectors Using Pyriproxyfen: A Step Closer to Malaria Elimination
Publisher: American Society of Tropical Medicine and Hygiene
Date: 07-05-2014
An application of morphological analysis and DNA barcoding to identify Ipnops from the Clarion-Clipperton Zone (CCZ) as I. meadi Nielsen, 1966 with notes on other species of the genus (Aulopiformes: I
Publisher: Springer Science and Business Media LLC
Date: 12-2022
DOI: 10.1007/S12526-022-01320-1
Abstract: Although Ipnops specimens are relatively common in the Clarion-Clipperton Fracture Zone (CCZ), an area targeted for potential future deep-sea mining, a reliable species identification has not yet been possible due to the lack of a captured specimen. In April 2012, an Ipnops specimen was caught for the first time from the eastern CCZ during an exploration cruise of the BGR. Species identification of this specimen was performed using a comparative application of morphological analysis and DNA barcoding and resulted in its clear assignment to Ipnops meadi Nielsen, 1966. Of the 23 compared morphological characters, 22 are inside the ranges available for I. meadi . Molecular analyses show a sequence distance of 0.76% ergence to an Ipnops specimen collected off Hawaii, close to the CCZ and also within the known geographical distribution range of I. meadi . The additional study of five specimens of I. meadi from the Arabian Sea has extended the previously known range of the following morphological characters of this species: gill rakers on anterior arch (17–21), head length (17.6–24.0 % SL), upper jaw length (10.7–14.0 % SL), maximum width of eye-plates (7.8–9.8 % SL), preanal length (58.8–79.0 % SL), and predorsal length (34.5–40.5 % SL). Ipnops specimens deriving from Australian waters could not be clearly assigned with confidence to one of the valid Ipnops species based on current morphological and molecular analyses. It seems possible that at least one previously undescribed Ipnops species occurs in Australian waters and further work is required on the genus to resolve uncertainties.
A simple and efficient tool for trapping gravid Anopheles at breeding sites
Publisher: Springer Science and Business Media LLC
Date: 02-07-2011
Abstract: No effective tool currently exists for trapping ovipositing malaria vectors. This creates a gap in our ability to investigate the behavior and ecology of gravid Anopheles . Here we describe a simple trap that collects ovipositing Anopheline and Culicine mosquitoes. It consists of an acetate sheet coated in glue that floats on the water surface. Ten breeding sites were selected in rural Tanzania and 10 sticky traps set in each. These caught a total of 74 gravid Anopheles (54 An. arabiensis , 1 An. gambiae s.s . and 16 un lified) and 1333 gravid Culicines , in just two trap nights. This simple s ling tool provides an opportunity to further our understanding of the behavior and ecology of gravid female Anophelines . It strongly implies that at least two of the major vectors of malaria in Africa land on the water surface during the oviposition process, and demonstrates that Anophelines and Culicines often share the same breeding sites. This simple and efficient trap has clear potential for the study of oviposition site choice and productivity, gravid dispersal, and vector control techniques which use oviposition behavior as a means of disseminating larvicides.
Topographic mapping of the interfaces between human and aquatic mosquito habitats to enable barrier targeting of interventions against malaria vectors
Publisher: The Royal Society
Date: 05-2018
DOI: 10.1098/RSOS.161055
Abstract: Geophysical topographic metrics of local water accumulation potential are freely available and have long been known as high-resolution predictors of where aquatic habitats for immature Anopheles mosquitoes are most abundant, resulting in elevated densities of adult malaria vectors and human infection burden. Using existing entomological and epidemiological survey data, here we illustrate how topography can also be used to map out the interfaces between wet, unoccupied valleys and dry, densely populated uplands, where malaria vector densities and infection risk are focally exacerbated. These topographically identifiable geophysical boundaries experience disproportionately high vector densities and malaria transmission risk, because this is where Anopheles mosquitoes first encounter humans when they search for blood after emerging or ovipositing in the valleys. Geophysical topographic indicators accounted for 67% of variance for vector density but for only 43% for infection prevalence, so they could enable very selective targeting of interventions against the former but not the latter (targeting ratios of 5.7 versus 1.5 to 1, respectively). So, in addition to being useful for targeting larval source management to wet valleys, geophysical topographic indicators may also be used to selectively target adult Anopheles mosquitoes with insecticidal residual sprays, fencing, vapour emanators or space sprays to barrier areas along their fringes.
An affordable, quality-assured community-based system for high-resolution entomological surveillance of vector mosquitoes that reflects human malaria infection risk patterns
Publisher: Springer Science and Business Media LLC
Date: 24-05-2012
Building multi‐layered resilience in a malaria control programme in Dar es Salaam, Tanzania
Publisher: SAGE Publications
Date: 10-09-2010
DOI: 10.1177/146499340901000404
Abstract: This study applied the multi‐layered social resilience framework in the context of an urban malaria control programme by using a qualitative approach. It was found that exchange between and within administrative levels supported resilience‐building processes in terms of mosquito breeding site elimination. ‘Reactive’ and ‘proactive’ capacities were successfully built among programme staff. However, more potential could be tapped among local leaders and household members, by increasing their competence in eliminating breeding sites of malaria vectors. Improving the communication skills of the programme’s field workers might support such processes. Together with local leaders, they could act as multipliers of sensitisation messages.
Sterilising effects of pyriproxyfen on Anopheles arabiensis and its potential use in malaria control
Publisher: Springer Science and Business Media LLC
Date: 17-05-2013
Related Organisations
Related Funding Activities
No related grants have been discovered for Annemiek Vink.