نتایج جستجو برای: anopheles
تعداد نتایج: 7323 فیلتر نتایج به سال:
BACKGROUND In order to improve malaria control, and under the aegis of WHO recommendations, many efforts are being devoted to developing new tools for identifying geographic areas with high risk of parasite transmission. Evaluation of the human antibody response to arthropod salivary proteins could be an epidemiological indicator of exposure to vector bites, and therefore to risk of pathogen tr...
Environ. Entomol. 22(S): 978-992 (1993) ABSTRACT Surveys of Anopheles larval habitats in northern Belize were carried out during September 1990 and April 1991. At each site, larvae were collected and the physical and chemical characteristics of water and species composition of aquatic vegetation were measured or estimated. Data on presence or absence of four species, Anopheles albimanus Wiedema...
Plasmodium knowlesi in humans is life threatening, is on the increase and has been reported from most states in Malaysia. Anopheles latens and Anopheles cracens have been incriminated as vectors. Malaria is now a zoonoses and is occurring in malaria free areas of Malaysia. It is also a threat to eco-tourism. The importance of the vectors and possible control measures is reviewed here.
Laboratory tests were conducted to study the response of Anopheles dirus and Aedes albopictus to repellent formulations containing diethyl methylbenzamide (deet) and dimethyl phthalate. Anopheles dirus was tolerant of low concentrations of deet (5-20%), and formulations containing < or = 35% deet provided protection for < or = 90 min. In contrast, Ae. albopictus was sensitive to these formulati...
The devastating consequences of malaria are well known but many mysteries remain about its key protagonists, a handful of Anopheles species. New work provides a framework for solving such puzzles, by generation and analysis of whole genome assemblies for 16 Anopheles species, with genomic flexibility a key emergent theme.
A phylogeny of the mosquito subfamily Anophelinae was inferred from fragments of two protein-coding nuclear genes, G6pd (462 bp) and white (801 bp), and from a combined data set (2,136 bp) that included a portion of the mitochondrial gene ND5 and the D2 region of the ribosomal 28S gene. Sixteen species from all three anopheline genera and six Anopheles subgenera were sampled, along with six spe...
The need to understand diversity in Anopheles mosquitoes to win the fight against malaria first became apparent with the paradox of ‘anophelism without malaria’, as it became evident that there is a vast diversity of Anopheles species and that not all species transmit malaria [1]. For example, in Europe it was eventually deduced that the mosquito Anopheles maculipennis existed as a species comp...
BACKGROUND The association between placental malaria (PM) and first peripheral parasitaemias in early infancy was assessed in Tori Bossito, a rural area of Benin with a careful attention on transmission factors at an individual level. METHODOLOGY Statistical analysis was performed on 550 infants followed weekly from birth to 12 months. Malaria transmission was assessed by anopheles human land...
We used recently developed microsatellite DNA markers to explore the population genetic structure of the malaria vector, Anopheles moucheti. Polymorphism at 10 loci was examined to assess level of genetic differentiation between four A. moucheti populations from South Cameroon situated 65-400 km apart. All microsatellite loci were highly polymorphic with a number of distinct alleles per locus r...
Continuous monitoring of vector species composition, abundance, dynamics, feeding pattern, and host finding strategy is the base to determine when, what, and how control should be implemented. Thus, this study was conducted to assess entomological parameters of anopheline mosquitoes in nine villages in Seka district, southwestern Ethiopia, from June to December 2012. Mosquito collection was car...
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