نتایج جستجو برای: larviciding
تعداد نتایج: 127 فیلتر نتایج به سال:
BACKGROUND & OBJECTIVES In the present study, an attempt was made to find reasons of ineffectiveness of indoor residual spray to interrupt malaria transmission by investigating the behaviour of two variants of Anopheles stepnesi, viz. type form and mysorensis in rural areas of Rajasthan, India. METHODS Both low malarious (DDT spray from 1958 to 1976) and high malarious (DDT spray from 1958 to...
Dengue fever and Chagas disease are important public health problems in Latin America. Dengue is a re-emerging viral disease, mainly transmitted by Aedes aegyptii mosquitoes, leading to an increasing number of outbreaks notably in urban areas of the continent. Chagas disease, a parasitic disease transmitted by Triatomine bugs, is a major cause of morbidity and mortality among the continent’s ru...
Vectors are living organisms that serve as vehicles to transmit a pathogen (a disease-causing agent like a virus or parasite) from a host to a human or to an animal or both, and vector-borne diseases are infectious diseases or illness transmitted through insects. This article combines practical information from successful vector control programs, including early use of chemicals and recent rese...
Due to the socioeconomic impact of human onchocerciasis (commonly referred to as river blindness) in West Africa, the Onchocerciasis Control Programme in the Volta River Basin (OCP) was instituted [1]. This initial programme started in 1975 and covered seven West African countries: Benin, Burkina Faso, Cote d’Ivoire, Ghana, Mali, Niger, and Togo. However, later evidence indicated that endemic a...
During the first 6 months of 2016, large outbreaks of Zika virus disease caused by local mosquito-borne transmission occurred in Puerto Rico and other U.S. territories, but local mosquito-borne transmission was not identified in the continental United States (1,2). As of July 22, 2016, the Florida Department of Health had identified 321 Zika virus disease cases among Florida residents and visit...
BACKGROUND The massive scale-up of insecticide-treated nets (ITNs) and indoor residual spraying (IRS) has led to a substantial increase in malaria vector insecticide resistance as well as in increased outdoor transmission, both of which hamper the effectiveness and efficiency of ITN and IRS. Long-lasting microbial larvicide can be a cost-effective new supplemental intervention tool for malaria ...
BACKGROUND In many parts of the world, salt marshes play a key ecological role as the interface between the marine and the terrestrial environments. Salt marshes are also exceedingly important for public health as larval habitat for mosquitoes that are vectors of disease and significant biting pests. Although grid ditching and pesticides have been effective in salt marsh mosquito control, marsh...
There is growing awareness on the effects of insecticides used for controlling the vectors spreading human diseases. Manipulating or introducing of a self reproducing predator into the ecosystem may present continual biological control of vector populations. In order to achieve an acceptable control of the primary Aedes aegypti (Linnaeus) and secondary Aedes albopictus (Skuse) mosquitoes (Dipte...
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