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Mosquitoes, Lymphatic Filariasis, and Public Health: A Systematic Review of Anopheles and Aedes Surveillance Strategies

Lymphatic Filariasis (LF) affects over 120 million people in 72 countries, with sub-periodic filariasis common in the Pacific. has three physiological races, each with a unique microfilarial periodicity, and each race is isolated to a specific geographical region. Sub-periodic . is transmitted by va...

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Published in:Pathogens (Basel) 2023-11, Vol.12 (12), p.1406
Main Authors: Bhuvaneswari, Arumugam, Shriram, Ananganallur Nagarajan, Raju, Kishan Hari K, Kumar, Ashwani
Format: Article
Language:English
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Summary:Lymphatic Filariasis (LF) affects over 120 million people in 72 countries, with sub-periodic filariasis common in the Pacific. has three physiological races, each with a unique microfilarial periodicity, and each race is isolated to a specific geographical region. Sub-periodic . is transmitted by various mosquito species, with and being the primary vectors in Samoa. The and groups are also important vectors in the South Pacific Islands. Anopheles species are important vectors of filariasis in rural areas of Asia and Africa. The complex, , and the group are the most important vectors of . . These vectors exhibit indoor nocturnal biting behaviour and breed in a variety of habitats, including freshwater, saltwater, and temporary water bodies. Effective vector surveillance is central to LF control and elimination programs. However, the traditional Human Landing Collection (HLC) method, while valuable, poses ethical concerns and risks to collectors. Therefore, this review critically analyses alternative trapping tools for and vectors in LF-endemic regions. We looked at 14 research publications that discussed vector trapping methods. Pyrethrum Spray Catches (PSC), one of the seven traps studied for LF vectors, was revealed to be the second most effective strategy after HLC, successfully catching vectors in Nigeria, Ghana, Togo, and Burkina Faso. The PSC method has several drawbacks, such as the likelihood of overlooking exophilic mosquitoes or underestimating populations. However, exit traps offered hope for capturing exophilic mosquitoes. populations could also be sampled using the Anopheles Gravid Trap (AGT). In contrast, the effectiveness of the Double Net Traps (DNT) and the CDC Light Trap (CDC LT) varied. Gravid mosquito traps like the OviArt Gravid Trap (AGT) were shown to be useful tools for identifying endophilic and exophilic vectors during the exploration of novel collection techniques. The Stealth trap (ST) was suggested for sampling mosquitoes, although specimen damage may make it difficult to identify the species. Although it needs more confirmation, the Ifakara Tent Trap C design (ITT-C) showed potential for outdoor mosquito sampling in Tanzania. Furvela tent traps successfully captured a variety of species and are appropriate for use in a variety of eco-epidemiological settings. By contrast, for LF vectors, no specific sampling tool was identified for , necessitating further research and development. However, traps like the Duplex cone trap, Resti
ISSN:2076-0817
2076-0817
DOI:10.3390/pathogens12121406