Señales físico químicas involucradas en la búsqueda de hospederos y en la inducción de picadura por mosquitos

Torres-Estrada, José Luis; Rodrı́guez, Mario H.

doi:10.1590/s0036-36342003000600010

Cited by 12 publications

(4 citation statements)

References 74 publications

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“…Although reduced access to potable water reflects poor economic household conditions; the limited availability of this basic essential service itself may reduce the frequency of personal hygiene events (such as hand-washing and bathing) and clothing-washing practices [ 43 ], increasing the mosquito-attracting compounds on the skin and clothes and consequently the risk of being bitten by infectious mosquitoes [ 41 ]. Similarly, animal ownership may also increase malaria risk in HHs by increasing the attraction of zoophilic mosquitoes (under stimulus of CO2 and octenol) and consequently the human-vector contact rate [ 44 ]. Entomological observations have found that the host availability and other ecological conditions can influence the host choice of An.…”

Section: Discussionmentioning

confidence: 99%

Plasmodium vivax malaria at households: spatial clustering and risk factors in a low endemicity urban area of the northwestern Peruvian coast

Aguirre

Ponce

Carrasco-Escobar

et al. 2015

Malar J

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BackgroundPeru has presented a decreasing malaria trend during the last decade, particularly in areas on northwestern coast; however, a limited number of cases continues to be reported yearly mainly in malaria hotspots.MethodsA two-phase study was conducted to identify spatial and temporal clusters of incident Plasmodium vivax malaria, as well as to determine risk factors associated with households (HH) presenting P. vivax malaria episodes in an urban area of the northwestern Peruvian Coast from June 2008 to May 2010. In the first stage, a full census of the study population was conducted, including geo-referencing of reported P. vivax episodes. In the second stage, a population-based case–control study allowed the identification of risk factors associated with HHs reporting episodes. A total of 117 case HHs with reported P. vivax and 117 control HHs without malaria episodes were assessed. A semi-structured questionnaire was used to interview the head of households and to collect data on HH location and structure, availability of public services, preventive malaria measures, family member with outdoor occupation (farmer, moto-taxi driver), and other HH characteristics. Univariate and multivariate logistic regression analyses were performed to determine case-HH risk factors. SaTScan was used to detect spatial and temporal P. vivax malaria clusters.ResultsThe most likely spatial cluster of malaria incidence included 1,040 people (22.4% of total population) in 245 HHs (24.6% of total HHs) accounting for 283 malaria episodes (40.1% of total episodes) during the study period (RR = 2.3, p < 0.001). A temporal cluster was also identified from April 12, 2009 to July 4, 2009 accounting for 355 malaria episodes (50.4% of total episodes) (RR = 7.2, p = 0.001). Factors significantly associated with case HHs compared with control HHs were: proximity to water drain < 200 metres (OR = 2.3, 95% CI: 1.3, 4.0); HH size >5 individuals (OR = 1.8, 95% CI: 1.0, 3.2); lack of potable water (OR = 1.8, 95% CI: 1.1, 3.2); and having domestic and peridomestic animals (OR = 3.6, 95% CI: 1.3, 9.5).ConclusionPlasmodium vivax malaria incidence is highly heterogeneous in space and time in the urban study area with important geographical and housing risk factors associated with symptomatic episodes.

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Section: Discussionmentioning

confidence: 99%

Plasmodium vivax malaria at households: spatial clustering and risk factors in a low endemicity urban area of the northwestern Peruvian coast

Aguirre

Ponce

Carrasco-Escobar

et al. 2015

Malar J

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“… 147 These compounds are secondary lipid oxidation products which have been linked to host identification in biting insects such as mosquitoes and midges. 148 , 149 , 150 The concentration of these compounds in mucus differs between different families of Atlantic salmon (37%–58%) fed the same diet and is associated with higher lice counts in individuals. 151 …”

Section: Biological Mechanisms Affording Host Resistancementioning

confidence: 99%

Applying genetic technologies to combat infectious diseases in aquaculture

Robinson

Robledo

Sveen

et al. 2022

Reviews in Aquaculture

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Disease and parasitism cause major welfare, environmental and economic concerns for global aquaculture. In this review, we examine the status and potential of technologies that exploit genetic variation in host resistance to tackle this problem. We argue that there is an urgent need to improve understanding of the genetic mechanisms involved, leading to the development of tools that can be applied to boost host

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“…Outro fator que pode explicar a maior ocorrência de LV em crianças de 1 a 4 anos diz respeito ao fato de que os indivíduos nessa faixa etária apresentam uma taxa respiratória mais rápida do que a dos adultos (Fleming et al, 2011), implicando em uma maior liberação de gás carbônico na atmosfera, fator este que é quimiotático para vetores hematófagos, como espécies do gênero Lutzomyia. Segundo Torres et al (2003), a percepção da presença de um possível hospedeiro por parte de dípteros hematófagos se inicia com a detecção de gás carbônico liberado por um mamífero vertebrado, implicando dessa forma, em uma maior afinidade para exercer a hematofagia em crianças na faixa etária supracitada.…”

Section: Resultsunclassified

Historical trend of Visceral Leishmaniasis in Brazil: epidemiological aspects and perspectives for the future

Ribeiro,

Mattos,

Salgado

et al. 2023

RSD

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Visceral leishmaniasis (VL) still persists as an important public health problem in Brazil and has shown signs of increasing cases in recent years. Therefore, in the present work, a classic epidemiological research of quantitative, descriptive and exploratory character, the objective of this study was to evaluate the spatiotemporal distribution of this protozoal disease in the country and its different socio-administrative regions, while observing its distribution profile by age and gender, using secondary databases available on government websites. It was observed that the northern and northeastern regions, particularly the northern region, were the most affected, possibly due to environmental factors such as climatic conditions, density of forested areas, and diversity of sand fly species that prevail in this region. It was also possible to observe a significantly higher number of cases among men and children, possibly related to the activity patterns that men engage in and physiological and immunological factors related to children. The results obtained allow us to emphasize the design of prevention strategies aimed at minimizing the morbidity resulting from VL, such as treatment and population control of dogs, as well as the implementation of educational measures and strategic vector control.

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Señales físico químicas involucradas en la búsqueda de hospederos y en la inducción de picadura por mosquitos

Abstract: Señales físico-químicas en búsqueda y picadura de hospederos por mosquitos ARTÍCULO DE REVISIÓN

Cited by 12 publications

References 74 publications

Plasmodium vivax malaria at households: spatial clustering and risk factors in a low endemicity urban area of the northwestern Peruvian coast

Plasmodium vivax malaria at households: spatial clustering and risk factors in a low endemicity urban area of the northwestern Peruvian coast

Applying genetic technologies to combat infectious diseases in aquaculture

Historical trend of Visceral Leishmaniasis in Brazil: epidemiological aspects and perspectives for the future

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