Studies on the feeding habits of Lutzomyia (N.) intermedia (Diptera, Psychodidae), vector of cutaneous leishmaniasis in Brazil

Afonso, Margarete Martins dos Santos; Gomes, A.C; Meneses, Claudio; Rangel, Elizabeth Ferreira

doi:10.1590/s0102-311x2005000600030

Cited by 41 publications

(23 citation statements)

References 13 publications

(19 reference statements)

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“…intermedia and Ny. neivai in this study area are rarely attracted to rodents, which contrasts with the findings of Afonso 39 for Ny. intermedia in the State of Rio de Janeiro.…”

Section: Discussioncontrasting

confidence: 99%

Blood feeding patterns of Nyssomyia intermedia and Nyssomyia neivai (Diptera, Psychodidae) in a cutaneous leishmaniasis endemic area of the Ribeira Valley, State of São Paulo, Brazil

Marassá

Galati

Bergamaschi

et al. 2013

Rev. Soc. Bras. Med. Trop.

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Introduction:The aim of this study was to identify the blood feeding sources of Nyssomyia intermedia (Ny. intermedia) and Nyssomyia neivai (Ny. neivai), which are Leishmania vectors and the predominant sandfl y species in the Ribeira Valley, State of São Paulo, Brazil, an endemic area for cutaneous leishmaniasis. Methods: Specimens were captured monthly between February 2001 and December 2003 on a smallholding and a small farm situated in the Serra district in the Iporanga municipality. The blood meals of 988 engorged females were tested using the avidin-biotin immunoenzymatic enzyme-linked immunosorbent assay (ELISA). Seven blood meal sources were investigated: human, dog, chicken, bovine, pig, horse and rat. Results: The results showed that among the females that fed on one or more blood sources, the respective percentages for Ny. intermedia and Ny. neivai, respectively, were as follows: human (23% and 36.8%), pig (47.4% and 26.4%), chicken (25.7% and 36.8%) and dog (3.9% and 0%), and the differences in the blood sources between the two species were statistically signifi cant (p = 0.043). Conclusions: Both species had predominant reactivity for one or two blood sources, and few showed reactivity indicating three or four sources. Many different combinations were observed among the females that showed reactivity for more than one source, which indicated their opportunistic habits and eclecticism regarding anthropic environmental conditions.

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“…intermedia and Ny. neivai in this study area are rarely attracted to rodents, which contrasts with the findings of Afonso 39 for Ny. intermedia in the State of Rio de Janeiro.…”

Section: Discussioncontrasting

confidence: 99%

Blood feeding patterns of Nyssomyia intermedia and Nyssomyia neivai (Diptera, Psychodidae) in a cutaneous leishmaniasis endemic area of the Ribeira Valley, State of São Paulo, Brazil

Marassá

Galati

Bergamaschi

et al. 2013

Rev. Soc. Bras. Med. Trop.

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“…fischeri (Aguiar et al 1989;, Ny. intermedia (Aguiar et al 1987, Afonso et al 2005, Pa. lanei , Pi. monticola (Hermeto et al 1994;Afonso et al 2007), Ps.…”

Section: Discussionmentioning

confidence: 99%

Phlebotomines (Diptera, Psychodidae) in the Ribeira Valley Speleological Province - 1. Parque Estadual Intervales, state of São Paulo, Brazil

Galati

Marassá

Gonçalves-Andrade³

et al. 2010

Rev. Bras. entomol.

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ABSTRACT. Phlebotomines (Diptera, Psychodidae) in the Ribeira Valley Speleological Province -1. Parque Estadual Intervales (PEI), São Paulo state, Brazil. The identification of the sandfly fauna and investigation of some ecological aspects of its populations in areas frequented by tourists of the PEI, an Atlantic forest reserve with many caves, were the objective of this study. Captures were undertaken monthly from January 2001 to December 2002, with automatic light traps installed in 13 ecotopes, including caves, forests, domiciliary and peridomiciliary environments, and by aspiration in armadillo burrows. Additionally, although not at regular intervals, Shannon traps were installed in forests and anthropic environments, aspirations were made on cave walls, among roots and fallen leaves, and some insects were captured while biting researchers. A total of 891 sandflies belonging to 21 species were captured. Six hundred specimens representing 19 species were captured with light traps, 215 in anthropic (2.24 insects/trap) and 385 in extra-domiciliary (1.46 insects/trap) environments. Brumptomyia troglodytes was the most abundant species (the Standardised Index of Species Abundance = 0.705). Pintomyia monticola predominated in the Shannon traps and showed anthropophilic and diurnal activity. Psathyromyia pascalei predominated in the aspirations; the largest number being in armadillo burrows. Eleven species were captured in caves; although some might be troglophiles, the majority used these ecotopes as resting places. Nyssomyia intermedia, Nyssomyia neivai and Migonemyia migonei, implicated in the transmission of cutaneous leishmaniasis in the Southeastern Brazilian region, were all found, though in such low densities as to suggest minimal risk of the disease in the PEI. KEYWORDS. Atlantic forest; cave; leishmaniasis; vectors.RESUMO. Phlebotominae (Diptera, Psychodidae) na Província Espeleológica do Vale do Ribeira -1. Parque Estadual Intervales (PEI), estado de São Paulo, Brasil. A identificação da fauna flebotomínea e de alguns aspectos ecológicos de suas populações em áreas freqüentadas por turistas no PEI, situado em reserva de mata Atlântica, constituem-se nos objetivos deste estudo. As capturas foram mensais de janeiro/2001 a dezembro/2002, com armadilhas automáticas luminosas em 13 ecótopos, incluindo cavernas, matas e peridomicílio e aspiração em tocas de tatus. Sem intervalos regulares, foram realizadas capturas com armadilhas de Shannon na mata e ambientes antrópicos, aspiração em paredes de cavernas e entre raízes e folhedo e em membros da equipe quando picados por flebotomíneos. No total foram capturados 891 flebotomíneos pertencentes a 21 espécies. Com as armadilhas automáticas luminosas capturou-se 19 espécies e 600 espécimes, 215 em ambiente antrópico (2,24 insetos/armadilha) e 385 em ambiente natural (1,46 insetos/armadilha). Brumptomyia troglodytes foi a mais abundante, com o índice de abundância das espécies padronizado = 0,705. Pintomyia monticola predominou nas armadilhas de Shannon, mostrando-se...

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“…A spatio-temporal overlap of canine and human cases was only observed in this municipality. It is possible that the large number of horses, which are an abundant source of blood meals for phlebotomines (AFONSO et al 2005), in the municipality may facilitate the feeding and multiplication of sandflies, thus causing increased transmission levels. Despite this, no horses presenting lesions or a history of the disease were found.…”

Section: Discussionmentioning

confidence: 99%

Epidemiological profile of cutaneous leishmaniasis in an endemic region in the State of Rio de Janeiro, Brazil

Bustamante¹,

Pereira²,

Schubach³

et al. 2009

RBPV

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The objective of the present study was to investigate the dynamics and profile of American Cutaneous Leishmaniasis (ACL) in an old colonization area in the State of Rio de Janeiro. Health departments of municipalities in the Central-Southern region that had notified cases to the Ministry of Health's Notifiable Diseases Information System between 1997 and 2002 were contacted to obtain data. Out of the 119 cases recorded, 51 patients were visited for an interview and inspection of the environment. The cases of ACL exhibited a profile similar to that observed in other Brazilian cities, affecting individuals of both genders, all age groups and different occupational categories, especially students. Risk activities were reported by 56.9% of the interviewees and 84.3% had never left their homeland. Water courses, chicken coops, bamboo plantations and different fruit trees including banana plants and mango trees were frequently observed in the surrounding environment. Most of the interviewees had not noted any environmental changes prior to becoming sick. Domestic animals were present in all homes, but only dogs presented lesions suggestive of the disease. These were on different occasions that rarely preceded or coincided with the human cases. The possible existence of distinct transmission cycles, i.e. one for canines and another for humans, was discussed.Keywords: American Cutaneous Leishmaniasis, Leishmania (Viannia) braziliensis, zoonotic diseases, epidemiology. ResumoEste estudo teve como objetivo conhecer a dinâmica e o perfil da Leishmaniose Tegumentar Americana (LTA) em uma área de colonização antiga do Estado do Rio de Janeiro. As secretarias de saúde dos municípios da Região Centro-Sul que notificaram casos ao Sistema de Informação de Agravos de Notificação do Ministério da Saúde entre os anos de 1997 e 2002 foram contactadas para obtenção dos dados. Do total de 119 casos registrados, 51 pacientes foram visitados para realização de entrevista e observação do ambiente. A LTA exibiu perfil semelhante ao de outras cidades brasileiras, acometendo indivíduos de ambos os sexos, de todas as faixas etárias e diversas categorias ocupacionais, principalmente estudantes. A realização de atividades de risco foi relatada por 56,9% dos entrevistados e 84,3% não se deslocaram do município de residência. No ambiente circundante havia, frequentemente, cursos d'água, galinheiros, bambuzais e diversas frutíferas, entre elas: bananeiras e mangueiras. A maioria dos entrevistados não observou mudanças ambientais anteriormente ao adoecimento. Animais domésticos estiveram presentes em todos os domicílios, mas apenas cães evidenciaram lesões sugestivas da doença em ocasiões diversas, raramente antecedendo ou coincidindo com casos humanos. A possibilidade de existirem ciclos de transmissão distintos, um canino e outro, humano, foi discutida.

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Studies on the feeding habits of Lutzomyia (N.) intermedia (Diptera, Psychodidae), vector of cutaneous leishmaniasis in Brazil

Cited by 41 publications

References 13 publications

Blood feeding patterns of Nyssomyia intermedia and Nyssomyia neivai (Diptera, Psychodidae) in a cutaneous leishmaniasis endemic area of the Ribeira Valley, State of São Paulo, Brazil

Blood feeding patterns of Nyssomyia intermedia and Nyssomyia neivai (Diptera, Psychodidae) in a cutaneous leishmaniasis endemic area of the Ribeira Valley, State of São Paulo, Brazil

Phlebotomines (Diptera, Psychodidae) in the Ribeira Valley Speleological Province - 1. Parque Estadual Intervales, state of São Paulo, Brazil

Epidemiological profile of cutaneous leishmaniasis in an endemic region in the State of Rio de Janeiro, Brazil

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