Vectorial Capacity
Mostrando 1-12 de 42 artigos, teses e dissertações.
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1. She’s a femme fatale: low-density larval development produces good disease vectors
Two hypotheses for how conditions for larval mosquitoes affect vectorial capacity make opposite predictions about the relationship of adult size and frequency of infection with vector-borne pathogens. Competition among larvae produces small adult females. The competition-susceptibility hypothesis postulates that small females are more susceptible to infectio
Mem. Inst. Oswaldo Cruz. Publicado em: 2014-12
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2. Phlebotomine fauna, natural infection rate and feeding habits of Lutzomyia cruzi in Jaciara, state of Mato Grosso, Brazil
Visceral leishmaniasis (VL) in Brazil is transmitted by the phlebotomine Lutzomyia longipalpis and in some midwestern regions by Lutzomyia cruzi. Studies of the phlebotomine fauna, feeding habits and natural infection rate by Leishmania contribute to increased understanding of the epidemiological chain of leishmaniases and their vectorial capacity. Collectio
Mem. Inst. Oswaldo Cruz. Publicado em: 14/10/2014
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3. Acoustic communication in insect disease vectors
Acoustic signalling has been extensively studied in insect species, which has led to a better understanding of sexual communication, sexual selection and modes of speciation. The significance of acoustic signals for a blood-sucking insect was first reported in the XIX century by Christopher Johnston, studying the hearing organs of mosquitoes, but has receive
Mem. Inst. Oswaldo Cruz. Publicado em: 2013
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4. Vector biology prospects in dengue research
We argue that using more natural blood feeding methods to study mosquito vector competence for dengue viruses and exploring the effect of viral infection on other mosquito life-history traits that influence vectorial capacity will significantly advance our understanding of dengue epidemiology.
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-12
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5. Morphological and morphometrical assessment of spermathecae of Aedes aegypti females
The vectorial capacity of Aedes aegypti is directly influenced by its high reproductive output. Nevertheless, females are restricted to a single mating event, sufficient to acquire enough sperm to fertilize a lifetime supply of eggs. How Ae. aegypti is able to maintain viable spermatozoa remains a mystery. Male spermatozoa are stored within either of two spe
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-09
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6. Vectorial capacity, basic reproduction number, force of infection and all that: formal notation to complete and adjust their classical concepts and equations
A dimensional analysis of the classical equations related to the dynamics of vector-borne infections is presented. It is provided a formal notation to complete the expressions for the Ross' Threshold Theorem, the Macdonald's basic reproduction "rate" and sporozoite "rate", Garret-Jones' vectorial capacity and Dietz-Molineaux-Thomas' force of infection. The a
Memórias do Instituto Oswaldo Cruz. Publicado em: 2012-06
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7. Estudo da capacidade vetorial de Migonemya migonei (França) e de Pintomya fischeri (Pinto) (Diptera: Psychodidae) para Leishmania (Leishmania) infantum chagasi Cunha &Chagas / Study of the vectorial capacity of Migonemyia migonei (França) and of Pintomyia fischeri (Pinto) (Diptera: Psychodidae) as regards Leishmania (Leishmania) infantum chagasi Cunha &Chagas
Introduction - Visceral leishmaniasis has been affecting canine and human populations in various urban centers in São Paulo state and the area of its distribution has been growing steadily. Since its introduction into the state, the infection has been identified in canine and feline populations of Greater São Paulo. Differently from other areas, where the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/11/2011
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8. A longevidade do Aedes aegypti durante a estação chuvosa no município de Fortaleza. / The longevity of Aedes aegypti during the rainy season in Fortaleza.
Dengue fever constitutes a serious world health problem and the state of Ceará has been showing dengue fever since the year of 1986. In Fortaleza city, the capital of the state of Ceará it the was registered a great number of dengue epidemics, highlighting that the incidence of dengue fever is bigger during the rainy season rather than the non-rainy season
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2010
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9. Distribution of sibling species of Anopheles culicifacies s.l. and Anopheles fluviatilis s.l. and their vectorial capacity in eight different malaria endemic districts of Orissa, India
The study was undertaken in eight endemic districts of Orissa, India, to find the members of the species complexes of Anopheles culicifacies and Anopheles fluviatilis and their distribution patterns. The study area included six forested districts (Keonjhar, Angul, Dhenkanal, Ganjam, Nayagarh and Khurda) and two non-forested coastal districts (Puri and Jagats
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-12
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10. Vectorial capacity of Triatoma guasayana (Wygodzinsky & Abalos) (Hemiptera: Reduviidae) compared with two other species of epidemic importance
Triatoma guasayana (Wygodzinsky & Abalos) is a peridomestic triatomine with epidemiological importance in Bolivia, that may play an important role in the transmission of Trypanosoma cruzi (Chagas). In this study, two parameters of vectorial capacity were evaluated: the interval of feeding-defecation time and metacyclogenesis, in adult males and females and n
Neotropical Entomology. Publicado em: 2010-10
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11. Nuevos registros de flebotomíneos (Diptera: Psychodidae), con el hallazgode Lutzomyia longipalpis (Lutz & Neiva, 1912), en los alrededoresde la Ciudad de Sincelejo, Colombia
This is the first report of Lutzomyia longipalpis (Lutz & Neiva, 1912), L. shannoni (Dyar, 1929), L. micropyga (Mangabeira, 1942) and L. atroclavata (Knab, 1913) in the surroundings of an urban settlement in the Caribbean coast. Phlebotomine sandflies were collected by active search using suction devices and mouth aspirators in trees around the city of Since
Biota Neotropica. Publicado em: 2009-12
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12. Estudo do ciclo de vida, fonte alimentar e capacidade vetorial de Lutzomyia whitmani no Maranhão, Brasil / Study the life cycle, food source and vectorial capacity of Lutzomyia whitmani in Maranhao, Brazil
Este estudo teve como objetivo a análise da suscetibilidade experimental de Lutzomyia whitmani para infecção com Leishmania brasiliensis causadora da Leishmaniose Cutânea e Cutâneo-Mucosa e Leishmania amazonensis causadora da Leishmaniose Cutânea Difusa. Para isso, uma colônia de L. whitmani foi estabelecida com a finalidade de fornecer espécimes liv
Publicado em: 2009