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Silva CJD, Lima KPB, Monteiro JFDCLS, Silva AKSFD, Silva FJD, Pereira AMDS, Hernandes VP, Silva EDD, Silva CSDAGE, Brandão Filho SP, Brito MEFD. Leishmania V. braziliensis infection in asymptomatic domestic animals within an endemic region in the Northeast of Brazil. Rev Soc Bras Med Trop 2022; 55:e0600. [PMID: 35976338 PMCID: PMC9405948 DOI: 10.1590/0037-8682-0600-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 04/12/2022] [Indexed: 11/26/2022] Open
Abstract
Background: American cutaneous leishmaniasis is a commonly neglected, vector-borne tropical parasitic disease that is a major public health concern in Brazil. Leishmania (Viannia) braziliensis is the main species associated with the disease. Accurate diagnosis is based on epidemiological surveillance, clinical assessment, and laboratory testing. Leishmania (V.) braziliensis has been detected in several wild and synanthropic mammals. Their epidemiological role has not been entirely elucidated. This study aimed to assess potential L. braziliensis infections in asymptomatic domestic animals, by molecular and serological testing in endemic areas, in the metropolitan region of Recife. Methods: Blood samples and conjunctival fluids were collected from 232 animals (canids, felids, equines, and caprines) for the detection of L. braziliensis using molecular tests (conventional and real-time polymerase chain reaction [PCR and qPCR]). For immunological detection, blood samples from 115 dogs were assessed using enzyme-linked immunosorbent assay. Results: Real-time quantitative PCR showed positive results for blood and conjunctival samples in all investigated species. The results of the blood and conjunctival samples were 68.2% and 26.9% in Canis familiaris, 100% and 41.7% in Felis catus, 77.3% and 30.8% in Equus caballus/Equus asinus, and 50% and 33.3% in Capra hircus samples, respectively. Conclusions: Results from this study adds valuable information to our understanding of the role of asymptomatic domestic animals, L. braziliensis life cycle, and American cutaneous leishmaniasis in Northeast Brazil.
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Affiliation(s)
- Claudio Júlio da Silva
- Fundação Oswaldo Cruz, Instituto Aggeu Magalhães, Departamento de Imunologia, Laboratório de Imunoparasitologia, Recife, PE, Brasil.,Núcleo de Vigilância em Saúde de Moreno, Moreno, PE, Brasil.,Universidade Fernando Pessoa, Faculdade de Ciência e Tecnologia, Porto, Portugal
| | - Karina Patricia Baracho Lima
- Fundação Oswaldo Cruz, Instituto Aggeu Magalhães, Departamento de Imunologia, Laboratório de Imunoparasitologia, Recife, PE, Brasil
| | | | | | - Fernando José da Silva
- Fundação Oswaldo Cruz, Instituto Aggeu Magalhães, Departamento de Imunologia, Laboratório de Imunoparasitologia, Recife, PE, Brasil
| | - Allana Maria de Souza Pereira
- Fundação Oswaldo Cruz, Instituto Aggeu Magalhães, Departamento de Imunologia, Laboratório de Imunoparasitologia, Recife, PE, Brasil
| | - Valéria Pereira Hernandes
- Fundação Oswaldo Cruz, Instituto Aggeu Magalhães, Departamento de Imunologia, Laboratório de Imunoparasitologia, Recife, PE, Brasil
| | - Elis Dionísio da Silva
- Fundação Oswaldo Cruz, Instituto Aggeu Magalhães, Departamento de Imunologia, Laboratório de Imunoparasitologia, Recife, PE, Brasil
| | - Cláudia Sofia de Assunção Gonçalves E Silva
- Universidade Fernando Pessoa, Faculdade de Ciência e Tecnologia, Porto, Portugal.,Universidade Fernando Pessoa, Centro de Investigação em Biomedicina, Unidade de Investigação em Energia, Ambiente e Saúde, Porto, Portugal
| | - Sinval Pinto Brandão Filho
- Fundação Oswaldo Cruz, Instituto Aggeu Magalhães, Departamento de Imunologia, Laboratório de Imunoparasitologia, Recife, PE, Brasil
| | - Maria Edileuza Felinto de Brito
- Fundação Oswaldo Cruz, Instituto Aggeu Magalhães, Departamento de Imunologia, Laboratório de Imunoparasitologia, Recife, PE, Brasil
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2
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Ximenes RADA, Albuquerque MDFPMD, Martelli CMT, Araújo TVBD, Miranda Filho DDB, Souza WVD, Ichihara MYT, Lira PICD, Kerr LRFS, Aquino EM, Silva AAMD, Almeida RLFD, Kendall C, Pescarini JM, Brandão Filho SP, Almeida-Filho N, Oliveira JFD, Teles C, Jorge DCP, Santana G, Gabrielli L, Rodrigues MM, Silva NJD, Souza RFDS, Silva VAFD, Barreto ML. [Covid-19 in the Northeast of Brazil: from lockdown to the relaxation of social distancing measures]. Cien Saude Colet 2021; 26:1441-1456. [PMID: 33886772 DOI: 10.1590/1413-81232021264.39422020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 01/07/2021] [Indexed: 12/23/2022] Open
Abstract
Even in the period when the Covid-19 pandemic was on the rise in the Northeast of Brazil, the relaxation of social distancing measures was introduced. The scope of the study is to assess, in the light of the epidemiological-sanitary situation in the region, the suitability of relaxation of social distancing measures. Based on the WHO guidelines for relaxation of social distancing, operational indicators were created and analyzed for each guideline in the context of the Northeast. To analyze the behavior of the epidemic, according to selected indicators, Joinpoint trend analysis techniques, heat maps, rate ratios and time trends between capitals and the state interior were compared. The weekly growth peak of the epidemic occurred in May-July 2020 (epidemiological weeks 19 to 31). In most capitals, there was no simultaneous downward trend in the number of cases and deaths in the 14 days prior to flexibilization. In all states the number of tests performed was insufficient. In epidemiological week 24, the state percentages of ICU/Covid-19 bed occupancy were close to or above 70%. The epidemiological situation of the nine Northeastern state capitals analyzed here did not meet criteria and parameters recommended by the World Health Organization for the relaxation of social distancing measures.
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Affiliation(s)
- Ricardo Arraes de Alencar Ximenes
- Universidade Federal de Pernambuco. Av. Prof. Moraes Rêgo s/n, Cidade Universitária. 50670-420 Recife PE Brasil. .,Universidade de Pernambuco. Recife PE Brasil
| | | | | | | | | | | | - Maria Yury Travassos Ichihara
- Centro de Integração de Dados e Conhecimentos para Saúde, Instituto Gonçalo Moniz, Fiocruz Bahia. Salvador BA Brasil
| | - Pedro Israel Cabral de Lira
- Universidade Federal de Pernambuco. Av. Prof. Moraes Rêgo s/n, Cidade Universitária. 50670-420 Recife PE Brasil.
| | | | | | | | | | - Carl Kendall
- Universidade Federal do Ceará. Fortaleza CE Brasil
| | - Julia M Pescarini
- Centro de Integração de Dados e Conhecimentos para Saúde, Instituto Gonçalo Moniz, Fiocruz Bahia. Salvador BA Brasil
| | | | | | - Juliane Fonseca de Oliveira
- Centro de Integração de Dados e Conhecimentos para Saúde, Instituto Gonçalo Moniz, Fiocruz Bahia. Salvador BA Brasil
| | - Carlos Teles
- Centro de Integração de Dados e Conhecimentos para Saúde, Instituto Gonçalo Moniz, Fiocruz Bahia. Salvador BA Brasil
| | | | - Guilherme Santana
- Centro de Integração de Dados e Conhecimentos para Saúde, Instituto Gonçalo Moniz, Fiocruz Bahia. Salvador BA Brasil
| | | | | | - Natanael Jesus da Silva
- Centro de Integração de Dados e Conhecimentos para Saúde, Instituto Gonçalo Moniz, Fiocruz Bahia. Salvador BA Brasil
| | - Rafael Felipe da Silva Souza
- Centro de Integração de Dados e Conhecimentos para Saúde, Instituto Gonçalo Moniz, Fiocruz Bahia. Salvador BA Brasil
| | | | - Maurício Lima Barreto
- Centro de Integração de Dados e Conhecimentos para Saúde, Instituto Gonçalo Moniz, Fiocruz Bahia. Salvador BA Brasil
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3
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Teixeira MG, Kerr LRFS, Ximenes RADA, Almeida RLFD, Ichihara MY, Albuquerque MDFMD, Aquino EML, Werneck GL, Carmo EH, Medronho RA, Oliveira WKD, Henriques CMP, Kendall C, Silva AAMD, Almeida Filho NM, Souza WVD, Veras MADSM, Penna GO, Silva GAE, Brandão Filho SP, Barreto ML. Fortalecer as atividades de informação e vigilância epidemiológica é essencial e urgente para reduzir a força de transmissão do SARS-CoV-2. Rev bras epidemiol 2021. [DOI: 10.1590/1980-549720210049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | | | | | | | | | | | - Estela M L Aquino
- Universidade Federal da Bahia, Brasil; Fundação Oswaldo Cruz, Brasil
| | | | | | | | | | | | - Carl Kendall
- Universidade Federal do Ceará, Brasil; Tulane School of Public Health and Tropical Medicine, Estados Unidos da América
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4
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Melo MGND, Morais RCSD, Goes TCD, Silva RPE, Morais RFD, Guerra JADO, Brito MEFD, Brandão Filho SP, Cavalcanti MDP. Clinical and epidemiological profiles of patients with American cutaneous leishmaniasis from the states of Pernambuco and Amazonas, Brazil. Rev Soc Bras Med Trop 2020; 53:e20200083. [PMID: 33263681 PMCID: PMC7723372 DOI: 10.1590/0037-8682-0083-2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 09/17/2020] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION: Brazil has a high number of cases of American cutaneous leishmaniasis (ACL)
in the north and northeast regions. Therefore, continuous surveillance of
environmental and socioeconomic factors in endemic areas is needed to
develop strategic control measures. This study aimed to describe the
clinical and epidemiological profiles of patients with ACL. METHODS: All patients were from the states of Amazonas and Pernambuco, and
examinations were carried out between 2015 and 2018. All patients had a
clinical and epidemiological history compatible with ACL after positive
diagnostic tests. Information obtained from medical records included gender,
employment activity, level of education, age, and number and sites of
lesions. RESULTS: A total of 213 patients were included, of whom 30.98% were female and 69.02%
were male. The main employment activity was agriculture (27.56%). The most
common level of education was elementary (62.42%). The average age was
approximately 39 years. The majority of the patients presented only with one
lesion (54.87%), and legs/feet were the most commonly affected area
(48.25%), followed by the arms/hands (44.75%). CONCLUSIONS: These data demonstrated that irrespective of the patients’ places of origin,
interventions need to be focused on men of economically productive age, in
view of the high risk of exposure to the vector in this group. Education
activities need to be directed to farmers about the importance of protection
against ACL vectors during work. Such information must also be directed to
employers as a way of implementing and maintaining appropriate working
conditions and stepping up vector control.
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Kerr L, Kendall C, Silva AAMD, Aquino EML, Pescarini JM, Almeida RLFD, Ichihara MY, Oliveira JF, Araújo TVBD, Santos CT, Jorge DCP, Miranda Filho DDB, Santana G, Gabrielli L, Albuquerque MDFPMD, Almeida-Filho N, Silva NDJ, Souza R, Ximenes RADA, Martelli CMT, Brandão Filho SP, Souza WVD, Barreto ML. COVID-19 in Northeast Brazil: achievements and limitations in the responses of the state governments. Cien Saude Colet 2020; 25:4099-4120. [PMID: 33027347 DOI: 10.1590/1413-812320202510.2.28642020] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 08/10/2020] [Indexed: 11/22/2022] Open
Abstract
The COVID-19 pandemic has been most severe in the poorest regions of Brazil, such as the states of the Northeast Region. The lack of national policies for pandemic control forced state and municipal authorities to implement public health measures. The aim of this study is to show the effect of these measures on the epidemic. The highest incidence of COVID-19 among the nine states in the Northeast was recorded in Sergipe, Paraíba and Ceará. Piauí, Paraíba and Ceará were the states that most tested. Factors associated with transmission included the high proportion of people in informal work. States with international airports played an important role in the entry of the virus and the initial spread, especially Ceará. All states applied social distancing measures, banned public events and closed schools. The response was a significant increase in social distancing, especially in Ceará and Pernambuco, a decline in the reproduction rate (Rt), and a separation of the curve of observed cases versus expected cases if the non-pharmacological interventions had not been implemented in all states. Poverty, inequality, and the high rates of informal work provide clues to the intensity of COVID-19 in the region. On the other hand, the measures taken early by the governments mitigated the effects of the pandemic.
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Affiliation(s)
- Ligia Kerr
- Programa de Pós-Graduação em Saúde Coletiva, Departamento de Saúde Comunitária, Faculdade de Medicina, Universidade Federal do Ceará. R. Professor Costa Mendes 1608, Bairro Rodolfo Teófilo. 60430-140 Fortaleza CE Brasil.
| | - Carl Kendall
- Programa de Pós-Graduação em Saúde Coletiva, Departamento de Saúde Comunitária, Faculdade de Medicina, Universidade Federal do Ceará. R. Professor Costa Mendes 1608, Bairro Rodolfo Teófilo. 60430-140 Fortaleza CE Brasil. .,School of Public Health and Tropical Medicine, Tulane University. New Orleans LA USA
| | | | - Estela Maria L Aquino
- Instituto de Saúde Coletiva, Universidade Federal da Bahia (UFBA). Salvador BA Brasil
| | - Julia M Pescarini
- Centro de Integração de Dados e Conhecimentos para Saúde, Fundação Oswaldo Cruz (Fiocruz). Salvador BA Brasil
| | | | - Maria Yury Ichihara
- Centro de Integração de Dados e Conhecimentos para Saúde, Fundação Oswaldo Cruz (Fiocruz). Salvador BA Brasil
| | - Juliane F Oliveira
- Centro de Integração de Dados e Conhecimentos para Saúde, Fundação Oswaldo Cruz (Fiocruz). Salvador BA Brasil
| | | | - Carlos Teles Santos
- Centro de Integração de Dados e Conhecimentos para Saúde, Fundação Oswaldo Cruz (Fiocruz). Salvador BA Brasil
| | | | | | - Guilherme Santana
- Centro de Integração de Dados e Conhecimentos para Saúde, Fundação Oswaldo Cruz (Fiocruz). Salvador BA Brasil
| | - Ligia Gabrielli
- Instituto de Saúde Coletiva, Universidade Federal da Bahia (UFBA). Salvador BA Brasil
| | | | - Naomar Almeida-Filho
- Instituto de Saúde Coletiva, Universidade Federal da Bahia (UFBA). Salvador BA Brasil
| | - Natanael de Jesus Silva
- Centro de Integração de Dados e Conhecimentos para Saúde, Fundação Oswaldo Cruz (Fiocruz). Salvador BA Brasil
| | - Rafael Souza
- Centro de Integração de Dados e Conhecimentos para Saúde, Fundação Oswaldo Cruz (Fiocruz). Salvador BA Brasil
| | | | | | | | | | - Maurício Lima Barreto
- Centro de Integração de Dados e Conhecimentos para Saúde, Fundação Oswaldo Cruz (Fiocruz). Salvador BA Brasil
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Martelli CMT, Albuquerque MDFPMD, Souza WVD, Brandão Filho SP. Zika virus infection three years after the microcephaly outbreak: A meeting report. Rev Soc Bras Med Trop 2019; 52:e20190203. [PMID: 31340378 DOI: 10.1590/0037-8682-0203-2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 05/03/2019] [Indexed: 05/30/2023] Open
Affiliation(s)
- Celina Maria Turchi Martelli
- Grupo de Pesquisa da Epidemia de Microcefalia (MERG), Consórcio Internacional ZikaPlan, Instituto Aggeu Magalhães, Fundação Oswaldo Cruz (Fiocruz), Recife, PE, Brasil
| | | | - Wayner Vieira de Souza
- Grupo de Pesquisa da Epidemia de Microcefalia (MERG), Consórcio Internacional ZikaPlan, Instituto Aggeu Magalhães, Fundação Oswaldo Cruz (Fiocruz), Recife, PE, Brasil
| | - Sinval Pinto Brandão Filho
- Grupo de Pesquisa da Epidemia de Microcefalia (MERG), Consórcio Internacional ZikaPlan, Instituto Aggeu Magalhães, Fundação Oswaldo Cruz (Fiocruz), Recife, PE, Brasil
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Guimarães VCFV, Pruzinova K, Sadlova J, Volfova V, Myskova J, Filho SPB, Volf P. Lutzomyia migonei is a permissive vector competent for Leishmania infantum. Parasit Vectors 2016; 9:159. [PMID: 26988559 PMCID: PMC4797322 DOI: 10.1186/s13071-016-1444-2] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 03/10/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Leishmania infantum is the most widespread etiological agent of visceral leishmaniasis (VL) in the world, with significant mortality rates in human cases. In Latin America, this parasite is primarily transmitted by Lutzomyia longipalpis, but the role of Lutzomyia migonei as a potential vector for this protozoan has been discussed. Laboratory and field investigations have contributed to this hypothesis; however, proof of the vector competence of L. migonei has not yet been provided. In this study, we evaluate for the first time the susceptibility of L. migonei to L. infantum. METHODS Females of laboratory-reared L. migonei were fed through a chick-skin membrane on rabbit blood containing L. infantum promastigotes, dissected at 1, 5 and 8 days post-infection (PI) and checked microscopically for the presence, intensity and localisation of Leishmania infections. In addition, morphometric analysis of L. infantum promastigotes was performed. RESULTS High infection rates of both L. infantum strains tested were observed in L. migonei, with colonisation of the stomodeal valve already on day 5 PI. At the late-stage infection, most L. migonei females had their cardia and stomodeal valve colonised by high numbers of parasites, and no significant differences were found compared to the development in L. longipalpis. Metacyclic forms were found in all parasite-vector combinations since day 5 PI. CONCLUSIONS We propose that Lutzomyia migonei belongs to sand fly species permissive to various Leishmania spp. Here we demonstrate that L. migonei is highly susceptible to the development of L. infantum. This, together with its known anthropophily, abundance in VL foci and natural infection by L. infantum, constitute important evidence that L. migonei is another vector of this parasite in Latin America.
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Affiliation(s)
| | - Katerina Pruzinova
- />Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Jovana Sadlova
- />Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Vera Volfova
- />Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Jitka Myskova
- />Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Sinval Pinto Brandão Filho
- />Department of Immunology, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz (Fiocruz), Recife, Pernambuco Brazil
| | - Petr Volf
- />Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic
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Guimarães VCFV, Costa PL, Silva FJD, Melo FLD, Dantas-Torres F, Rodrigues EHG, Brandão Filho SP. Molecular detection of Leishmania in phlebotomine sand flies in a cutaneous and visceral leishmaniasis endemic area in northeastern Brazil. Rev Inst Med Trop Sao Paulo 2014; 56:357-60. [PMID: 25076439 PMCID: PMC4131824 DOI: 10.1590/s0036-46652014000400015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 02/10/2014] [Indexed: 11/25/2022] Open
Abstract
Several phlebotomine sand fly species have been regarded as putative or
proven vectors of parasites of the genus Leishmania in Brazil, but
data for the northeastern region remains incipient. In this study, a total of 600
phlebotomine sand flies were grouped in pools of 10 specimens each and tested by a
Leishmania genus-specific PCR and by a PCR targeting
Leishmania (Leishmania)
infantum. Fourteen out of 60 pools were positive by the
genus-specific PCR, being five pools of L. migonei, seven of
L. complexa, one of L. sordellii and one of
L. naftalekatzi, which correspond to a minimal infection rate of
2.3% (14/600). Our results, associated with their known anthropophily and their
abundance, suggest the participation of L. migonei and L.
complexa as vectors of Leishmania in northeastern
Brazil. Remarkably, this is the first time in this country that the detection of
Leishmania DNA in L. sordellii and L.
naftalekatzi has been reported, but future studies are necessary to
better understand the significance of these findings.
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Affiliation(s)
| | - Pietra Lemos Costa
- Department of Immunology, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Pernambuco, Brazil
| | - Fernando José da Silva
- Department of Immunology, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Pernambuco, Brazil
| | - Fábio Lopes de Melo
- Department of Parasitology, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Pernambuco, Brazil
| | - Filipe Dantas-Torres
- Department of Immunology, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Pernambuco, Brazil
| | | | - Sinval Pinto Brandão Filho
- Department of Immunology, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Pernambuco, Brazil
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Jeraldo VDLS, Góes MADO, Casanova C, Melo CMD, Araújo EDD, Filho SPB, Cruz DER, Pinto MC. Sandfly fauna in an area endemic for visceral leishmaniasis in Aracaju, State of Sergipe, Northeast Brazil. Rev Soc Bras Med Trop 2012; 45:318-22. [DOI: 10.1590/s0037-86822012000300008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Accepted: 03/23/2012] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION: In recent years, visceral leishmaniasis, a major public health problem, has been spreading from the rural to urban areas in many areas of Brazil, including Aracaju, the capital of the State of Sergipe. However, there are no studies of the sandfly fauna in this municipality or its variation over the year. METHODS: Phlebotomine sandflies were collected from a rural area of Aracaju from September 2007 to July 2009. Modified CDC ultra-violet (UV) light traps were used to evaluate sandfly monthly distribution and their presence in the domestic and peridomestic environments. RESULTS: The most abundant species was Lutzomyia longipalpis (90.4%) followed by Evandromyia lenti (9.6%). A chicken shed trap site had the highest proportion of L. longipalpis (51.1%) and large numbers of L. longipalpis were also collected in the houses closest to the chicken shed. There was a positive correlation between monthly rainfall and L. longipalpis abundance. CONCLUSIONS: Lutzomyia longipalpis is the most abundant species and is probably the main vector of the visceral leishmaniasis agent in the rural area of Aracaju. An increase in L. longipalpis frequency was observed during the rainy season. The peridomicile-intradomicile observations corroborate the importance of chicken sheds for the presence of L. longipalpis in the peridomestic environment. The great numbers of L. longipalpis inside the houses confirm the endophilic behaviour of this species and the possibility of visceral transmission in the intradomicile.
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Guimarães VCFV, Costa PL, Silva FJD, Silva KTD, Silva KGD, Araújo AIFD, Rodrigues EHG, Brandão Filho SP. Phlebotomine sandflies (Diptera: Psychodidae) in São Vicente Férrer, a sympatric area to cutaneous and visceral leishmaniasis in the state of Pernambuco, Brazil. Rev Soc Bras Med Trop 2012; 45:66-70. [DOI: 10.1590/s0037-86822012000100013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Accepted: 09/30/2011] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION: In the last decades, a considerable geographic expansion of the leishmaniases in all regions of Brazil has been observed. The present study was carried out to identify the composition of the phlebotomine sandfly fauna and verify the seasonal variation of the main species after environmental changes occurred in São Vicente Férrer Municipality, State of Pernambuco, Brazil. METHODS: Captures were carried out during four consecutive nights of each month using Centers for Disease Control and Prevention light traps from September 2009 to September 2010. The correlation between the number of phlebotomine sandflies captured and climatic factors (temperature and rainfall) was evaluated. RESULTS: A total of 13,872 specimens belonging to 20 species were captured, of which, 6,247 (45%) were females, and 7,625 (55%) were males. Lutzomyia migonei was the most abundant species with 9,964 (71.8%) specimens, being predominant in the intradomicile and peridomicile areas with 108 (86.4%) and 9,746 (97%), respectively. In the forest remnants, Lutzomyia complexa 2,395 (65%) and Lutzomyia sordellii 770 (20.8%) predominated. The correlation analysis between the total number of sandflies captured and climatic factors did not show a significant influence on population density. CONCLUSIONS: The high abundance of Lutzomyia migonei and Lutzomyia complexa indicates the possibility of new cases of cutaneous leishmaniasis (CL).
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de Carvalho MR, Valença HF, da Silva FJ, de Pita-Pereira D, de Araújo Pereira T, Britto C, Brazil RP, Brandão Filho SP. Natural Leishmania infantum infection in Migonemyia migonei (França, 1920) (Diptera:Psychodidae:Phlebotominae) the putative vector of visceral leishmaniasis in Pernambuco State, Brazil. Acta Trop 2010; 116:108-10. [PMID: 20457120 DOI: 10.1016/j.actatropica.2010.03.009] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2010] [Revised: 03/13/2010] [Accepted: 03/23/2010] [Indexed: 11/30/2022]
Abstract
A study of the natural infection of phlebotomine sand flies by Leishmania (Leishmania) infantum was conducted in an area of visceral leishmaniasis in São Vicente Férrer, located in the northern part of the Atlantic rain forest region in the State of Pernambuco, Brazil. In a previous study, Migonemyia migonei have been found predominantly in peridomiciles and houses in this endemic area. The analysis of M. migonei, collected by CDC light trap, by multiplex PCR assay coupled to non-isotopic hybridization showed that 2 females out of 50 were infected by L. infantum. This is the first finding of natural infection of M. migonei by L. infantum suggesting that M. migonei may be the vector of L. infantum in areas of visceral leishmaniasis where Lutzomyia longipalpis, the usual vector, is absent.
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Rocha A, Barbosa CS, Brandão Filho SP, Oliveira CMFD, Almeida AMPD, Gomes YDM. [First internal workshop of the reference services at Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz]. Rev Soc Bras Med Trop 2009; 42:228-34. [PMID: 19448951 DOI: 10.1590/s0037-86822009000200030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Abraham Rocha
- Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, PE.
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Andrade MS, Valença HF, da Silva AL, Almeida FDA, Almeida EL, de Brito MEF, Brandão Filho SP. Sandfly fauna in a military training area endemic for American tegumentary leishmaniasis in the Atlantic Rain Forest region of Pernambuco, Brazil. CAD SAUDE PUBLICA 2006; 21:1761-7. [PMID: 16410860 DOI: 10.1590/s0102-311x2005000600023] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to characterize the sandfly fauna in a military training area situated in the "Zona da Mata" region of Pernambuco State, Brazil, where human cases of American tegumentary leishmaniasis (ATL) had been observed, caused by Leishmania (Viannia) braziliensis. The occurrence of 16 sandfly species in the Marshall Newton Cavalcanti Military Training Camp (CIMNC) indicates an important diversity of sandfly species in this study area. Lutzomyia complexa was the most common species (51.36%) followed by L. choti (43.54%). All the captures were made in areas where training activities were conducted and where clinical cases had been detected in individuals performing training, following this period. The data relating the sandfly behavior to previous data in the same area provides strong evidence for the occurrence of an enzootic cycle of the parasite, and outbreaks followed the period of training activities in the remaining Atlantic Rain Forest and secondary forest areas.
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