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Expans?o espacial da leishmaniose visceral americana em S?o Luis, Maranh?o, Brasil
Mendes, Wellington da Silva;Silva, Antonio Augusto Moura da;Trov?o, José de Ribamar;Silva, Ant?nio Rafael da;Costa, Jackson Maurício Lopes;
Revista da Sociedade Brasileira de Medicina Tropical , 2002, DOI: 10.1590/S0037-86822002000300005
Abstract: the space occupation and the expansion of american visceral leishmaniasis (avl) were described in the municipality of s?o luis, maranh?o, northeast brazil. avl medical notes from the funda??o nacional de saúde as well as official documents about the space occupation were analyzed from september 1982 to december 1996. avl cases were more likely to occur in recently settled suburbs and tended to follow the same spatial pattern observed for land occupations secondary to migratory fluxes.
Expans o espacial da leishmaniose visceral americana em S o Luis, Maranh o, Brasil
Mendes Wellington da Silva,Silva Antonio Augusto Moura da,Trov?o José de Ribamar,Silva Ant?nio Rafael da
Revista da Sociedade Brasileira de Medicina Tropical , 2002,
Abstract: Descreve-se a ocupa o espacial no município de S o Luis e a expans o da leishmaniose visceral americana(LVA) na mesma. Foram analisadas as fichas de registro de atendimento de casos de leishmaniose visceral da Diretoria Regional da Funda o Nacional de Saúde do Maranh o no período de setembro de 1982 a dezembro de 1996, assim como documentos oficiais sobre a ocupa o espacial do município. Foi observado que os casos de LVA ao longo da evolu o da epidemia em S o Luis apresentaram distribui o espacial e concentra o semelhantes a apresentada pelo fluxo migratório na cidade no mesmo período.
LEISHMANIOSE VISCERAL CANINA (LVC): SOROPREVALêNCIA, ASPECTOS CLíNICOS, HEMATOLóGICOS E BIOQUíMICOS DE C ES NATURALMENTE INFECTADOS EM UMA áREA ENDêMICA NO MUNICíPIO DE S O LUIS, ESTADO DO MARANH O, BRASIL CANINE VISCERAL LEISHMANIASIS (CVL): SEROPREVALENCE, CLINICAL, HEMATOLOGICAL AND BIOCHEMICAL FINDINGS OF DOGS NATURALLY INFECTED IN AN ENDEMIC AREA OF S O JOSé DE RIBAMAR MUNICIPALITY, MARANH O STATE, BRAZIL  [cached]
Elaine Le?o Dias,Zulmira da Silva Batista,Rita de Maria Seabra Nogueira de Candanedo Guerra,Katia da Silva Calabrese
Ciência Animal Brasileira , 2008,
Abstract: Objetivou-se verificar a soroprevalência e os parametros clínicos, hematológicos e bioquímicos de c es naturalmente infectados por Leishmania em uma área endêmica. Realizou-se a sorologia pela rea o de imunofluorescência indireta (RIFI) em 76 c es sem ra a definida. Os resultados demonstraram que 28 (36,84%) foram positivos, enquanto 15 (53,57%) eram assintomáticos e 13 (46,43%) sintomáticos. Os sinais clínicos mais freqüentes foram onicogrifose, les es de pele (alopecia, úlceras, descama o furfurácea) e linfoadenopatia localizada. Em 6 de 22 animais (27,27%) observou-se anemia. As análises bioquímicas indicaram que a infec o causada por Leishmania pode levar a altera es hepáticas. N o se observaram altera es renais. Conclui-se que os parametros bioquímicos podem ser úteis para acompanhar os estágios clínicos da doen a. PALAVAS-CHAVES: Análises bioquímicas, hematologia, Leishmaniose visceral canina. This study aims at verifying the seroprevalence of dogs naturally infected with Leishmania in an endemic area together with clinical, hematological and biochemical parameters. A seroprevalence survey was conducted in 76 household mongrel dogs by an Indirect Antibody Test (IFAT). The results showed that 28 (36.84%) were positive; 15 (53.57%) were asymptomatic and 13 (46.43%) were symptomatic. The most frequent clinical signs were onychogryphosis, skin lesions (alopecia, ulcers, dry desquamation) and localized lymphadenopathy. In 6 out 22 dogs (27.27%) anemia was observed. The biochemical analyses indicated that infection caused by Leishmania can lead to hepatic changes. Kidney changes were not observed. In conclusion, the hematological and biochemical parameters would probably help to follow up the clinical stage of the disease. KEY WORDS: Biochemical analyses, canine visceral Leishmaniasis, hematology.
Leishmania infection in humans, dogs and sandflies in a visceral leishmaniasis endemic area in Maranh?o, Brazil
Felipe, Ilana Mirian Almeida;Aquino, Dorlene Maria Cardoso de;Kuppinger, Oliver;Santos, Max Diego Cruz;Rangel, Maurício Eduardo Salgado;Barbosa, David Soeiro;Barral, Aldina;Werneck, Guilherme Loureiro;Caldas, Arlene de Jesus Mendes;
Memórias do Instituto Oswaldo Cruz , 2011, DOI: 10.1590/S0074-02762011000200015
Abstract: leishmania infection in humans, dogs and sandflies was examined in the endemic visceral leishmaniasis (vl) municipality of raposa, state of maranh?o, brazil. in this study, we examined leishmania chagasi infection in the blood serum of both humans and canis familiaris and the natural leishmania sp. infection rate in the sandfly vector, lutzomyia longipalpis. enzyme-linked immunosorbent assay, indirect immunofluorescence reaction and polymerase chain reaction were performed to detect leishmania infections in humans, dogs and sandflies, respectively. overall, 186 out of 986 studied human beings were infected with l. chagasi parasites, representing an infection prevalence of 18.9%. an even higher infection rate was detected in dogs, where 66 (47.8%) out of 138 were infected. among all lu. longipalpis captured (n = 1,881), only 26.7% were females. the leishmania infection frequency for the vector lu. longipalpis was 1.56%. remarkably, all infected sandflies were found in the peridomiciliary area. furthermore, a high incidence of asymptomatic forms of vl in the human and canine populations was observed. the results of this study suggest autochthonous transmission of l. chagasi in this endemic area for visceral leishmaniasis because infection by leishmania sp. was identified in all important elements of the transmission chain.
Leishmania infections in Lutzomyia longipalpis (Diptera: Psychodidae) on the Island of Sao Luis, Maranhao State, Brazil
Ryan, L.;Brazil, Reginaldo Pe?anha;
Memórias do Instituto Oswaldo Cruz , 1984, DOI: 10.1590/S0074-02761984000300016
Abstract: dissection of lutzomyia longipalpis, captured in the s?o luis focus of visceral leishmaniasis revealed a 1.8% promastigote infection rate.
Leishmaniose visceral no estado do Maranh?o, Brasil: a evolu??o de uma epidemia
Costa, Jackson M. L.;Viana, Gra?a Maria C.;Saldanha, Ana Cristina R.;Nascimento, Maria D. S. B.;Alvim, Aymoré C.;Burattini, Marcelo N.;Silva, Antonio R. da;
Cadernos de Saúde Pública , 1995, DOI: 10.1590/S0102-311X1995000200016
Abstract: the authors provide a brief report on the historical evolution of visceral leishmaniasis in the state of maranh?o, brazil, evaluating possible factors for growth of the disease in the state and control measures by the brazilian ministry of health to integrate health services finto the maintenance of control programs.
Animal reservoirs for visceral leishmaniasis in densely populated urban areas
Soraia A. Diniz,1 Fabiana L. Silva,2 Alcina V. Carvalho Neta,2 Regina Bueno,3 Rita M.S.N.C. Guerra,4 Ana L. Abreu-Silva,4 Renato L. Santos.2
Journal of Infection in Developing Countries , 2008,
Abstract: Leishmaniasis is a zoonotic disease of major public health and veterinary importance, affecting 88 countries with up to 2 million cases per year. This review emphasizes the animal reservoirs and spreading of visceral leishmaniasis (VL) in urban areas, particularly in two Brazilian metropolitan areas, namely S o Luis and Belo Horizonte, where the disease has become endemic in the past few years. Urbanization of visceral leishmaniasis in Brazil during the last decades has created favorable epidemiological conditions for maintenance of the disease, with dense human populations sharing a tropical environment with abundant populations of the mammalian reservoir and the invertebrate vector, facilitating transmission of the disease.
Subclinical form of the American visceral leishmaniasis
Gama, M?nica Elinor Alves;Costa, Jackson Maurício Lopes;Gomes, Cláudia Maria Castro;Corbett, Carlos Eduardo Pereira;
Memórias do Instituto Oswaldo Cruz , 2004, DOI: 10.1590/S0074-02762004000800018
Abstract: the subclinical form of visceral leishmaniasis (vl) shows nonspecific clinical manifestations, with difficulties being frequently met in its clinical characterization and diagnostic confirmation. thus, the objective of the present study was to define the clinical-laboratory profile of this clinical form. a cohort study was conducted in the state of maranh?o, brazil, from january/1998 to december/2000, with monthly follow-up of 784 children aged 0-5 years. based on the clinical-laboratory parameters reported in the literature, four categories were established, with the children being classified (according to their clinical-evolutive behavior) as asymptomatic (n = 144), as having the subclinical form (n = 33) or the acute form (n = 12) or as subjects "without vl" (n = 595). multiple discriminant analysis demonstrated that the combination of fever, hepatomegaly, hyperglobulinemia, and increased blood sedimentation rate (bsr) can predict the subclinical form of vl as long as it is not associated with splenomegaly or leukopenia. subjects with the subclinical form did not show prolonged or intermittent evolution or progression to the acute form of vl. subclinical cases have a profile differing from the remaining clinical forms of vl, being best characterized by the combination of fever, hepatomegaly, hyperglobulinemia, and increased bsr.
Estudo comparativo de anticorpos IgG e IgE antileishmania como marcadores de infec??o e doen?a em indivíduos de área endêmica de leishmaniose visceral, em S?o Luis, MA
Nascimento, Maria do Desterro Soares Brand?o;Bezerra, Geusa Felipa de Barros;Bandeira Neto, Abderval Pinto;Silva, Leopoldo Muniz da;Bezerra, José de Macêdo;Viana, Gra?a Maria de Castro;
Revista da Sociedade Brasileira de Medicina Tropical , 2006, DOI: 10.1590/S0037-86822006000100007
Abstract: comparative study regarding igg and ige anti-leishmania as markers of infection and illness among residents of a visceral leishmaniasis visceral leishmaniasis endemic area, s?o luis, ma in the period from may 1999 to may 2000. all the 1,016 individuals younger than 16 years old were tested for the presence of igg by elisa. a total of 174 (17,1%) children revealed a positive igg test and 4 children showed symptoms of classical visceral leishmaniasis during the time of the survey: 85 ige anti-leishmania elisa tests with positivity of 43,5% were realized. in this sample, all 7 children with past-visceral leishmaniasis in the sample were igg positive and 4 (57,1%) were ige positive, even after a 7 year post treatment period. three children with current visceral leishmaniasis were evaluated, and all of them were positive for both tests. the detection of antileishman ige antibodies presented as a good marker for infection by leishmania chagasi in endemic areas but not as a disease marker.
Leishmaniose visceral (calazar) na Ilha de S?o Luís, Maranh?o, Brasil: evolu??o e perspectivas
Silva, Antonio Rafael da;Viana, Gra?a Maria Castro;Varonil, Carlos;Pires, Benedito;Nascimento, Maria do Desterro S.D.;Costa, Jackson M.L.;
Revista da Sociedade Brasileira de Medicina Tropical , 1997, DOI: 10.1590/S0037-86821997000500002
Abstract: visceral leishmaniasis (kala-azar) was definitively an important disease of the state of maranh?o-brasil since 1982. since of then, many authors have been working with this topic in spite of reports. nevertheless, the aspects of diagnosis, treatment an control of cure went through still hard worried the authors have been studing the disease, that came at s?o luís island since of the desestabilization of the ecotops of lutzomya longipalpis, most important sandflies bites. after 1993 the constatation of cases with bad response to pentavalent antimonial (glucantime?) comes to add the other worries. this actual trial accost the disease and conclude about an existence of failures to glucantime? being important to have much vigilance in the diagnosis, treatment and control of cure of the patients.
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