Aspectos epidemiológicos do dengue no Município de São Luís, Maranhão, Brasil, 1997-2002

Neto, Vicente Silva Gonçalves; Rebêlo, José Manuel Macário

doi:10.1590/s0102-311x2004000500039

Cited by 38 publications

(12 citation statements)

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“…In Maranhão, DENV-2 was reported for the first time in 2001, in the capital of São Luís, and the first cases of hemorrhagic fever and deaths occurred in the following year [98]. Studies have associated the occurrence of more severe forms of the disease to infections by DENV-2 [99,100].…”

Section: Discussionmentioning

confidence: 99%

Natural Infection of Aedes aegypti by Chikungunya and Dengue type 2 Virus in a Transition Area of North-Northeast Brazil

Aragão

Pinheiro

Neto

et al. 2019

Viruses

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Dengue fever, chikungunya, and Zika are diseases caused by viruses transmitted by Aedes aegypti and Aedes albopictus. In Brazil, the number of human infections is high, but few studies are performed in mosquito vectors. This study aimed to investigate the presence of Zika, Dengue and Chikungunya viruses in Ae. aegypti and Ae. albopictus from the municipalities of Alto Alegre, Caxias, Codó, and São Mateus do Maranhão, located in the state of Maranhão, Northeast Brazil. The mosquitoes were collected with a mechanical aspirator, identified, triturated, and then submitted to RNA extraction and RT-qPCR. The positive samples were confirmed by virus isolation and genome sequencing. Three hundred and forty-eight Ae. aegypti (176 males and 172 females) and 12 Ae. albopictus (eight males and four females) were collected and tested. Ae. aegypti was the only vector positive in two municipalities—Codó, with detection of Chikungunya virus (CHIKV) belonging to the East-Central-South African genotype, and in Caxias, with detection of Dengue virus (DENV)-2 belonging to the Asian/American genotype. The detection of CHIKV and DENV-2 is evidence that those viruses are maintained in arthropod vectors, and shows the epidemiological risk in the area for chikungunya cases and a possible increase of severe dengue cases, associated with the occurrence of dengue hemorrhagic fever.

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Section: Discussionmentioning

confidence: 99%

Natural Infection of Aedes aegypti by Chikungunya and Dengue type 2 Virus in a Transition Area of North-Northeast Brazil

Aragão

Pinheiro

Neto

et al. 2019

Viruses

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“…Gonçalves Neto & Rebelo 17 , em estudo epidemiológico da dengue na cidade de São Luis (MA) no período de 1997 a 2002, observaram que a faixa etária mais acometida foi de 15 a 49 anos, o que representou 72,2% dos casos (p < 0,05), resultado este que difere do presente estudo, pois mais de 37,4% dos casos estão distribuídos em menores de 15 anos. Já Barbosa et al 16 , em estudo sobre série temporal no Estado do Rio Grande do Norte (2001 a 2009), observaram que a faixa etária mais acometida foi a de adultos jovens (15-34 anos).…”

Section: Discussionunclassified

Dengue: descrevendo a epidemia em Aracaju, Sergipe, Brasil, 2008

Cunha

Bohland

2012

Rev Bras Med Fam Comunidade

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ResumoIntrodução: a dengue é um dos maiores problemas de saúde pública no Brasil, caracterizando-se como doença febril aguda, com espectro clínico variando desde quadros febris inespecíficos até manifestações graves com hemorragia e choque. A Vigilância Epidemiológica (VE) da dengue deve ter agilidade suficiente para detectar precocemente as epidemias, e juntamente com a organização da rede de assistência, minimizar os casos de evolução grave, reduzindo a letalidade. Objetivos: estudar o perfil epidemiológico da dengue na cidade de Aracaju no ano de 2008. Métodos: foi realizado um estudo transversal, sendo utilizadas as seguintes variáveis: sexo, idade do paciente, cor da pele, semana epidemiológica de notificação, região de saúde, classificação da forma clínica da doença, resultado do exame (Mac-Elisa) e óbito. As informações foram colhidas do banco de dados do Sistema de Informações de Agravos de Notificação da Secretaria de Estado da Saúde de Sergipe. Os dados foram formatados utilizando o programa Microsoft Office Excel ® e transferidos para o Stats Direct (versão 2.7.9), onde foi realizada a análise. Resultados: foram notificados 11348 casos e 10165 casos confirmados de dengue, com taxa de incidência de 1,89 casos/1000 habitantes em 2008. A maior incidência (por mil habitantes) foi sexo feminino (20,5), entre os 5 e 15 anos (26,1) e cor de pele parda (28,1). No que se refere à semana epidemiológica, o período compreendido entre a 9 a e a 24 a semanas apresentou o maior número de casos. A região de saúde com maior coeficiente foi a quarta (22,3). Quanto à realização do exame, 43,1% dos casos graves foram confirmados sem a sua realização. Dos casos confirmados, 96,1% foram classificados como dengue clássica, 2,6% como dengue com complicações, 1,2% como febre hemorrágica da dengue e apenas 2 casos (0,02%) como síndrome do choque da dengue. O diagnóstico final de dengue comparado à sorologia apresentou uma sensibilidade de 99,4% e uma especificidade de 97,0%. A taxa de letalidade nos casos graves foi de 4,6%. Conclusão: o melhor entendimento epidemiológico da doença permitirá o aprimoramento da vigilância, detectando mais precocemente e evitando novas epidemias da doença. AbstractIntroduction: Dengue is a major public health problem in Brazil, characterized as acute febrile illness with clinical spectrum ranging from unspecific febrile to severe manifestations such as bleeding and shock. The dengue epidemiological surveillance (ES) must be agile enough to detect early outbreaks and cases of severe outcome, reducing lethality. Objectives: To study the epidemiology of dengue in the city of Aracaju in 2008. Methods: We performed a cross-sectional study, which used the following variables: sex, patient age, race, epidemiological week of notification, health district, classification of the clinical form of the disease, serological test results (Mac-Elisa) and death. The information was collected from the database of the Information System for Notifiable Diseases of the Secretary of Health of Sergipe. The data were f...

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“…According to Nobre et al 11 (1994), dengue fever has important socioeconomic implications, as it affects major urban centers, causes work absenteeism, reduces tourist flow, increases health service demand and requires great amounts of financial resources to be spent. Gonçalves Neto & Rebelo 6 (2004) and Vasconcelos et al 22 (1993), who used the city as the spatial unit of analysis, indicated greater risk of being infected by dengue in individuals from the economically active range. Studies that used districts 3,17,21 and census tracts 7 as spatial units of analysis indicated the same risk, revealing the disease's major negative effect on the economy of the affected area.…”

Section: Discussionmentioning

confidence: 99%

Heterogeneidade espacial da dengue em estudos locais, Niterói, RJ

Flauzino

Souza-Santos

Barcelllos³

et al. 2009

Rev. Saúde Pública

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OBJECTIVE:To analyze the spatial and temporal occurrence of dengue fever and its association with the heterogeneity of urban environment characteristics. METHODS:A total of 1,212 dengue cases, recorded in the Information System for Notifiable Diseases (Sinan) between 1998 and 2006, in the city of Niterói, Southeastern Brazil, were georeferenced according to census tracts. These tracts were classified into homogeneous areas for the occurrence of the disease: slum, shipyard and urban area. Cases were grouped into five periods -two inter-epidemic periods (1998-2000 and 2003-2005) and three epidemic periods (2001, 2002 and 2006) -and analyzed using operations between layers in a geographic information system (GIS) environment. The kernel method was used to identify clusters of cases. Kulldorff's spatial scan statistic was used to confirm these clusters statistically. RESULTS:Of all cases, 57% were females. Age groups with the highest number of cases were 20-29-years (20.5%) and 30-39-years (17.7%). The hill slum sector showed only 11% of households covered by garbage collection service, the highest percentage of illiterate individuals (8.7%) and head of families with income lower than one monthly minimum wage (29.5%). Cases remained in the slum sectors. In the first epidemic year and in the inter-epidemic periods, the highest number of cases was found in the hill and flatland slum sectors; in the second and third epidemic years, in the flatland slum sector. CONCLUSIONS:The economically active portion of the population was that most affected in the study area. Census tracts show spatial heterogeneity in relation to life conditions. In addition, in some tracts, there are differences in spatial and temporal distribution of the risk of occurrence of dengue fever.

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Aspectos epidemiológicos do dengue no Município de São Luís, Maranhão, Brasil, 1997-2002

Abstract: A total of 12,008 cases of dengue were reported from 1997 to 2002, with peaks in 1997 (35.8%) and 1998 (45.8%)

Cited by 38 publications

References 19 publications

Natural Infection of Aedes aegypti by Chikungunya and Dengue type 2 Virus in a Transition Area of North-Northeast Brazil

Natural Infection of Aedes aegypti by Chikungunya and Dengue type 2 Virus in a Transition Area of North-Northeast Brazil

Dengue: descrevendo a epidemia em Aracaju, Sergipe, Brasil, 2008

Heterogeneidade espacial da dengue em estudos locais, Niterói, RJ

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