Sorovares de Leptospira spp. predominantes em exames sorológicos de caninos e humanos no município de Uberlândia, Estado de Minas Gerais

Castro, Jairo Lopes de; Salaberry, Sandra Renata Sampaio; Souza, Mariana Assunção de; Lima, Anna Monteiro Correia

doi:10.1590/s0037-86822011005000012

Cited by 34 publications

(25 citation statements)

References 15 publications

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“…In the urban environment, the main Leptospira reservoir hosts are dogs and rodents (mainly Rattus norvegicus and Rattus rattus species), which are regarded as important modes of leptospirosis transmission to humans (2) (3) .…”

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confidence: 99%

Seroprevalence of and risk factors for leptospirosis in the City of Manaus, State of Amazonas, Brazil

Silva¹,

Lima²,

Fernandes³

et al. 2016

Rev. Soc. Bras. Med. Trop.

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Introduction:Leptospirosis is caused by a bacterium of the genus Leptospira. This study aimed at investigating the seroprevalence of and risk factors for leptospirosis in humans in Manaus, State of Amazonas. Methods: Interviews were performed, and 1,000 blood serum samples were examined using a microscopic agglutination test. Results: Forty-three cases were positive; there were 10 serotypes, with coagglutination in 8 cases. The most frequently occurring serotypes were Icterohaemorrhagiae (20.7%), Cynopteri (20.7%), Australis (18.8%), and Copenhageni (16.9%), and the Midwest (54.7%) and South (23.8%) had the most cases; these areas lack basic sanitation. Conclusions: Disease occurrence might be reduced through improved basic infrastructural conditions.

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confidence: 99%

Seroprevalence of and risk factors for leptospirosis in the City of Manaus, State of Amazonas, Brazil

Silva¹,

Lima²,

Fernandes³

et al. 2016

Rev. Soc. Bras. Med. Trop.

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“…In particular, the seroprevalence values have been reported to range from 10.5% to 34.8% in the southern region of Brazil, between 6.6% and 17.9% in the southeast, between 10% and 30.9% in the midwest, at 27.3% in the north and between 20% and 85% in the northeast. The most prevalent serovars have been Canicola, Copenhageni and Pyrogenes [4][5][6][7][8] . Serology for leptospirosis lasts three months for any serovar.…”

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confidence: 99%

Incidence of canine leptospirosis in the metropolitan area of Curitiba, State of Parana, Southern Brazil

Martins

Barros

Galindo

et al. 2013

Rev. Soc. Bras. Med. Trop.

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Revista da Sociedade Brasileira de Medicina Tropical 46(6):772-775, Nov-Dec, 2013http://dx.doi. org/10.1590/0037-8682-1665-2013 Short Communication ABSTRACT Introduction:The incidence of canine leptospirosis in Brazil needs to be assessed. Methods: The same dogs in southern Brazil were sampled over two years to determine the prevalence, incidence and association of canine leptospirosis with various risk factors. Results: In 2009, the prevalence was 33 (14.4%) of 228 dogs, with a predominance of serovar Canicola (33.4%). In 2010, 90 dogs were re-evaluated (the remaining dogs were lost to deaths, address changes and donations), and the prevalence was found to be 35 (38.9%) of 90, with the predominant serovar being Icterohaemorrhagiae (51.4%). Moreover, the incidence was 26 of 90 (28.9%), and the disease was statistically associated with age (2009) and street access (2010). Conclusions: Our fi ndings revealed instability in the dog population and age to be relevant risk factors for canine leptospirosis.

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“…Higher results were obtained by Paz et al (2015) in Pará, PA; Castro et al (2011) in the municipality of Uberlândia, MG; Azevedo et al (2011) in Patos, PB; Lemos et al (2010) in the municipality of Aracajú, SE; Aguiar et al (2007) in the municipality of Monte Negro, RO;and Batista et al (2005) in the city of Campina Grande, PB; who observed, respectively, 17%, 28.4%, 19.74%, 37%, 27.3%, and 21.4% seropositivity. These differences in positivity can be explained by the variety of factors that influence the occurrence of leptospirosis, particularly with regard…”

Section: Discussionmentioning

confidence: 70%

“…In certain regions, different serotypes of Leptospira are prevalent and are associated with one or more maintenance hosts that act as reservoirs of the agent; reservoirs are usually wild species but may occasionally include companion and production animals (BOLIN, 1996). Dogs can be infected by a wide variety of serotypes; Autumnalis, and Grippotyphosa (AZEVEDO et al, 2011;CASTRO et al, 2011;FERNANDES et al, 2013;LAVINSKY et al, 2012;MASCOLLI et al, 2016;PAZ et al, 2015). Dogs are infected by direct contact with urine and tissues from infected animals, or indirectly by contact with water contaminated with the urine of infected animals (ADLER et al, 2011), and may be used as sentinel of the presence of Leptospira in the environment (GHNEIM et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Epidemiological characterization and risk factors associated with Leptospira infection in dogs from rural settlements in the semi-arid region of Northeast Brazil

Silva

Melo

Correia

et al. 2017

SCA

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Rural settlements are defined as family-run agrarian spaces. Their purpose, based on public policies, is to strengthen family agriculture. They are peculiar environments that can predispose to the risk of diseases, especially zoonotic diseases, due to close natural contact with animals that can be sources of infection. The aim of this study was to determine the frequency of anti-Leptospira antibodies in dogs from rural settlements in the state of Paraíba, Northeast Brazil, and to identify the risk factors associated with infection. A total of 306 dogs were sampled and Leptospira screening was performed using the microscopic agglutination test. In all, 27 of 306 (8.82%; 95% CI = 6.13-12.5%) dogs were seropositive for Leptospira spp. The most frequent serotype was Pomona. Street access (odds ratio = 3.53, p = 0.012) was indicated as a risk factor for infection. The results indicate that leptospirosis is present in dogs from rural settlements in the state of Paraíba, Northeast Brazil. This reinforces the need to limit contact between dogs and wild reservoirs and perform serological monitoring of swine. It also reinforces the need for implementation of control measures such as improvements in hygienic-sanitary conditions in the settlements, including the construction of pigsties away from homes, and the introduction of vaccination to reduce the occurrence of this disease, which will prevent transmission to humans and animals. Key words: Zoonoses. Rural área. Risk factors. Serology. ResumoOs assentamentos rurais são definidos como espaços agrários de organização familiar, cuja finalidade é o fortalecimento da agricultura familiar a partir de políticas públicas. São ambientes peculiares que podem predispor ao risco de doenças, especialmente de caráter zoonótico, considerando naturalmente o convívio estreito com os animais, que de certo modo, podem atuar como fontes de infecção. O objetivo deste estudo foi determinar a frequência de anticorpos anti-Leptospira spp. em cães de assentamentos rurais do Estado da Paraíba, Nordeste do Brasil, bem como identificar os fatores de risco associados com a infecção. Foram utilizados 306 cães e o diagnóstico de Leptospira spp. realizados pela técnica de Soroaglutinação Microscópica (MAT). Foram identificados 27/306 (8,82%; IC 95% = 6,13 -12,5%) cães soropositivos para Leptospira spp. O sorotipo mais frequente foi o Pomona. A criação do tipo solto (Odds ratio = 3,53; p = 0,012) foi apontada como fator de risco para a infecção. Os resultados do presente estudo indicam que a leptospirose está presente em cães de áreas de assentamentos rurais do estado da Paraíba, Nordeste do Brasil. Isso reforça a necessidade de limitar o contato de cães com reservatórios silvestres, bem como fazer o monitoramento sorológico dos suínos e implantação de medidas de controle como melhorias nas condições higiênico-sanitárias nos assentamentos, destacandose a construção de pocilgas afastadas das residências e a introdução de vacinação com o intuito de reduzir a ocorrência dessa doença e, consequent...

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Sorovares de Leptospira spp. predominantes em exames sorológicos de caninos e humanos no município de Uberlândia, Estado de Minas Gerais

Cited by 34 publications

References 15 publications

Seroprevalence of and risk factors for leptospirosis in the City of Manaus, State of Amazonas, Brazil

Seroprevalence of and risk factors for leptospirosis in the City of Manaus, State of Amazonas, Brazil

Incidence of canine leptospirosis in the metropolitan area of Curitiba, State of Parana, Southern Brazil

Epidemiological characterization and risk factors associated with Leptospira infection in dogs from rural settlements in the semi-arid region of Northeast Brazil

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