Presence of antibodies against Leptospira spp. in dogs of Uberlandia, MG, Brazil

Castro, Jairo Lopes de; Souza, Mariana Assunção de; Neto, Antônio Bertolino Cardoso; Moreira, Rafael Quirino; Salaberry, Sandra Renata Sampaio; Guimarães, Ednaldo Carvalho; Lima, Anna Monteiro Correia

doi:10.14393/bj-v31n4a2015-26173

Cited by 5 publications

(3 citation statements)

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“…The prevalence rate found in this study (13.2%) was similar to the 13.1% found by Magalhães et al (2007) in the city of Belo Horizonte, MG and lower than the 28.3% reported by Castro et al (2015) (FERNANDES et al, 2013).…”

Section: Contentssupporting

confidence: 73%

High level of serovar copenhageni detection in dog sera from Patrocínio, MG, Brazil

et al. 2020

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T This study aimed to evaluate the occurrence of canine leptospirosis and the possible risk factors associated with the disease in the municipality of Patrocínio, MG, Brazil. A cross-sectional observational study was carried out from July through August 2017. The municipality was divided into four regions (north, south, east and west) and a predefined number of neighborhoods (25) were randomly sampled in each region. Samples of blood serum were collected from 241 domiciled male and female dogs of different breeds and ages. To investigate the risk factors for canine leptospirosis, the owners of the animals were asked to fill out an epidemiological questionnaire. The following factors were evaluated: breed, sex, age, presence of rodents, type of diet, access to the street, vaccination, presence of flooded areas, and educational level of the owners. Blood serum samples were evaluated by the Microscopic Agglutination Test (MAT), using a collection of 24 live antigens. Of the 241 dogs evaluated, 32 (13.2%) were reactive. The most frequent serovars were: Copenhageni (37.5%) and Canicola (21.8%), followed by Icterohaemorrhagiae and Grippotyphosa (12.5%), Pomona, Tarassovi and Butembo (9.3%) and Hardjo (6.2%). The presence of canine leptospirosis was associated with purebred dogs (OR=0.3059 [95% CI: 0.1430 – 0.6547]) and vaccination (OR=2.581 [95% CI: 1.198 – 5.563]). It was concluded that some dogs in the municipality of Patrocínio, MG have anti-Leptospira spp. antibodies and that the serovars most frequently identified were Copenhageni (37.5%) and Canicola (21.8%). Pure breeds and vaccination were factors associated with the prevalence of infection.

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Section: Contentssupporting

confidence: 73%

High level of serovar copenhageni detection in dog sera from Patrocínio, MG, Brazil

et al. 2020

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“…The predominance of the serogroup Icterohaemorrhagiae is not a common finding when compared to studies carried out in recent years in other regions of Brazil. In the Southern region, the most common serogroups were Canicola and Autumnalis (Morikawa et al 2015, Oliveira et al 2016, Hafemann et al 2018, Pinto-Ferreira et al 2019, in Minas Gerais the serogroups Autumnalis, Tarassovi, Canicola and Grippotyphosa (Castro et al 2015), in Pará, Canicola, Semaranga and Icterohaemorrhagiae (Paz et al 2015), and in Piauí, the serogroups Canicola, Autumnalis and Australis were the most frequent (Silva et al 2017a).…”

Section: Discussionmentioning

confidence: 97%

Cross-sectional survey for canine leptospirosis in an Atlantic Rainforest area of the semiarid of Paraíba state, Northeastern Brazil

et al. 2021

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Leptospirosis is a worldwide zoonosis caused by the bacteria Leptospira spp. that affects humans, domestic and wild animals. The present work aimed to conduct a cross-sectional survey for leptospirosis in the canine population of the Brejo Paraibano microregion, semiarid of Northeastern Brazil. From May to October 2017, blood samples from 414 dogs were collected in the counties of Alagoa Grande (n=100), Areia (n=79), Bananeiras (n=72), Alagoa Nova (n=73), Serrraria (n=25), Pilões (n=25), Borborema (n=20) and Matinhas (n=20). The tutors of the sampled dogs answered an epidemiological questionnaire, obtaining information about the animals, owner, residence and breeding of the dogs. Subsequently, the serum samples were subjected to the microscopic agglutination test (MAT), using a collection of 23 serovar pathogenic antigens and using the 1:50 dilution as the cutoff point. Of the 414 dogs analyzed 52 were seroreactive, resulting in an apparent prevalence of 12.6% and a real prevalence of 12.2%. Seroreactive dogs were found in the eight counties. Dogs were reactive for the serogroups Icterohaemorrhagiae (76.9%), Autumnalis (13.55%), Pomona (3.8%), Grippotyphosa (3.8%) and Serjoe (1.9%) Antibody titers ranged from 50 to 800. The statistical analysis (robust Poisson regression) detected six factors associated with seropositivity, including the rainy season (prevalence ratio; PR=1.94, P=0.013), male dogs (PR=2.10, P=0.005), animals with age greater than five years (PR=4.21, P=0.012), consumption of untreated water (PR=1.87, P=0.043), free access of dogs to street (PR=2.15, P=0.011) and contact with wildlife (PR=3.54, P=0.050). The serogroup Icterohaemorrhagiae has a high zoonotic potential and was the most frequent in seropositive animals. The high real prevalence of Leptospira spp. in a transmission region of the semiarid region of Paraíba and the occurrence of seroreactive animals in all the counties suggest wide distribution of the infection and reinforce the need for preventive measures to avoid infection in pets and, consequently, to humans. The analysis of factors associated with the prevalence suggest greater manegment cares with the dogs.

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“…Canine leptospirosis has been studied to some extent in Brazil (Castro et al, 2015, Sales et al, 2020, however these studies have been few and far apart. In 2002, the isolation of a Leptospira interrogans strain of the Canicola serovar, revealed that, of 105 canine tested the same year, 55 (52.4%) were reactive in the MAT (Brod et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Canine leptospirosis: an Overview of the City of Pelotas, Brazil

Félix¹,

Felix

Colonetti

et al. 2020

RSD

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Leptospirosis is a disease of worldwide importance, both from a veterinarian and a public health point of view. Serological survey through the microscopic agglutination test (MAT) is the standard to diagnose and assess the disease´s distribution in a population. Stray dogs are important urban reservoirs of leptospirosis and studies regarding their seroreactivity in Brazil are few and far apart. This work reports the seroreactivity of stray dogs to the most important serogroups in the Leptospira genus causing urban leptospirosis in dogs and humans in Pelotas, Brazil: Icterohaemorrhagiae and Canicola. All the animals used in this study were female stray dogs, no distinction regarding age or race was made. Blood samples were collected from 221 animals. The MAT was carried out according to the recommendations of the World Health Organization (WHO). Of the 221 tested animals, 64 were positive for agglutinating antibodies, representing a prevalence of 29%. These results are in accordance with those reported for housed dogs in Pelotas in previous studies. This study represents an important epidemiological update for the leptospirosis scenario in southern Brazil. Furthermore, these reports will aid healthcare agents in controlling both canine and human leptospirosis in the region.

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Presence of antibodies against Leptospira spp. in dogs of Uberlandia, MG, Brazil

Cited by 5 publications

References 10 publications

High level of serovar copenhageni detection in dog sera from Patrocínio, MG, Brazil

High level of serovar copenhageni detection in dog sera from Patrocínio, MG, Brazil

Cross-sectional survey for canine leptospirosis in an Atlantic Rainforest area of the semiarid of Paraíba state, Northeastern Brazil

Canine leptospirosis: an Overview of the City of Pelotas, Brazil

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