Morcego hematófago comum Desmodus rotundus no Vale do Paraíba, Estado de São Paulo: abrigos diurnos, agrupamentos, lesões corporais e sorologia antirrábica

Ferrari, João José de Freitas

doi:10.11606/t.6.2015.tde-03082015-113130

Cited by 4 publications

(10 citation statements)

References 20 publications

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“…Indirect selective control is based on the habit of D. rotundus returning the same wound made in the prey to feed for consecutive days. The farmer applies the vampiric paste around the wound of the attacked animal, and when the bat returns to feed on the same wound, licking it takes in the vampiric paste, causing its death (7,8).…”

Section: Introductionmentioning

confidence: 99%

“…Young males, at the age of one, are expelled from the original group, while females are recruited as future mates. Young expelled from the colony can stay in the same shelter, in nearby shelters, or even move to other areas, joining other males forming single male clusters (8).…”

Section: Introductionmentioning

confidence: 99%

“…The increase in the food supply, represented by the significant growth of herds; disordered occupation, characterized by environmental macro modifications, such as deforestation, road construction, and hydroelectric dams, which altered the environment in which bats live, forcing them to look for new areas and other sources of food. The increase in the supply of artificial shelters represented by buildings, such as tunnels, cisterns, abandoned or inhabited houses, manholes, deactivated coal furnaces, among others, have contributed to the spread of rabies (8,9). Spatial analysis is a widely used tool in ecological studies, which allows mapping and demonstrating locations of risk for disease development and evidence of its association with various factors, represented living organisms and physical environment (10,11).…”

Section: Introductionmentioning

confidence: 99%

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Vampire Bat Desmodus Rotundus Shelters in the Central Region of São Paulo State, Brazil

Mialhe¹,

Moschini

Trevisan

2021

RVZ

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The vampire bat Desmodus rotundus is the main transmitter of domestic herbivorous rabies, which causes economic losses in cattle raising, being a serious public health problem. The use of Geographic Information Systems (GIS) allows the spatial monitoring of these bats shelters, which is an efficient way to prevent and control rabies. This study located shelters of D. rotundus in the Eastern Center region of São Paulo state and identified the types of shelters used (natural or artificial), their proximity to water, sexual composition, and population estimated of the colonies. Searches were carried out by colonies of vampire bats in natural and artificial shelters during 2002 to 2004, covering 18 municipalities. After located, the shelters were georeferenced, being recorded the nature of the shelter (natural or artificial), use (shelters of males, maternities, digestive) and estimated population. The data were incorporated into a GIS, producing a thematic map of the shelter’s location and their distance from the local water bodies. There were found 1.567 D. rotundus distributed in 94 shelters, where only six shelters (6.38%) were natural (caves). Most shelters (79.78%) were sparsely populated, with up to 15 bats, including male shelters (46 shelters) and 30 maternities (63.82% of maternities). Five shelters (5.37%) had between 50 and 100 bats and only two shelters (2.15%) had a population greater than 100 bats. Six shelters (6.38%) were inhabited houses, which is a concern for public health, as these may constitute a source of dangerous contamination for domestic and human carnivores. All the shelters were at a distance of up to 2 km of rivers or streams. The high percentage of artificial shelters found is a consequence of the intensification of the anthropic changes that increase the supply of food and shelter to D. rotundus, which associated with a large drainage network favors the dispersion of this species of bat in the region. The proximity of all D. rotundus shelters to the drainage network corroborates other studies in São Paulo state, where the areas close to the main rivers generally favor the existence of a larger number of shelters.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vampire Bat Desmodus Rotundus Shelters in the Central Region of São Paulo State, Brazil

Mialhe¹,

Moschini

Trevisan

2021

RVZ

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“…For example, in the Botucatu region of Brazil, an endemic region of VBR, 45% of D. rotundus vampire bats had virus neutralizing antibodies (VNA) titers ranging from 0.10 to 0.20 IU/ml, 9.31% had between 0.20 and 0.3 IU/ml, and 11% had VNA levels >0.30 IU/ml ( 14 ). Similarly, D. rotundus bats from 16 colonies were tested in the endemic region of Paraiba in Brazil and all animals presented anti-rabies antibodies titers in some level, with titers higher than 0.5 IU/ml in 30.1% of bats ( 15 ). Delpietro et al ( 16 ) reported the detection of 30% antibodies in bats after an outbreak of bovine rabies in Argentina.…”

Section: Introductionmentioning

confidence: 99%

Serological Surveillance of Rabies in Free-Range and Captive Common Vampire Bats Desmodus rotundus

et al. 2021

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The control of vampire bat rabies (VBR) in Brazil is based on the culling of Desmodus rotundus and the surveillance of outbreaks caused by D. rotundus in cattle and humans in addition to vaccination of susceptible livestock. The detection of anti-rabies antibodies in vampire bats indicates exposure to the rabies virus, and several studies have reported an increase of these antibodies following experimental infection. However, the dynamics of anti-rabies antibodies in natural populations of D. rotundus remains poorly understood. In this study, we took advantage of recent outbreaks of VBR among livestock in the Sao Paulo region of Brazil to test whether seroprevalence in D. rotundus reflects the incidence of rabies in nearby livestock populations. Sixty-four D. rotundus were captured during and after outbreaks from roost located in municipalities belonging to three regions with different incidences of rabies in herbivores. Sixteen seropositive bats were then kept in captivity for up to 120 days, and their antibodies and virus levels were quantified at different time points using the rapid fluorescent focus inhibition test (RFFIT). Antibody titers were associated with the occurrence of ongoing outbreak, with a higher proportion of bats showing titer >0.5 IU/ml in the region with a recent outbreak. However, low titers were still detected in bats from regions reporting the last outbreak of rabies at least 3 years prior to sampling. This study suggests that serological surveillance of rabies in vampire bats can be used as a tool to evaluate risk of outbreaks in at risk populations of cattle and human.

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“…Os prejuízos para a defesa sanitária animal são decorrentes principalmente do óbito de animais, fazendo com que o Brasil tenha uma perda de um milhão de dólares por ano, uma vez que são registrados oficialmente uma média de 1.746 casos anuais de raiva em bovinos em todas as regiões brasileiras (FERRARI, 2015). De acordo com Wada et al (2011) e Teixeira et al (2008, os bovinos constituem a espécie mais acometida pela raiva em território brasileiro, devido a sua abundância em relação à outras espécies animais.…”

Section: Introductionunclassified

Casos notificados de raiva em bovinos na região norte do brasil no período 2005-2017

et al. 2018

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Este estudo avaliou a frequência de notificações de casos de raiva bovina na Região Norte do Brasil, entre os anos de 2005-2017, por meio de consulta ao banco de dados do Sistema Nacional de Informação Zoossanitária do Ministério da Agricultura, Pecuária e Abastecimento (SIZ-MAPA). Foram realizadas 1.994 notificações no período analisado. Um total de 89,07% das 1.994 notificações foram procedentes dos estados do Tocantins, Pará e Rondônia. Os estados do Amazonas, Acre, Roraima e Amapá foram os que menos registraram notificações no período. Constatou-se grande variação na frequência de notificações, o que necessita de estudos mais aprofundados, embora seja de conhecimento que as alterações, nos fatores ecológicos das populações de quirópteros hematófagos, relacionadas à receptividade e vulnerabilidade da Região Norte, podem estar envolvidas. Embora o estudo não possa comprovar a ciclicidade nos surtos de raiva bovina descrita em outros estudos, foi verificado elevação no número de notificações a cada dois, três ou cinco anos para a maior parte dos estados da Região. Portanto, foi constatado a endemicidade da raiva bovina na Região Norte, sendo necessárias medidas preventivas que possam assegurar o controle da doença e, consequentemente, a redução dos prejuízos econômicos da doença na Região.

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Morcego hematófago comum Desmodus rotundus no Vale do Paraíba, Estado de São Paulo: abrigos diurnos, agrupamentos, lesões corporais e sorologia antirrábica

Cited by 4 publications

References 20 publications

Vampire Bat Desmodus Rotundus Shelters in the Central Region of São Paulo State, Brazil

Vampire Bat Desmodus Rotundus Shelters in the Central Region of São Paulo State, Brazil

Serological Surveillance of Rabies in Free-Range and Captive Common Vampire Bats Desmodus rotundus

Casos notificados de raiva em bovinos na região norte do brasil no período 2005-2017

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