Prevalence of serum antibodies to hantavirus in a rural population from the southern state of Santa Catarina, Brazil

Introduction: Rodent-borne hantaviruses cause severe human diseases. We completed a serological survey of hantavirus infection in rural inhabitants of Turvo County, in the southern state of Santa Catarina, Brazil, in which seropositivity for hantavirus was correlated to previous disease in the participants. Methods: The levels of IgG antibodies to hantavirus Araraquara in the sera of 257 individuals were determined using an immunoenzymatic assay. Results: IgG antibodies to hantavirus were found in 2.3% of the participants. All seropositive participants reported previous disease with symptoms suggestive of hantavirus cardiopulmonary syndrome. Conclusions: Human infections causing unreported cardiopulmonary syndrome probably occur in the southern state of Santa Catarina.

Consolidation of international guidelines for the management of canine populations in urban areas and proposal of performance indicators

Consolidation of international guidelines for the management of canine populations in urban areas and proposal of performance indicators The objective of this study is to propose a generic program for the management of urban canine populations with suggestion of performance indicators. The following international guidelines on canine population management were revised and consolidated: World Health Organization, World Organisation for Animal Health, World Society for the Protection of Animals, International Companion Animal Management Coalition, and the Food and Agriculture Organization. Management programs should cover: situation diagnosis, including estimates of population size; social participation with involvement of various sectors in the planning and execution of strategies; educational actions to promote humane values, animal welfare, community health, and responsible ownership (through purchase or adoption); environmental and waste management to eliminate sources of food and shelter; registration and identification of animals; animal health care, reproductive control; prevention and control of zoonoses; control of animal commerce; management of animal behavior and adequate solutions for abandoned animals; and laws regulating responsible ownership, prevention of abandonment and zoonoses. To monitor these actions, four groups of indicators are suggested: animal population indicators, human/animal interaction indicators, public service indicators, and zoonosis indicators. The management of stray canine populations requires political, sanitary, ethologic, ecologic, and humanitarian strategies that are socially acceptable and environmentally sustainable. Such measures must also include the control of zoonoses such as rabies and leishmaniasis, considering the concept of "one health," which benefits both the animals and people in the community.

Detection of hantavirus in bats from remaining rain forest in São Paulo, Brazil

Background The significant biodiversity found in Brazil is a potential for the emergence of new zoonoses. Study in some places of the world suggest of the presence to hantavirus in tissues of bats. Researches of hantavirus in wildlife, out rodents, are very scarce in Brazil. Therefore we decided to investigate in tissues of different species of wild animals captured in the same region where rodents were detected positive for this virus. The present work analyzed ninety-one animals (64 rodents, 19 opossums, and 8 bats) from a region of the Atlantic forest in Biritiba Mirin City, São Paulo State, Brazil. Lungs and kidneys were used for RNA extraction. Findings The samples were screened for evidence of hantavirus infection by SYBR-Green-based real-time RT-PCR. Sixteen samples positive were encountered among the wild rodents, bats, and opossums. The detection of hantavirus in the lungs and kidneys of three marsupial species (Micoureus paraguayanus, Monodelphis ihering, and Didelphis aurita) as well in two species of bats (Diphylla ecaudata and Anoura caudifer) is of significance because these new hosts could represent an important virus reservoirs.

Caracterização demográfica das populações de cães e gatos supervisionados do município de São Paulo

A caracterização das populações canina e felina domiciliadas do município de São Paulo (SP) foi realizada utilizando-se amostragem complexa com seleção aleatória em dois estágios. Em cada distrito administrativo, foram visitados seis setores censitários e 20 domicílios em cada setor sorteado, de setembro de 2006 a setembro de 2009, totalizando 11.272 entrevistas. A razão homem:cão foi de 4,34, e a razão homem:gato de 19,33. A população canina foi estimada em 2.507.401, e a felina em 562.965. A população canina era composta por 52,7% de machos, e a felina por 45,1%. A proporção de fêmeas esterilizadas, 23,4% das cadelas e 46,1% das gatas, é maior que a de machos, 11,4% dos cães e 31,5% dos gatos. A idade média dos cães era de 4,99 anos e a dos gatos de 3,53 anos. A proporção de cães com restrição de acesso à rua, 64,4%, foi maior que a de gatos, 42,5%. A média de animais/domicílio foi estimada em 1,60 para cães e 1,69 para gatos. A guarda destes animais está associada a fatores culturais, assim a caracterização da população de animais é base da estruturação adequada de programas de controle populacional e de zoonoses.

Phylogenetic relation among bovine rabies cases from Minas Gerais and Sao Paulo States, Brazil: a possible common origin

Acknowledgements: CAPES, FAPESP process number 2011/06236-0

Distribuição geográfica e caracterização molecular de vírus da raiva de isolados herbívoros procedentes do norte do Brasil

Suporte Financeiro: CAPES

Experimental antiviral therapy against different rabies virus lineages using transfection with anti-rabies antibodies

Financial Support: FAPESP