scholarly journals Evidence of hantavirus infection in wild rodents captured in a rural area of the state of São Paulo, Brazil

2004 ◽  
Vol 24 (2) ◽  
pp. 71-73 ◽  
Author(s):  
Elba Regina S. de Lemos ◽  
Paulo S. D'Andrea ◽  
Cibele R. Bonvicino ◽  
Kátia M. Famadas ◽  
Paula Padula ◽  
...  
Keyword(s):  
Sao Paulo ◽  
Hantavirus Infection ◽  
São Paulo ◽  
Wild Rodents ◽  
Myocastor Coypus ◽  
Suburban Areas ◽  
Andes Virus ◽  
Etiological Agents ◽  
Antigen Antibody ◽  
Oligoryzomys Flavescens

Hantaviruses are the etiological agents of the Hantavirus Cardio-Pulmonary Syndrome, a serious rodent-borne disease in Brazil. In order to investigate the occurrence of hantavirus infection in wild rodents, a survey was conducted in three different suburban areas of the municipality of Pedreira, State of São Paulo, Brazil. Of the 145 wild animals captured belonging to 12 different species identified by morphology and karyological analysis, 107 were rodents of the following species: Akodon montensis, Bolomys lasiurus, Calomys tener, Oligoryzomys nigripes, Oligoryzomys flavescens, and Myocastor coypus. Blood samples from these rodents were assayed for the presence of antibodies against hantavirus by IgG ELISA using Andes recombinant nucleocapsid antigen. Antibody reactive to Andes virus was found in two different species, O. nigripes and O. flavescens. These results indicate a potential risk for hantavirus transmission to humans in this area, where reservoir rodents are present in peridomestic settings.

scholarly journals Ticks infesting wild small rodents in three areas of the state of São Paulo, Brazil

2016 ◽  
Vol 46 (5) ◽  
pp. 871-875 ◽  
Author(s):  
Thiago Fernandes Martins ◽  
Marina Gea Peres ◽  
Francisco Borges Costa ◽  
Thais Silva Bacchiega ◽  
Camila Michele Appolinario ◽  
...  
Keyword(s):  
Sao Paulo ◽  
Species Level ◽  
São Paulo ◽  
Small Rodents ◽  
Wild Rodents ◽  
Morphological Examination ◽  
Paulo State ◽  
The Mean ◽  
Oligoryzomys Flavescens ◽  
Mitochondrial Rdna

ABSTRACT: From May to September 2011, a total of 138 wild rodents of the Cricetidae family were collected in the cities of Anhembi, Bofete and Torre de Pedra, in São Paulo State. All animals were examined for the presence of ticks, which were collected and identified at species level in the laboratory by morphological examination (for adults, nymphs and larvae) and molecular biology, by sequencing of a fragment of the 16S mitochondrial rDNA (for larvae). A total of 47 ticks (21 larvae and 26 nymphs) were collected from rodents, identified as 21 larvae and 23 nymphs of Amblyomma ovale (collected on Oligoryzomys nigripes , Oligoryzomys flavescens , Sooretamys agouya and Nectomys squamipes ), two nymphs of Ixodes schulzei (O. nigripes and O. flavescens ) and an Amblyomma sculptum nymph in S. agouya . The overall prevalence of parasitism by A. ovale was 4.3% for larvae, and 10.1% for nymphs. The mean intensity of parasitism was 3.5 larvae/parasitized animal, and 1.6 nymphs/parasitized animal. One O. nigripes was found parasitized by both larva and nymph of A. ovale , and another O. nigripes was parasitized simultaneously by an I. schulzei nymph and five A. ovale nymphs. This research reports the following unpublished records: A. ovale on O. flavescens , O. nigripes and S. agouya ; A. sculptum on S. agouya ; and I. schulzei on O. flavescens and O. nigripes .

scholarly journals Diagnosis of hantavirus infection in humans and rodents in Ribeirão Preto, State of São Paulo, Brazil

2010 ◽  
Vol 43 (4) ◽  
pp. 348-354 ◽  
Author(s):  
Glauciane Garcia de Figueiredo ◽  
Alessandra Abel Borges ◽  
Gelse Mazzoni Campos ◽  
Alex Martins Machado ◽  
Fabiano Pinto Saggioro ◽  
...  
Keyword(s):  
Sao Paulo ◽  
Nucleotide Sequences ◽  
Hantavirus Infection ◽  
São Paulo ◽  
Wild Rodents ◽  
Rt Pcr ◽  
School Of Medicine ◽  
Causative Agents ◽  
Serious Disease ◽  
Araraquara Virus

INTRODUCTION: Hantavirus pulmonary and cardiovascular syndrome (HPCS) is an emerging serious disease in the Americas. Hantaviruses (Bunyaviridae) are the causative agents of this syndrome and are mainly transmitted through inhalation of aerosols containing the excreta of wild rodents. In the Ribeirão Preto region (state of São Paulo, Brazil), HPCS has been reported since 1998, caused by the Araraquara virus (ARAV), for which Necromys lasiurus is the rodent reservoir. This study aimed to show diagnostic results relating to infection in humans and rodents, obtained at the Virology Research Center of the Ribeirão Preto School of Medicine, University of São Paulo, between 2005 and 2008. METHODS: HPCS was diagnosed by means of ELISA and/or RT-PCR in 11 (21.2%) out of 52 suspected cases, and 54.4% of these were fatal. Furthermore, 595 wild rodents (Necromys lasiurus, Akodon sp, Calomys tener and Oligoryzomys sp) were caught between 2005 and 2008. RESULTS: Fifteen (2.5%) of these rodents presented antibodies for hantavirus, as follows: Necromys lasiurus (4%), Calomys tener (1.9%) and Akodon sp (1.5%). Nucleotide sequences obtained through RT-PCR from one HPCS patient and one Calomys tener rodent were compared with hantavirus sequences from GenBank, which showed that both were homologous with ARAV. CONCLUSIONS: This work corroborates previous studies showing that ARAV is the hantavirus causing HPCS in the Ribeirão Preto region. It also shows that rodents infected with hantavirus represent a constant risk of transmission of this virus to man.

scholarly journals Metodología para la rehabilitación de grandes centros comerciales

2018 ◽  
Author(s):  
Jorge Carretero Monteagudo
Keyword(s):  
Urban Area ◽  
Sao Paulo ◽  
Shopping Mall ◽  
Low Density ◽  
São Paulo ◽  
Shopping Malls ◽  
Urban Background ◽  
Suburban Areas ◽  
Architectural Features ◽  
The City

El estudio de las características urbanas y arquitectónicas, y las posibles medidas de rehabilitación para los centros comerciales de gran tamaño, fueron el punto de partida para evaluar la sostenibilidad medioambiental y urbana de los mismos. En la presente tesis, se desarrolló una metodología de evaluación de cara al análisis de las medidas de rehabilitación que pudieran aplicarse sobre un centro comercial. Se consideraron cuatro familias de medidas: Rehabilitación ecoeficiente, inserción de elementos verdes, inserción de usos en el centro, y una familia de medidas de rehabilitación aplicadas sobre el entorno urbano. Ocho casos de centros comerciales fueron analizados: tres en el contexto urbano de Sao Paulo, tres en el contexto urbano de Madrid, y tres en el contexto de la Norteamérica suburbana. El resultado del estudio permitió establecer un criterio para orientar las operaciones de rehabilitación de centros comerciales hacia ciertos ámbitos de la sostenibilidad. Las conclusiones finales del estudio fueron que es importante considerar varias medidas de rehabilitación de forma simultánea, a la vez que considerar en la escala urbana global para lograr una mejora relevante de cara a la sostenibilidad. Esto último especialmente en centros comerciales ubicados en entornos periféricos de baja densidad. Abstract. The studio of both the urban and architectural features, as well as the retrofitting means of application on a shopping mall, was the parting point to evaluate the sustainability of large surface shopping malls. A methodology to evaluate the efficacy of the retrofitting means of application on malls was developed, considering four families of retrofitting means: Eco efficient refurbishment, insertion of green elements, insertion of uses, and a family of retrofitting means applied in the urban area surrounding the mall. Eight cases were analyzed: Three located in the urban background of the city of Sao Paulo, Three located in Madrid, and two located in the background of the Suburban U.S.A. The result of this study was the establishment of criteria to focus the operations of any retrofitting program applied on a shopping mall towards some facts related to sustainability. Being the final conclusions, the affirmation that is important to consider various means of retrofitting simultaneously on the shopping mall, as well as to consider the wide urban scale to be retrofitted, in order to achieve a relevant improvement towards sustainability. Specially in cases of shopping malls located in low density suburban areas.

Detection of etiological agents of malaria in howler monkeys from Atlantic Forests, rescued in regions of São Paulo city, Brazil

2011 ◽  
Vol 40 (6) ◽  
pp. 392-400 ◽  
Author(s):  
Tasciane Yamasaki ◽  
Ana M.R.C. Duarte ◽  
Izilda Curado ◽  
Maria E.L. Summa ◽  
Dafne V.D.A. Neves ◽  
...  
Keyword(s):  
Sao Paulo ◽  
São Paulo ◽  
Howler Monkeys ◽  
Etiological Agents

scholarly journals Vaccinia virus in feces of wild rodents from São Paulo State, Brazil

2016 ◽  
Vol 53 ◽  
pp. 128
Author(s):  
J. Megid ◽  
M.G. Peres ◽  
T. Bachiega ◽  
C.M. Appolinario ◽  
A.F. Vicente ◽  
...  
Keyword(s):  
Vaccinia Virus ◽  
Sao Paulo ◽  
São Paulo ◽  
Wild Rodents ◽  
Paulo State ◽  
São Paulo State

scholarly journals Novel orthohepeviruses in wild rodents from São Paulo State, Brazil

Virology ◽  
2018 ◽  
Vol 519 ◽  
pp. 12-16 ◽  
Author(s):  
William Marciel de Souza ◽  
Marilia Farignoli Romeiro ◽  
Gilberto Sabino-Santos ◽  
Felipe Gonçalves Motta Maia ◽  
Marcilio Jorge Fumagalli ◽  
...  
Keyword(s):  
Sao Paulo ◽  
São Paulo ◽  
Wild Rodents ◽  
Paulo State ◽  
São Paulo State

scholarly journals Estabilização de solos siltosos expansivos de São Paulo com ligantes com elevado teor de escória para pavimentação

TRANSPORTES ◽  
2010 ◽  
Vol 18 (2) ◽  
Author(s):  
Juliana Kawahashi ◽  
Ronaldo Bitello Tomei Junior ◽  
Evelyn Kaori Tatsuta ◽  
José Tadeu Balbo ◽  
Dirce Carregã Balzan
Keyword(s):  
Blast Furnace ◽  
Resilient Modulus ◽  
Soil Aggregate ◽  
Sao Paulo ◽  
São Paulo ◽  
Suburban Areas ◽  
Soil Cement ◽  
Good Improvement ◽  
Cement Stabilization ◽  
Blast Furnace Cement

<p><strong>Resumo: </strong>Ocorrências de solos residuais siltosos de rochas de micaxisto e gnaisse em vastas áreas da região de São Paulo representam uma grande dificuldade para a pavimentação de vias em periferias. Tais solos apresentam expansão elevada quando saturados e baixa capacidade de suporte, sendo que sua estabilização é tradicionalmente realizada com emprego de agregados quando não são simplesmente descartados. Isso impõe custos elevados de pavimentação nessas zonas. Neste artigo são apresentadas recentes experiências com a modificação desses solos com cimentos de alto forno, buscando-se controlar sua expansão e com ganhos de capacidade portante. Foram obtidos resultados positivos no controle de expansão com baixos consumos de ligante hidráulico, porém sem melhorias significativas quanto ao módulo de resiliência das misturas. Misturas solo-brita-cimento requereram maior consumo ligante com aumento do módulo de resiliência, com restrições para a resistência à tração do material. Os resultados apontam a viabilidade das misturas estudadas para reforços de subleitos e sub-bases.</p><p><strong>Abstract: </strong>Residual silt finely granulated soils from micaschists and gneisses in Sao Paulo represent huge limitations for urban paving in suburban areas. Those soils have high expansion as well as low bearing capacity; its stabilization, whenever possible, is done by means of soil-aggregate mixtures or they are replaced by alternative soils at high excavation and transportation costs. This paper analyses results of soil-cement stabilization for such soils using blast furnace cements aiming at the control of its expansion and improvements on its strength. Nevertheless good results were achieved for controlling expansion with low cement content, resilient modulus did not increase. Soil-aggregate-cement mixtures achieved good improvement on its resilient modulus although the tensile strength of the material was still low, making it not prudent, under a mechanistic stand point, to use it as pavement bases. Results point out the suitability of the blast furnace cement stabilized soils as subgrade and sub-bases layers.</p>

scholarly journals Toxoplasma gondii antibodies in wild rodents and marsupials from the Atlantic Forest, state of São Paulo, Brazil

2015 ◽  
Vol 24 (3) ◽  
pp. 379-382 ◽  
Author(s):  
Solange Maria Gennari ◽  
Maria Halina Ogrzewalska ◽  
Herbert Sousa Soares ◽  
Danilo Gonçalves Saraiva ◽  
Adriano Pinter ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Atlantic Forest ◽  
Protozoan Parasite ◽  
Sao Paulo ◽  
Southeastern Brazil ◽  
São Paulo ◽  
Wild Rodents ◽  
Serum Samples ◽  
Modified Agglutination Test ◽  
Didelphis Aurita

Toxoplasma gondii is a protozoan parasite that infects a large spectrum of warm-blooded animals, including humans. Small rodents and marsupials play an important role in the epidemiology of T. gondii because they are sources of infection for domestic and feral cats. Serum samples from 151 rodents and 48 marsupials, captured in the Atlantic Forest, São Paulo State, southeastern Brazil, were analyzed for the presence of T. gondii antibodies. Antibodies detected by the modified agglutination test (MAT ≥ 25) were found in 8.6% (13/151) of the rodents and 10.4% (5/48) of the marsupials, with titers ranging from 25 to 6400 and from 25 to 3200, respectively for the rodents and marsupials. Three of the eight species of rodents (Akodon spp., Oligoryzomys nigripesand Rattus norvegicus), and one from the four marsupial species (Didelphis aurita) presented positive animals. T. gondii was described for the first time in the rodent Oligoryzomys nigripes.

scholarly journals Parasitic arthropods of some wild rodents from Juréia-Itatins Ecological Station, State of São Paulo, Brazil

2002 ◽  
Vol 97 (7) ◽  
pp. 959-963 ◽  
Author(s):  
David Eduardo Paolinetti Bossi ◽  
Arício Xavier Linhares ◽  
Helena de Godoy Bergallo
Keyword(s):  
Sao Paulo ◽  
São Paulo ◽  
Wild Rodents
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