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| Registros recuperados: 51 | |
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| PEREIRA,Adriany Duarte; PINTO,Pedro Luiz Silva; CAMARGO,Juliana de Souza Almeida Aranha; SOUZA,Juliana Bianca Rocha de; AMANTE,Carlos Antônio; SOUZA,Viviane Krominski Graça de; SIMONE,Luiz Ricardo Lopes de; CAMARGO,Luís Marcelo Aranha. |
| ABSTRACT Schistossomiasis is a parasitic disease, caused by helminths of the genus Schistosoma and transmitted in Brazil by snails of the genus Biomphalaria. The municipality of Ouro Preto do Oeste, Rondônia, in the Brazilian Amazon Region, has unusually registered more than 900 cases of schistosomiasis in the last 10 years. The aim of this study was to investigate de potential of transmission of schsitosomiasis in Ouro Preto do Oeste. A total of 1,196 people in a risk area for the disease transmission were requested to answer a clinical-epidemiological survey and to collect feces samples for examination. All the samples that underwent examination resulted negative for S. mansoni. Two hundred and sixty-eight snails were collected in the locality of Ouro... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Schistosomiasis; Amazon; Transmission. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000400377 |
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| Sampaio Júnior,A.; Batista,M.C.S.; Cruz,M.S.P.; Silva,R.A.B.; Bona Nascimento,C.; Werneck,G.L.. |
| The prevalence of anti-lentiviruses antibodies of small ruminants was investigated in goat herds in the city of Teresina, PI, Brazil. A seroepidemiological survey was conducted involving 480 animals, apparently healthy, belonging to six rural properties. The diagnostic test was the agar gel immunodiffusion (AGID), using antigens produced from cellular cultures infected with caprine arthritis encephalitis virus (CAEV Cork). Prevalences by gender and age were estimated considering sampling fractions for each farm. A general prevalence of 4.2%, was observerved, being 4.2% for females and 3.6% for males. Prevalences were higher among older goats. Regarding the breed standard, 23.5% were of the Anglo Nubian, 5.9% of the Boer, 35.3% Anglo Nubian x Boer... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Caprine arthritis encephalitis virus; Transmission; Epidemiology; Immunodiffusion. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000300032 |
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| Lima,C.C.V.; Ayres,M.C.C.; Pinheiro,R.R.; Costa,J.N.; Andrioli,A.; Souza,T.S.; Azevedo,D.A.A.; Santos,V.W.S.; Araújo,J.F.; Sousa,A.L.M.; Peixoto,R.M.; Damasceno,E.M.; Costa Neto,A.O.. |
| ABSTRACT With the objective of detecting the presence of caprine lentivirus (CLV) in ewe milk and in ram semen, ten matrixes and four reproducers experimentally infected with CLV were used. Samples of ewe milk were collected during the four months of lactation, five collections per animal, totaling 50 samples. Regarding the rams, eight semen collections were made per animal, during one year of experimentation, totaling 32 samples. The milk and semen samples were submitted to DNA extraction and the nested polymerase chain reaction test (nPCR) to detect CLV proviral DNA. Eight (16%) of the milk samples were positive in nPCR originating from two ewes. Only one (3.12%) semen sample was positive. The amplification products were sequenced, and were confirmed to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lentiviruses; Transmission; Cross infection. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000200391 |
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| Moreira-Oliveira,M.S.; Oliveira,H.B.; Pace,F.; Stehling,E.G.; Rocha,M.M.M.; Aily,D.C.G.; Brocchi,M.; Silveira,W.D.. |
| The objective of this study was to investigate the possible transmission of tuberculosis among 39 inmates with positive Mycobacterium tuberculosis smears in four correctional institutions located in Campinas City, SP, Brazil over a 19-month period. Fifty-one M. tuberculosis isolates from these inmates were characterized according to the number of IS6110 insertion elements present in their genomic DNA. The number of insertion elements in M. tuberculosis isolates varied from two to twelve. The dendrogram of similarity resulted in the grouping the isolates in six main clusters. These results, associated to epidemiological data, suggested the transmission of tuberculosis among inmates of the same and different institutions inmates. Univariate analysis of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycobacterium tuberculosis; Transmission; Molecular genotyping; Campinas; SP; Brazil. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000600009 |
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| Victoria,Marilú Barbieri; Victoria,Flamir da Silva; Torres,Kátia Luz; Kashima,Simone; Covas,Dimas Tadeu; Malheiro,Adriana. |
| The association of HIV infection and hepatitis C virus (HCV) infection often occurs because both viruses share the same transmission routes, increasing the possibility of HIV/HCV coinfection. World prevalence greater than 30% of coinfected cases is estimated, and it can reach 90% depending on the transmission route. With the aim of determining the frequency and profile of HIV/HCV coinfected patients, a descriptive analysis was carried out with patients with HIV/AIDS whose serology was positive for hepatitis C virus (HCV), cared for at the Fundação de Medicina Tropical do Amazonas from 2000 to 2007. In the present study, of the 2,653 AIDS cases notified in SINAN, 1,582 patients underwent serology test for hepatitis C, and a frequency of 4.42% (n = 70) of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coinfection; Hepatitis C; HIV; Epidemiology; Transmission. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000200004 |
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| Paoli,Juliana de; Wortmann,André Castagna; Klein,Mirelli Gabardo; Pereira,Vagner Reinaldo Zingalli Bueno; Cirolini,Adriana Maria; Godoy,Bibiane Armiliato de; Fagundes,Nelson Jurandi Rosa; Wolf,Jonas Michel; Lunge,Vagner Ricardo; Simon,Daniel. |
| ABSTRACT Background Hepatitis B virus (HBV) infection is a major public health problem in Brazil. HBV endemicity is usually moderate to low according to geographic regions, and high prevalence of this virus has been reported in people of some specific Brazilian counties, including those with a strong influence of Italian colonization in southern Brazil. Analysis of HBV diversity and identification of the main risk factors to HBV infection are necessary to understand hepatitis B epidemiology in these high prevalence regions in southern Brazil. Objective To investigate epidemiological characteristics and HBV genotypes and subgenotypes circulating in a specific city with high HBV prevalence. Methods A cross-sectional study was performed with 102 HBV... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HBV infection; Epidemiology; HBV genotypes; Risk factor; Transmission; Cross-sectional studies. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000400294 |
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| Slavov,S.N.; Otaguiri,K.K.; Kashima,S.; Covas,D.T.. |
| Zika virus (ZIKV), a mosquito-borne flavivirus, belongs to the Flaviviridae family, genus Flavivirus. ZIKV was initially isolated in 1947 from a sentinel monkey in the Zika forest, Uganda. Little clinical importance was attributed to ZIKV, once only few symptomatic cases were reported in some African and Southeast Asiatic countries. This situation changed in 2007, when a large outbreak was registered on the Yap Island, Micronesia, caused by the Asian ZIKV lineage. Between 2013 and 2014, ZIKV spread explosively and caused many outbreaks in different islands of the Southern Pacific Ocean and in 2015 autochthonous transmission was reported in Brazil. Currently, Brazil is the country with the highest number of ZIKV-positive cases in Latin America. Moreover,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zika virus; ZIKV; Transmission; Epidemiology; Congenital infection; Brazil. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000500201 |
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| Fram,D.; Castrucci,F.M.; Taminato,M.; Godoy-Martinez,P.; Freitas,M.C.S.; Belasco,A.; Sesso,R.; Pacheco-Silva,A.; Pignatari,A.C.; Barbosa,D.. |
| The objective of this study was to investigate the occurrence of vancomycin-resistant Enterococcus (VRE) cross-transmission between two patient groups (long-term dialysis and kidney transplant patients). Molecular typing, by automated ribotyping with the RiboPrinter Microbial Characterization System (Qualicon, USA), was used to analyze VRE isolates from 31 fecal samples of 320 dialysis patients and 38 fecal samples of 280 kidney transplant patients. Clonal spread of E. faecalis and E. casseliflavus was observed intragroup, but not between the two groups of patients. In turn, transmission of E. gallinarum and E. faecium between the groups was suggested by the finding of vancomycin-resistant isolates belonging to the same ribogroup in both dialysis and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vancomycin-resistant Enterococcus; Transmission; Dialysis; Kidney transplant. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000100016 |
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| Rossi,Daise Aparecida; Fonseca,Belchiolina Beatriz; Melo,Roberta Torres de; Felipe,Gutembergue da Silva; Silva,Paulo Lourenço da; Mendonça,Eliane Pereira; Filgueiras,Ana Luzia Lauria; Beletti,Marcelo Emilio. |
| Campylobacter coli is an important species involved in human cases of enteritis, and chickens are carriers of the pathogen mainly in developing country. The current study aimed to evaluate the transmission of C. coli and its pathogenic effects in chicken embryos. Breeder hens were inoculated intra-esophageally with C. coli isolated from chickens, and their eggs and embryos were analyzed for the presence of bacteria using real-time PCR and plate culture. The viability of embryos was verified. In parallel, SPF eggs were inoculated with C. coli in the air sac; after incubation, the embryos were submitted to the same analysis as the embryos from breeder hens. In embryos and fertile eggs from breeder hens, the bacterium was only identified by molecular methods;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Campylobacter coli; Viability; Transmission; Breeder hens. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200014 |
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| Reyes Osornio, Maribel. |
| De huertas comerciales de mango de Guerrero y Michoacán, México, se colectaron trips por muestreo aleatorio de árboles para identificación de especies, determinar su relación forética con Fusarium spp., transmisión de estos hongos, agentes causales de malformación vegetativa y floral de mango, y fundación de colonias de trips en condiciones asépticas en cámaras bioclimáticas. Se obtuvieron ejemplares de trips pertenecientes a dos géneros y 11 especies, siete pertenecientes a Scirtothrips y cuatro a Frankliniella. Los trips fueron recolectados detejidos vegetativos y florales, asintomáticos o malformados. Se reporta por primera vez a F. difficilis, F. occidentalis, F. gardeniae, F. minor, S. bisbravoae y S. silvicola asociados al cultivo de mango en... |
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Palavras-chave: Fusarium; Trips; Transmisión; Foresia; Frankliniella; Scirtothrips; Thrips; Transmission; Phoresy; Fitopatología; Doctorado. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2083 |
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| Rivera Jiménez, Mally Naty. |
| Con el objetivo de estudiar la marchitez del chile Poblano, se colectaron plantas y frutos con síntomas de esta enfermedad en tres localidades de San Martín Texmelucan, Puebla. Durante el ciclo P/V 2007 se evaluaron 5 tratamientos: Glomus intrarradix, Bat Guano, Agrohomeopatía, Control químico tradicional y testigos, como alternativas para reducir el daño causado por los patógenos. De este experimento se aislaron de la base del tallo y cuello de la raíz, cepas patogénicas las cuales se identificaron mediante estudios filogenéticos y morfológicos como Fusarium oxysporum y F. solani species complexes. Mediante microscopía de luz se observó que estos aislamientos causaron daño a nivel histológico en epidermis, parénquima, endodermis y sistema vascular... |
| Tipo: Tesis |
Palavras-chave: Histopatología; Marchitez; Oomycetos; Transmisión; Doctorado; Producción de Semillas; Histopathology; Wilt disease; Oomycetes; Transmission. |
| Ano: 2009 |
URL: http://hdl.handle.net/10521/1302 |
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| Kastberg, Peter; Aarhus University, Business and Social Sciences, Business Communication; pk@asb.dk. |
| The market for organic foods is growing, however, the proportion of consumers buying organic foods is still considered low. Research shows that a significant barrier to consumers purchasing more organic foods is lack of information. This leads the relevant body of research to call for better communication around organic foods. The same body of research, however, neither questions what good communication surrounding organic foods is, nor what would make it better. Applying the communication theoretical formats of transmission, interaction, and coaction, respectively, onto instances of organic communication activities, I will discuss to what extent each format encourages consumer participation and learning. Transmission, typically in the form of monologuous... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Coaction; Communication; Interaction; Knowledge communication; Transmission. |
| Ano: 2015 |
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| Lallias, Delphine; Arzul, Isabelle; Heurtebise, Serge; Ferrand, Sylvie; Chollet, Bruno; Robert, Maeva; Beaumon, Andy; Boudry, Pierre; Morga, Benjamin; Lapegue, Sylvie. |
| Bonamiosis is a parasitic disease (causative agent: Bonamia ostreae) affecting the European flat oyster Ostrea edulis, responsible for a drastic decline in its aquaculture production. Selective breeding programs for resistance to bonamiosis have been undertaken to counter this disease. In the present study, a 6-month cohabitation challenge experiment was performed in order to transmit the disease from wild oysters injected with the parasite to two tested families of oysters (20 and 8-month old at the beginning of the experiment, with different genetic backgrounds) originating from a selective breeding program developed by IFREMER in France. Mortalities were checked daily and ventricular heart smears were performed on dying or moribund oysters to detect the... |
| Tipo: Text |
Palavras-chave: Heart smear; Transmission; Cohabitation experiment; Bonamia ostreae; Ostrea edulis. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4783.pdf |
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| Registros recuperados: 51 | |
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