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Id: biblio-951802
Autor: Djordjevic, Jasna; Boskovic, Marija; Starcevic, Marija; Ivanovic, Jelena; Karabasil, Nedjeljko; Dimitrijevic, Mirjana; Brankovic Lazic, Ivana; Baltica, Milan Z.
Título: Survival of Salmonella spp. in minced meat packaged under vacuum and modified atmosphere
Fonte: Braz. j. microbiol;49(3):607-613, July-Sept. 2018. tab.
Idioma: en.
Resumo: Abstract The effect of different modified atmosphere packaging regimes on the behavior of Salmonella spp. on minced meat was studied. Minced meat was experimentally contaminated with a Salmonella spp. cocktail (S. Enteritidis, S. Typhimurium, S. Infantis and S. Arizonae), packaged under vacuum or modified atmosphere with initial headspaces containing 20%O2/50%CO2/30%N2 and 20%O2/30%CO2/50%N2) and stored at 3 ± 1 °C for 12 days. Samples were analyzed for Salmonella spp., viable and lactic acid bacteria count every third day. Salmonella spp. counts decreased during storage in all packaging types, with reductions of about 1.5 log CFU/g. A significant difference (p < 0.01) was noted between Salmonella spp. counts in meat packaged in vacuum and modified atmospheres, although there was no significant difference in Salmonella spp. count between meat packaged in 50%CO2, and meat packaged in 30%CO2. At the end of the study, there were significant differences (p < 0.01; p < 0.05) in total viable and lactic acid bacterial counts between meat packaged in vacuum and modified atmosphere, and the lowest counts were noted in meat packaged in modified atmosphere with 50%CO2.
Descritores: Salmonella/crescimento & desenvolvimento
Embalagem de Alimentos/métodos
Viabilidade Microbiana
Carne/microbiologia
-Salmonella/isolamento & purificação
Salmonella/genética
Suínos
Vácuo
Contagem de Colônia Microbiana
Embalagem de Alimentos/instrumentação
Carne/análise
Limites: Animais
Bovinos
Tipo de Publ: Estudos de Avaliação
Responsável: BR1.1 - BIREME


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Id: biblio-974322
Autor: Pontes, Patricia Silveira de; Coutinho, Selene Dall' Acqua; Iovine, Renata de Oliveira; Cunha, Marcos Paulo Vieira; Knöbl, Terezinha; Carvalho, Vania Maria de.
Título: Survey on pathogenic Escherichia coli and Salmonella spp. in captive cockatiels (Nymphicus hollandicus)
Fonte: Braz. j. microbiol;49(supl.1):76-82, 2018. tab, graf.
Idioma: en.
Resumo: Abstract We surveyed healthy captive cockatiels (Nymphicus hollandicus) for Escherichia coli and Salmonella spp. Cloacal swabs were collected from 94 cockatiels kept in commercial breeders, private residencies and pet shops in the cities of São Paulo/SP and Niterói/RJ (Brazil). Three strains of E. coli from each individual were tested for the presence of ExPEC-, APEC- and DEC-related genes. We evaluated the blaTEM, blaSHV, blaOXA, blaCMY, blaCTX-M, tetA, tetB, aadA, aphA, strAB, sul1, sul2, sul3, qnrA, qnrD, qnrB, qnrS, oqxAB, aac (6)′-Ib-cr, qepA resistance genes and markers for plasmid incompatibility groups. Salmonella spp. was not detected. E. coli was isolated in 10% of the animals (9/94). Four APEC genes (ironN, ompT, iss and hlyF) were detected in two strains (2/27-7%), and iss (1/27-4%) in one isolate. The highest resistance rates were observed with amoxicillin (22/27-82%), ampicillin (21/27-79%), streptomycin (18/27-67%), tetracycline (11/27-41%). Multiresistance was verified in 59% (16/27) of the isolates. We detected strAB, bla TEM, tetA, tetB, aadA, aphaA, sul1, sul2, sul3 resistance genes and plasmid Inc groups in 20 (74%) of the strains. E. coli isolated from these cockatiels are of epidemiological importance, since these pets could transmit pathogenic and multiresistant microorganisms to humans and other animals.
Descritores: Salmonella/isolamento & purificação
Salmonelose Animal/microbiologia
Doenças das Aves/microbiologia
Cacatuas/microbiologia
Escherichia coli/isolamento & purificação
Infecções por Escherichia coli/veterinária
-Plasmídeos/genética
Plasmídeos/metabolismo
Salmonella/classificação
Salmonella/fisiologia
Salmonella/genética
Proteínas de Bactérias/genética
Proteínas de Bactérias/metabolismo
Brasil
Farmacorresistência Bacteriana Múltipla
Escherichia coli/classificação
Escherichia coli/efeitos dos fármacos
Escherichia coli/genética
Infecções por Escherichia coli/microbiologia
Antibacterianos/farmacologia
Limites: Animais
Responsável: BR1.1 - BIREME


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Id: lil-788959
Autor: Bialvaei, Abed Zahedi; Kafil, Hossein Samadi; Asgharzadeh, Mohammad; Aghazadeh, Mohammad; Yousefi, Mehdi.
Título: CTX-M extended-spectrum ß-lactamase-producing Klebsiella spp, Salmonella spp, Shigella spp and Escherichia coli isolates in Iranian hospitals
Fonte: Braz. j. microbiol;47(3):706-711, July-Sept. 2016. tab, graf.
Idioma: en.
Resumo: Abstract This study was conducted in Iran in order to assess the distribution of CTX-M type ESBLs producing Enterobacteriaceae. From January 2012 to December 2013, totally 198 E. coli, 139 Klebsiella spp, 54 Salmonella spp and 52 Shigella spp from seven hospitals of six provinces in Iran were screened for resistance to extended-spectrum cephalosporins. After identification and susceptibility testing, isolates presenting multiple-drug resistance (MDR) were evaluated for ESBL production by the disk combination method and by Etest using (cefotaxime and cefotaxime plus clavulanic acid). All isolates were also screened for bla CTX-M using conventional PCR. A total of 42.92%, 33.81%, 14.81% and 7.69% of the E. coli, Klebsiella spp, Salmonella spp and Shigella spp isolates were MDR, respectively. The presence of CTX-M enzyme among ESBL-producing isolates was 85.18%, 77.7%, 50%, and 66.7%, in E. coli, Klebsiella spp, Salmonella spp and Shigella spp respectively. The overall presence of CTX-M genes in Enterobacteriaceae was 15.4% and among the resistant isolates was 47.6%. This study indicated that resistance to β-lactams mediated by CTX-M enzymes in Iran had similar pattern as in other parts of the world. In order to control the spread of resistance, comprehensive studies and programs are needed.
Descritores: Salmonella/enzimologia
Shigella/enzimologia
beta-Lactamases/metabolismo
Infecção Hospitalar
Infecções por Enterobacteriaceae/microbiologia
Infecções por Enterobacteriaceae/epidemiologia
Escherichia coli/enzimologia
Klebsiella/enzimologia
-Salmonella/efeitos dos fármacos
Shigella/efeitos dos fármacos
beta-Lactamases/genética
Testes de Sensibilidade Microbiana
Estudos Transversais
Escherichia coli/efeitos dos fármacos
Irã (Geográfico)/epidemiologia
Klebsiella/efeitos dos fármacos
Antibacterianos/farmacologia
Limites: Seres Humanos
Responsável: BR1.1 - BIREME


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Id: biblio-1051124
Autor: Silva, Luis Francisco Borges da; Bortoluci, Fabiane; Vivan, Ana Carolina Polano.
Título: Análise microbiológica de queijos tipo minas frescal oriundos de diferentes formas de produção / Microbiological analysis of minas frescal cheese from different forms of production
Fonte: Rev. Salusvita (Online);38(2):329-343, 2019.
Idioma: pt.
Resumo: Introdução: o queijo tipo Minas Frescal, obtido através da coagulação do leite, é amplamente consumido no Brasil, e apresenta um alto teor de umidade, sendo um ótimo meio para crescimento microbiano. Por isso, para sua produção, é necessária a pasteurização do leite cru, além de boas técnicas e práticas de fabricação seguindo as normas sanitárias, evitando, assim, contaminações graves por micro-organismos causadores de doenças transmitidas por alimentos (DTAs). Objetivo: o presente trabalho teve como objetivo avaliar a qualidade microbiológica de 3 amostras de queijo Minas Frescal oriundas de diferentes processos produtivos. Materiais e métodos: os micro-organismos pesquisados foram coliformes totais e termotolerantes, S. aureus e Salmonella spp. As origens das amostras foram: industrializada, produzida em açougue de bairro em Bauru e oriunda de produção caseira/artesanal. Resultados: das 3 amostras analisadas, os resultados foram: a artesanal e a de açougue apresentaram crescimento de coliformes totais e termotolerantes acima do permitido; as 3 amostras apresentaram crescimento de colônias atípicas incontáveis nas análises de S. aureus, impossibilitando a contagem dos micro-organismos em questão; nenhuma delas apresentou crescimento de Salmonella spp. Conclusão: considerando a qualidade microbiológica, foi possível concluir que somente o queijo Minas Frescal industrializado está dentro dos padrões determinados pela ANVISA, enquanto as outras amostras apresentaram resultados insatisfatórios, o que pode comprometer a saúde do consumidor.

Introduction: Minas Frescal cheese, which is obtained through milk coagulation, is widely consumed in Brazil, and presents a high moisture content, being a great way for microbial growth. That's why, for its production, it's necessary raw milk's pasteurization, besides good manufacturing techniques and practices following sanitary standards, thus avoiding serious contaminations caused by foodborne illness. Objective: the present study had as objective to evaluate the microbiologic quality of 3 Minas Frescal cheese samples coming from different manufacturing processes. Materials and methods: the microorganisms searched were total and thermotolerants coliforms, S. aureus and Salmonella spp. The origins of the samples were: industry, butchery and homemade/craft production. Results: from the 3 analyzed samples, the results were: the craft production and butchery ones presented above the allowed growth of total and thermotolerants coliforms; the 3 samples showed uncountable atypical colonies growth in the analysis of S. aureus preventing the count of the microorganisms in question; and none of them presented Salmonella spp's growth. Conclusion: thus, considering microbiologic quality, it was possible to conclude that only the industrialized Minas Frescal chesse is within standards given by ANVISA, while the other samples presented unsatisfactory results, which can harm the consumer's health.
Descritores: Microbiologia de Alimentos
-Salmonella
Padrão de Identidade e Qualidade para Produtos e Serviços
Tipo de Publ: Estudo Comparativo
Responsável: BR36.1 - Biblioteca


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Id: biblio-869118
Autor: Weiler, Natalie; Orrego, Maria; Alvarez, Mercedes; Huber, Claudia; Ortiz, Flavia; Nuñez, Lorena; Piris, Laura; Perez, José.
Título: Primeros resultados de la vigilancia integrada de la resistencia antimicrobiana de patógenos transmitidos por alimentos, campylobacter spp y salmonella spp en tres poblaciones distintas. Paraguay. 2011-2012 / First results of the comprehensive surveillance of the antimicrobial resistance of foodborne pathogens, campylobacter spp and salmonella spp in three different populations. Paraguay, 2011-2012
Fonte: Mem. Inst. Invest. Cienc. Salud (Impr.);15(2):64-72, ago. 2017. ilus, tab.
Idioma: es.
Resumo: La infección causada por Salmonella spp. y por Campylobacter spp. son las enfermedades transmitidas por alimentos (ETA) reportadas más frecuentemente en el mundo, siendo la carne de pollo uno de los vehículos alimentarios más importantes para ambas. Se presenta los primeros resultados de la vigilancia antimicrobiana integrada de las ETA de Salmonella spp. y Campylobacter spp. en tres poblaciones. En este estudio descriptivo de corte transverso, de casos consecutivos, se recolectaron muestras de diversos orígenes de carne de pollo y distintas poblaciones para su aislamiento, caracterización y perfil de resistencia. Se observó una prevalencia de Campylobacter spp. del 13% en alimentos, 20% en muestras clínicas y 55% en heces cloacales de aves, con alta prevalencia de Campylobacter jejuni en las tres poblaciones; de Salmonella spp fue 6% en alimentos, 13% en muestras clínicas y 3% en heces cloacales de aves, con predominio del serotipo Salmonella ser. Enteritidis en las muestras clínicas y heces cloacales de aves. La resistencia a ciprofloxacina de Campylobacter spp., entre 59-81% se destacó en las tres poblaciones estudiadas. Para Salmonella spp. se observó una resistencia a nitrofurantoina del 73% en heces cloacales de aves, 55% en alimentos y 19,4% en humanos; a tetraciclina, 42% en alimentos, 5% en muestras clínicas y 9% en heces cloacales; para el ácido nalidíxico la resistencia fue del 72% en animales y 53% en muestras clínicas. Es importante fortalecer la vigilancia integrada de la resistencia antimicrobiana en estas tres poblaciones de manera a detectar en forma oportuna mecanismos de resistencia que pudieran afectar al ser humano a través de la cadena alimentaria.

Infection caused by Salmonella ssp. and Campylobacter spp. are the foodborne diseasesreported most frequently throughout the world, and chicken meat is considered one of themost important food vehicles for both. The objective was to present the first resultsobtained from the integrated antimicrobial surveillance of foodborne diseases of Salmonellaspp. and Campylobacter spp in three populations. In this descriptive cross - sectional ofconsecutive sampling, samples were collected from different sources of chicken meat and different populations for isolation, characterization and resistance profile. A prevalence of13% in food, 20% in clinical samples and 55% in cloacal feces was observed in the isolationof Campylobacter spp. with high prevalence of Campylobacter jejuni in all three populationsfollowed by 6% in food, 13% in clinical samples and 3% in birds cloacal feces of Salmonellaspp. with predominance in the isolation of the serotype Salmonella ser. Enteritidis in clinicalsample populations and birds cloacal feces. The resistance of Campylobacter spp. tociprofloxacin of 59-81%, stood out in the three populations under study, in contrast toSalmonella spp. A high resistance to nitrofurantoin of 73% was observed in poultry feces,55% in foods and 19.4% in humans. Resistance to tetracycline was found in foods (42%),5% in clinical samples and 9% in cloacal feces. A resistance of 72% was observed inanimals and 53% in clinical samples for nalidixic acid. It is important to strengthen theintegrated surveillance of antimicrobial resistance in these three populations in order totimely detect mechanisms of resistance that can affect the human being through the foodchain.
Descritores: Campylobacter
Infecções por Campylobacter
Infecções por Salmonella
Inspeção de Alimentos
Salmonella
-Saúde Pública
Limites: Seres Humanos
Responsável: PY3.1 - Biblioteca


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Id: biblio-1017967
Autor: Ichinose, Yoshio; Monges, César; Centurion, Maria Gloria; Medina, Dorita; Alborno, Rose Marie; Bestard, Juan Jaime; Sakomoto, Makoto; Moreno Azorero, Ricardo.
Título: Estudio etiológico de la diarrea bacteriana en niños en Paraguay en 1990 / An etiological study of bacterial diarrhea among infants in Paraguay in 1990.
Fonte: Asunción; EFACIM; 1991. 237-246 p. tab, graf.
Idioma: es.
Resumo: An etiological study of bacterial diarrhea in infants under five years of age in Paraguay from May to July of 1990 was done. Enteropathogenic E. coli (EPEC) strains of known serogroups were isolate from 35.8 percent of the patients with diarrhea, Salmonella spp. were isolated from 15.1 percent , enterotoxigenic E. coli (ETEC) strains were isolated from 5.7 percent, and Shigella and Campylobacter spp. were isolated. Out of 53 diarrheal patients, 34 cases (64.1 percent) had bacterial diarrheal disease. The infants under one year of age with diarrhea were predominant among impatient and outpatient children under five years of age and the total number of male diarrheal cases was greater than that of female cases. Enteropathogenic organisms were isolated from nine out of 12 water samplestaken from the Paraguay River. The major serotype (O18) of the EPEC isolated from the water samples of the Paraguay River correspond to the mayor serotype isolated from patients with diarrhea
Descritores: Campylobacter
Criança
Salmonella
Vibrio
-Paraguai
Responsável: PY2.1 - Centro de Documentación
PY3.1 SR 616.9363 An78a 1991


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Id: biblio-1017965
Autor: Medina, Dorita; Centurión, María Gloria; Monges, César; Alborno, Rose Marie; Ichinose, Yoshio.
Título: Análisis bacteriológico de agua potable de los suburbios de Asunción / Bacteriological analysis of drinking water in the suburbs of Asunción.
Fonte: Asunción; EFACIM; 1991. 252-254 p.
Idioma: es.
Resumo: A bacteriological study of drinking water in three peripheral neighborhood of Asunción was performed. the sample were taken at nine homes dwellers were asked a questionnaire. The sample were taken in sterile 1-liter bottles from: 1. Water kept in 50 lt-plastic buckests; 2. Directly from the tap. At the time of sample taking, several children have acute diarrhea, some of them with several days of duration. The sample were filtered through 0.45 mu Millipore membranes and the material retained on the filter was cultured on S.S agar medium and incubated at 37 ºc overnigth. On the other hand, 10 ml of the sample were cultured in alkaline peptone, pH 8.5, peptone broth and selenite borth and incubated at 37 ºc for 12 h. Subculture was performed in TCBS agar, EMB agar and Ss agar respectively. Biochemical characterization of the growing micoorganisms isolate were Salmonella ssp, Enterobacter ssp and Prosteus ssp. Six samples were negative for microorganisms
Descritores: Análise Bacteriológica
Enterobacter
Proteus
Salmonella
Água Potável
-Paraguai
Responsável: PY2.1 - Centro de Documentación
PY3.1 SR 616.9363 An78a 1991


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Id: biblio-1048697
Autor: Baran, Alper; Erdogan, Ahmet; Kavaz, Arzu; Adigüzel, Mehmet Cemal.
Título: Some specific microbiological parameters and prevalence of salmonella spp. in retail chicken meat from erzurum province, turkey and characterization of antibiotic resistance of isolates / Alguns parâmetros microbiológicos específicos e prevalência de SalmonellA spp. cortes de carne de frango da província de Erzurum, Turquia e caracterização da resistência aos antibióticos de isolados
Fonte: Biosci. j. (Online);35(3):878-891, may./jun. 2019. tab, ilus.
Idioma: en.
Resumo: Specific microbiological parameters and the presence of Salmonella spp. were investigated in 72 chicken meat samples (36 wings and 36 drumsticks) collected from markets and butcher shops. The specific microbiological parameters were determined using a conventional cultural method and the presence of Salmonella spp. in chicken samples was determined using conventional and immunomagnetic separation (IMS)-polymerase chain reaction (PCR) methods. In addition, antimicrobial susceptibility of the isolates was revealed using the Kirby-Bauer disc diffusion method. The results indicated that 30 of the 72 samples were positive for Salmonella spp. by the conventional method, and 42 of the 72 were positive by the IMS-PCR method. However, 30 of the 72 samples were positive for Salmonella spp. by both methods. The Salmonella spp. isolates were confirmed by the VITEK2 Compact System and PCR. The susceptibilities of the isolates against 10 antibiotics were determined. The results indicated that isolates (27/30) showed the highest susceptibility to gentamycin (90.00%), while the highest resistance was to nalidixic acid and tetracycline at the 100 and 93.34% levels, respectively. These results indicate a high prevalence of Salmonella spp. in poultry meat from Erzurum city, Turkey, and the antimicrobial resistance profile of these isolates should be considered for public health. The results also show that the IMS-PCR technique was superior to the conventional method for detecting Salmonella in poultry meat.KEYWORDS:Chicken meat. Salmonella. IMS. PCR. Antimicrobial. INTRODUCTION Chicken is one of the most popular food products worldwide, because of nutritional, sensorial and economic factors. Chicken is widely consumed in homes and fast-food establishments, but can become contaminated during processing. The contamination of poultry products with Salmonella and other microorganismsis due to unhygienic conditions during the production, processing, distribution, marketing and preparationstages (DOOKERAN et al., 2012). The genus Salmonella includes short rod-shaped, facultative anaerobe, Gram-negative bacteria. Warm-blooded animals and humans are natural hosts for Salmonella spp. Detecting Salmonella spp. during production and before consumption is important to prevent food-borne salmonellosis. A Salmonella infection in humans is usually caused by consuming undercooked meat or other cross-contaminated foods, such as vegetables,milk and eggs (HASSANEIN et al., 2011). According to a report published by the Centres for Disease Control and Prevention (CDC), it is estimated that about 1.2 million people in the US have been exposed to Salmonella infections, and that an average of 23.000 hospitalisations and 450 deaths occur from these infections. The prevalence rates of Salmonella spp. in chicken meat sold in Turkey are 34-68.75%. Not only in Turkey, but in most developing countries, the absence of an epidemiological surveillance system for salmonellosis cases makes it difficult to effectively assess prevalence (KÄFERSTEIN, 2003). However, Received: 09/05/18 Accepted: 05/12/18

Parâmetros microbiológicos específicos e a presença de Salmonella spp. foram investigados em 72 amostras de carne de frango (36 asas e 36 baquetas) coletadas em mercados e açougues. Os parâmetros microbiológicos específicos foram determinados utilizando um método cultural convencional e a presença de Salmonella spp. em amostras de frango foi determinada utilizando métodos de reação em cadeia da polimerase (PCR) por separação convencional e imunomagnética (IMS). Além disso, a suscetibilidade antimicrobiana dos isolados foi revelada pelo método de difusão do disco de Kirby-Bauer. Os resultadosindicaram que 30 das 72 amostras foram positivas para Salmonella spp. pelo método convencional, e 42 das 72 foram positivas pelo método IMS-PCR. No entanto, 30 das 72 amostras foram positivas para Salmonella spp. por ambos os métodos. Os isolados de Salmonella spp. foram confirmados pelo sistema VITEK2 Compact e PCR. As susceptibilidades dos isolados a 10 antibióticos foram determinadas. Os resultados indicaram que os isolados (27/30) apresentaram maior suscetibilidade à gentamicina (90,00%), enquanto a maior resistência foi ao ácido nalidíxico e à tetraciclina nos níveis de 100 e 93,34%, respectivamente. Estes resultados indicam uma alta prevalência de Salmonella spp. em carne de frango da cidade de Erzurum, Turquia, e o perfil de resistência antimicrobiana desses isolados deve ser considerado para a saúde pública. Os resultados também demonstram que a técnica de IMS-PCR foi superior ao método convencional para detecção de Salmonella em carne de frango.
Descritores: Salmonella
Galinhas
Fenômenos Microbiológicos
Anti-Infecciosos
Responsável: BR396.1 - Biblioteca Central


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Id: biblio-1048585
Autor: Qureshi, Asma Waheed; Khan, Zaib- Ullah; Khan, Luqman; Mansoor, Abu; Minhas, Rashid.
Título: Prevalence of malaria, typhoid and co-infection in District DIR (lower), Pakistan / Prevalência de malária, febre tifóide e co-infecção no distrito dir (inferior), Paquistão
Fonte: Biosci. j. (Online);35(1):317-325, jan./fev. 2019. ilus, tab.
Idioma: en.
Resumo: Malaria and typhoid fever are among the most endemic diseases in the tropical and developing countries. Both diseases share similar transmission factor and often have the similar symptom. Based on this reason, much medical personnel try to cure both malaria and typhoid instantaneously in each case of suspected Salmonella infection and vice versa. The District Dir (Lower) is a favorable location for the protozoan nourishment and secondly mostly reported cases of malaria and typhoid co-infections. The main objective of this study was to find out the prevalence of malaria and typhoid co-infection in the District Dir (Lower), Khyber Pakhtunkhwa (KPK), Pakistan. The blood samples of 1889 patients were examined from September 2012 to April 2013, out of which 311 (16.46%) were positive for malaria and typhoid. Out of these infected, 117 (38%) sample was positive for malaria, 183 (58%) sample were positive for typhoid while co-infected cases were only 11 (4%). The current results indicate that this area is endemic for malaria and typhoid and co-infection. Its infection is prevalent in both the genders at varying degrees.

A malária e a febre tifóide estão entre as doenças mais endêmicas nos países tropicais e em desenvolvimento. Ambas as doenças compartilham fator de transmissão semelhante e muitas vezes têm sintomas semelhantes. Com base nessa razão, muitos profissionais da saúde tentam curar a malária e a febre tifóide ao mesmo tempo em cada caso de suspeita de infecção por Salmonella e vice-versa. O Distrito Dir (inferior) é um local favorável para a nutrição de protozoários e o segundo local com mais casos reportados de malária e co-infecções tifoides. O principal objetivo deste estudo foi descobrir a prevalência da malária e da co-infecção tifóide nos distritos de Dir (Lower), Khyber Pakhtunkhwa (KPK), Paquistão. As amostras de sangue de 1889 pacientes foram examinadas de setembro de 2012 a abril de 2013, das quais 311 (16,46%) foram positivas para malária e febre tifóide. Destes infectados, 117 (38%) amostras foram positivas para a malária, 183 (58%) amostras foram positivas para a febre tifóide, enquanto os casos co-infectados foram apenas 11 (4%). Os resultados atuais indicam que esta área é endêmica para malária e febre tifóide e co-infecção. Sua infecção é prevalente em ambos os sexos em diferentes graus.
Descritores: Salmonella
Medicina Tropical
Febre Tifoide
Malária
-Saneamento Básico
Responsável: BR396.1 - Biblioteca Central


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Id: biblio-1024598
Autor: Werlang, Gabriela Orosco; Haubert, Louise; Peter, Cristina Mendes; Cardoso, Marisa.
Título: Isolation of Salmonella Typhimurium, Listeria monocytogenes and coagulase-positive Staphylococcus from salami sold at street fairs in Porto Alegre, Brazil / Isolamento de Salmonella Typhimurium, Listeria monocytogenes e Staphylococcus coagulase positiva de salames comercializados em feiras livres de Porto Alegre, Brasil
Fonte: Arq. Inst. Biol;86:e0072019, 2019. tab.
Idioma: en.
Projeto: Coordination of Improvement of Higher Education Personnel.
Resumo: Salami is a ready-to-eat (RTE) product frequently purchased at street fairs in Porto Alegre. Salmonella enterica, Listeria monocytogenes, and coagulase-positive Staphylococcus (CPS) are important causes of foodborne disease and can be transmitted through the consumption of RTE foods. The aim of this study was to evaluate the presence of these pathogens in salami sold at street fairs. Ninety salami samples from three commercial brands available at street fairs were analyzed by routine bacteriological methods for Salmonella spp. and Listeria spp., as well as enumeration of CPS. In addition, two samples from each commercial brand were analyzed for water activity (aw). Samples of brand A showed aw values (0.938 and 0.942) above those set by the legislation, while brand B (0.849 and 0.860) and brand C (0.826 and 0.854) were compliant. Microbiological analyses showed that 67.7% were negative to all investigated bacteria. Salmonella Typhimurium was isolated from 4.4% (4/90) of salami samples, all from commercial brand A. ­Listeria monocytogenes was detected in 3.3% (3/90) of samples, from commercial brands B and C. Moreover, 7.7% (7/90) of samples contained CPS populations non-compliant with legislation. Although the great majority of salami sold at street fairs of Porto Alegre was compliant with standards, S. enterica, L. monocytogenes, and CPS ≥ 5 × 103 cfu.g-1 could be found in this RTE product. Therefore, control measures in the processing industry and consumer's education about foodborne illness prevention should be maintained.(AU)

Salame é um alimento pronto para o consumo frequentemente adquirido pela população em feiras livres de Porto Alegre. Salmonella enterica, Listeria monocytogenes e Staphylococcus coagulase positiva são importantes causas de doenças transmitidas por alimentos e podem ser veiculadas por alimentos prontos para o consumo. O objetivo desse estudo foi avaliar a presença desses patógenos em salames vendidos em feiras livres. Noventa amostras de salame pertencentes a três marcas comerciais foram analisados por métodos bacteriológicos de rotina quanto à presença de Salmonella spp. e Listeria spp., bem como enumeração de Staphylococcus coagulase positiva (SCP). Além disso, foi determinada a Atividade de Água (aw) de duas amostras de cada marca comercial. Amostras da marca A apresentaram valores de aw (0,938 e 0,942) acima do permitido na legislação, enquanto as amostras da marca B (0,849 e 0,860) e C (0,826 e 0,854) não violaram esse parâmetro. A análise microbiológica demonstrou que 67,7% das amostras foram negativas para todas as bactérias investigadas. Salmonella Typhimurium foi isolada de 4,4% (4/90) das amostras de salame, todas da marca comercial A. Listeria monocytogenes foi detectada em 3,3% (3/90) das amostras das marcas B e C. Além disso, 7,7% (7/90) das amostras apresentaram SCP acima do número permitido pela legislação. Apesar da grande maioria dos salames comercializados em feiras livres estarem de acordo com a legislação, S. enterica, L. monocytogenes e SCP ≥ 5 × 103 cfu.g-1 podem estar presentes nesse alimento pronto para o consumo. Dessa forma, o controle nas indústrias e a educação dos consumidores sobre a prevenção de doenças transmitidas por alimentos devem ser mantidos.(AU)
Descritores: Salmonella/patogenicidade
Staphylococcus/patogenicidade
Suínos
Listeria/patogenicidade
-Bactérias
Análise Microbiológica/métodos
Indústria Alimentícia
Normas de Qualidade de Alimentos
Carne
Responsável: BR1942.1 - NID - Biblioteca - Núcleo de Informação e Documentação



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