RESUMO
Household water in Oman, as well as in other countries in the region, is stored in tanks placed on house roofs that can be subjected to physicochemical factors which can promote microbial growth, including pathogens and opportunistic pathogens which pose health risks. Water samples were collected from 30 houses in a heavily populated suburb of Muscat. The tanks used were either glass reinforced plastic (GRP), polyethylene or galvanised iron (GI). Heterotrophic bacteria, coliforms, faecal coliforms and iron sulphur bacteria varied significantly in the three tanks. Yeast and mould count showed significant variations. Isolation of Aeromonas spp., fluorogenic and pathogenic Pseudomonas, Pasteurella, Salmonella, Serratia and Tatumella, and Yersinia and Legionella in biofilms varied in the three tanks. The fungi isolates in the three tanks were Penicillium, Cladosporium and Aspergillus. Nephelometric turbidity unit, threshold odour number and free chlorine varied significantly in the three tanks. True colour unit values did not show a significant difference; however, GRP tanks had algae, autotrophic and pigmented microorganisms. In addition, GI tanks had sediments and corrosion. The results of this investigation are important to evaluate the status of the present household water tanks in countries with high annual temperatures, which may affect public health.
Assuntos
Água Doce/microbiologia , Produtos Domésticos , Infecções Oportunistas/microbiologia , Microbiologia da Água , Abastecimento de Água/análise , Biofilmes , Desinfecção , Contaminação de Equipamentos , Humanos , Omã , Medição de Risco , Inquéritos e QuestionáriosRESUMO
We investigated the antibiotic resistance of various strains of Salmonella isolated from different sources in Oman, namely sewage water, chicken and food handlers. Of 1242 isolates from food handlers, 15 (1.2%) were resistant to one or more antibiotic. Of these, 41% were resistant to ampicillin, 42% to co-trimoxazole and 22% to chloramphenicol. None of the isolates was resistant to ciprofloxacin. Of 515 isolates from chicken and 432 from sewage water, 23.7% and 14.1% respectively were resistant to one or more antibiotic. Susceptibility to the different antibiotics varied but none of the isolates from chicken was resistant to amikacin.
Assuntos
Galinhas , Manipulação de Alimentos/estatística & dados numéricos , Doenças das Aves Domésticas/epidemiologia , Salmonelose Animal/epidemiologia , Infecções por Salmonella/epidemiologia , Esgotos/microbiologia , Animais , Farmacorresistência Bacteriana , Uso de Medicamentos , Fezes/microbiologia , Microbiologia de Alimentos , Alimentos Congelados/microbiologia , Educação em Saúde , Necessidades e Demandas de Serviços de Saúde , Humanos , Testes de Sensibilidade Microbiana , Omã/epidemiologia , Vigilância da População , Doenças das Aves Domésticas/microbiologia , Doenças das Aves Domésticas/prevenção & controle , Guias de Prática Clínica como Assunto , Infecções por Salmonella/microbiologia , Infecções por Salmonella/prevenção & controle , Salmonelose Animal/microbiologia , Salmonelose Animal/prevenção & controleRESUMO
We investigated the antibiotic resistance of various strains of Salmonella isolated from different sources in Oman, namely sewage water, chicken and food handlers. Of 1242 isolates from food handlers, 15 [1.2%] were resistant to one or more antibiotic. Of these, 41% were resistant to ampicillin, 42% to co-trimoxazole and 22% to chloramphenicol. None of the isolates was resistant to ciprofloxacin. Of 515 isolates from chicken and 432 from sewage water, 23.7% and 14.1% respectively were resistant to one or more antibiotic. Susceptibility to the different antibiotics varied but none of the isolates from chicken was resistant to amikacin
