Fatemeh Jafari; Farzad Motevali Haghi; Masoumeh Eslamifar; Mahmoud Fazeli Dinan; Ali Jafari
Abstract
Abstract Background and Aim: House flies are able to transmit pathogenic organisms from infected materials to human. The role of the flies in the transmission of many diseases has been demonstrated. This study was conducted to determine the bacterial contamination of M.domestica flies in various sources ...
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Abstract Background and Aim: House flies are able to transmit pathogenic organisms from infected materials to human. The role of the flies in the transmission of many diseases has been demonstrated. This study was conducted to determine the bacterial contamination of M.domestica flies in various sources of Joybar city. Materials and Methods: A total of 384 household flies were collected from five sources including urban and rural solid wastes, hospital campus, coastal areas and slaughterhouses. Samples were transferred to the microbiology laboratory of the school of public health in some sterilized glass containers, and standard tests were carried out to isolate and identify bacterial species. Results: Escherichia coli was the dominant species in the samples. From all of the samples, 46% E.coli, 19% Staphylococcus aureus, 9.98% Staphylococcus epidermidis and 16.66% Enterobacter Aerogenus were isolated. Conclusion: The results of this study confirmed that the presence of these insects in the public places and different parts of the environment is regarded as a disturbing agent, and vector of pathogens. Since public spaces should not be a source of contamination, the implementation of the sanitation programs and control of these insects seems to be so necessary to create a safe and healthy environment.
Mounes Asadi Shavaki; Elaheh Mahmoodi; Negin Valaei
Abstract
Background and objective: Swimming pools being some of the popular sport centers are able to potentially receive some pollutants such as nasal secretions, saliva and urine and endanger the health of swimmers. The aim of this study was to determine the bacterial and fungal pollution of swimming pools ...
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Background and objective: Swimming pools being some of the popular sport centers are able to potentially receive some pollutants such as nasal secretions, saliva and urine and endanger the health of swimmers. The aim of this study was to determine the bacterial and fungal pollution of swimming pools in Karajcity and effect of some environmental factors on it. Materials and Method: In this study, 7 pools and 103 samples including water and environmental surfaces were evaluated with standard methods. Residual chlorine, pH, number of swimmers and temperatur were studied. SPSS statistical software (version 19) was used for data analysis and the P-value was ≤ 0.05. Results: research showed that the average of PH and residual chlorine was 7/5 & 2/20 ppm, correspondingly. 24/27% of samples were positive for one or more fungal contamination. Aspergillus spp were 65/71%, Candida spp 20%, Rodotrolla spp 2/86%, other filamentous fungi 8/57% and other yeast species 2/86%.MPN test in 93/4% and HPC test in 84/6% were in the standard range. Results of tests with carpet samples showed the highest contamination was in dressing room. statistical analysis indicated that there is a direct relationship between decrease of residual chlorine, increase of number of swimmers with increaseof contamination. Conclusion: Test results indicate the presence of bacterial and fungal contamination in water and equipment pools. It is proffered to use the filtration and chlorination systems and teaching people about compliance hygiene.