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Reza Ranjbar, Reza
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Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Contact with poultry and animals increases risk of Campylobacter infections in adults of Ardabil province, Iran Ranjbar, Reza; Babazadeh, Daryoush
Universa Medicina Vol 36, No 1 (2017)
Publisher : Faculty of Medicine, Trisakti University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2017.v36.59-67

Abstract

BackgroundThe acute gastroenteritis caused by campylobacteriosis is known as one of the common infectious diseases with worldwide distribution. The aim of this study was to detect Campylobacter species in stool samples by routine culturing and polymerase chain reaction (PCR) and explore the risk factors in adult subjects in East Azerbaijan province of Iran.MethodsA cross sectional study involving 1010 adult subjects, from whom stool samples were collected. Samples with inflammatory criteria like fecal leukocytes (WBC ³5) were selected and isolated through fecal lactoferrin detection test. The WBC ³5 and lactoferrin positive samples were selected for Campylobacter detection by culture and PCR methods. The required information consisting of gender, age, place of habitation, and contact with poultry and animals were asked and recorded. Chi-square test and prevalence ratio (PR) was used to analyze the data.ResultsOf 1010 stool samples, 231 (22.9 %) had WBC ³5, and from these samples 58 (25.1%) were positive by culturing and 61 (26.4 %) by PCR. Subjects having habitual contact with animals and poultry had increased risk of Campylobacter infections by 1.65 times compared with subjects without contact with animals and poultry (PR=1.65; 95% CI:1.07-2.68).ConclusionsDetection of Campylobacter infections by PCR was more sensitive in adults. Investigation of Campylobacter prevalence in Ardabil showed this bacterium should be viewed as one of the possible pathogens in inflammatory diarrheal cases. People having habitual contact with animals should check the health of the animals regularly and not consume food from suspected sources. 
Antibiotic resistance and prevalence of class 1 and 2 integrons in Escherichia coli isolated from hospital wastewater Ranjbar, Reza; Zeynali, Maryam; Sohrabi, Nooshin; Kamboh, Asghar Ali; Moshaveri, Arman
Universa Medicina Vol 37, No 3 (2018)
Publisher : Faculty of Medicine, Trisakti University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (807.338 KB) | DOI: 10.18051/UnivMed.2018.v37.209-215

Abstract

BACKGROUND Hospital wastewaters may contain antibiotic resistant bacteria such as Escherichia coli. These E. coli harbor integron genes that are responsible for antibiotic resistance. The purpose of the current study was to evaluate the frequency of class 1 and 2 integrons in environmental antibiotic resistant E. coli strains isolated from the hospital wastewaters in Tehran, Iran.METHODSAs a descriptive cross-sectional study, this research was performed from April to September 2015 on hospital wastewaters in Tehran. Bacterial isolation and identification was performed by standard biochemical and bacteriological procedures. Susceptibility testing was done by employing the disk diffusion method using different antibiotics. Total DNAs were extracted to evaluate the presence of class 1 and 2 integrons by using the polymerase chain reaction (PCR) method with specific primers. RESULTSFifty E. coli strains were isolated and identified from the wastewaters of 25 hospitals in Tehran. The phenotype results showed that 46 isolates (92%) were resistant to at least one antibiotic and 27 isolates (54%) were multidrug resistant. PCR showed that 35 (70%) and 20 (40%) of the isolates had class 1 and 2 integrons respectively and 14 isolates (28%) had both class 1 and class 2 integrons.CONCLUSIONThis study has shown a considerable presence of class 1 and class 2 integrons in E. coli strains isolated from hospital wastewaters in Tehran. Proper antibiotics prescription and appropriate hospital wastewater treatment can prevent resistance genes in E. coli from circulating in the environment.
Co-Authors Daryoush Babazadeh, Daryoush Kamboh, Asghar Ali Moshaveri, Arman Sohrabi, Nooshin Zeynali, Maryam