عوامل موثر بر طغيان ويبريوي ناگ NAG (Non Agglutinating Groups) استان قم، سال 1390

Non-Agglutinating Groups Vibrio Outbreak in Qom Province in 2011

Abstract Background and Objectives: Vibrio Cholera outbreaks have constantly been a worldwide health report in recent years and always have posed major threats to public’s health. In present study, we aimed to identify the routes of cholera distribution and its determinants which might help to spread of cholera outbreak in Qom Province in 2011. Materials and methods: In a case-control study 100 qualified cases (Our criterion to enter a cholera positive case into study was to be staying in Qom province 5 days before onset of clinical symptoms) from total 100 positive cases and 100 control cases who were pair matched (in terms of age, gender and district of residence) with positive cases were entered into the study. Frequency tabulations were used to conduct descriptive analyses. Conditional logistic regression was used to identify outbreak determinants. Results: Mean and standard deviation of age variable among cases and controls were 34+- 16 and 35+-6 respectively. Fifty-eight percent of cases in case group and 55% of cases in control group were men. Regarding occupational status, 30% and 31.5% of subjects among cases and controls were housekeepers respectively. Mean and standard deviation of household size for cases and controls was 5+-1.6 and 3+-1.5 respectively. Consumption of non-disinfected vegetables AOR=3.5 (1.9-6.5) was the main reason of Vibrio distribution among the population. There was no significant relationship between cholera morbidity and consumption of ice-cream, home-made fruit juice, cubic ice (produced in ice factories) and water that is sold by water tankers and shops. Conclusions: As with past years, consumption of non-disinfected vegetables is keeping a high risk for cholera outbreak and, consequently, much more attempts are needed to solve this problem.