Showing 4 results for Cholera
B Eshrati, A Rezaei Ashtiani , F Khazaei, F Torkamani, M Azimi,
Volume 3, Issue 1 (9-2007)
Abstract
Background & Objectives: The summer of 2005 witnessed an outbreak of cholera in Iran due to V. cholera, Inaba serotype. During the outbreak, there were 16 registered cases in Markazi Province. The aim of this study was to determine the risk factors for cholera outbreak in this part of the country.
Methods: This was a case-control study in which cases were matched to controls on age and sex. All of the reported cases were compared with controls from the same neighborhood, with 2 controls selected for each case. We used paired odds ratios and conditional logistic regression to show the effect of each putative risk factor, and p values of < 0.05 were considered as statistically significant.
Results: Multivariate results from 16 cases and 32 controls showed significant associations between the cholera outbreak and the following set of factors: eating raw vegetable (OR=9, 95%CI: 2.25-35.98), proper warming of refrigerated food (OR=0.12, 95%CI: 0.015-1.022), inadequate washing of fruits and vegetables (OR=4.29, 95% CI: 0.88-21.06) , and eating non-pasteurized ice creams (OR=4.96, 95%CI: 0.99-24.83).
Conclusions: Although the number of reported cases was small in Markazi Province, the results show that education in personal hygiene is important in the prevention of a cholera outbreak.
Ha Barati, A Golmohmmadi, I Momeni, G Mpradi,
Volume 6, Issue 3 (12-2010)
Abstract
Background & objectives: However outbreaks of cholera are not very common in central area of Iran, in 2008 district health authority reported a cluster of diarrhea cases. We investigated this cluster to identify the etiological agent, source of transmission and propose control measures.
Methods: We defined a case of diarrhea as occurrence of > or =3 loose/watery stools a day among the residents of Karaj. Fifty four (54) cases were identified in health care centers and 106 healthy individuals as control. We conducted a gender- and age-matched case-control study to identify risk factors.
Results: Vibrio cholerae El Tor O1 Inaba was isolated from all cases rectal swabs. during cholera epidemic outbreak in 2007, 54 cases of stool-culture were vibrio cholera, serotype Inaba positive. Using industrial-ice and fruits and vegetables were significantly associated with the illness (OR 4.4 and 3.3 respectively).
Conclusions: This outbreak was due to a contaminated industrial-ice and contaminated vegetables and fruits and V. cholera 01 Inaba was possibly the causative organism. Therefore more prevention program and observation methods should be considered.
N Mohammadsalehi, K Holakouie Naieni , B Eshrati, A Mohammadbeigi, E Ahmadnezhad, Sh Arsangjang,
Volume 14, Issue 1 (6-2018)
Abstract
Background and Objectives: Cholera is one of the public health ththat has received attention due to climate change and weather variables. In the current study, the trend of cholera and its epidemics was assessed in the last 50 years in Iran based on climatic variables.
Methods: In a retrospective cohort study, all cholera cases and epidemics of the disease in the country (Iran) were assessed using the registry system of the Center for Communicable Disease Control in the Ministry of Health and Medical education (MOH&ME) from 1964 to 2014. Furthermore, the incidence of cholera was evaluated in 2005-2014 by province. The temperature and rainfall data were obtained from the provincial Meteorological Organization. The correlation coefficient test and mixed-effects binomial regression model were used for data analysis.
Results: A significant positive correlation was found between cholera and rainfall (r = 0.168, P = 0.008). A one-millimeter increase in rainfall increased the incidence of cholera by 10.9% but temperature changes had no effect on cholera outbreaks. The incidence of cholera declined significantly by 14.7% each year from 2005 to 2014. The highest incidence of cholera was reported in Sistan-Baluchestan, Qom, Tehran, Kerman and Hormozgan provinces in a descending order.
Conclusion: In recent years, the the overall incidence of cholera has decreased. The occurrence of cholera is an outcome of rainfall in the previous year. Therefore, increased rainfall increases the number of cholera cases in the next year. However, temperature changes are not related to cholera outbreaks.
M Karami Jooshin , H Izanloo, A Saghafipour, F Rezaei, M Asadi Ghalhari ,
Volume 14, Issue 4 (3-2019)
Abstract
Background and Objectives: Cholera is one of the communicable diseases that should be reported immediately as a public health threat. This study was conducted to study the probable risk factors of cholera outbreak in Qom, central Iran, during 2017.
Methods: In a case-control study, 37 cholera patients diagnosed based on para - clinical tests and 37 control samples were evaluated. Charts, frequency tables, regression logistic, Chi-square and t-test in SPSS software ver.25 were used for data analysis.
Results: The causative agent in the Qom cholera outbreak was Vibrio cholerae serotype Inaba. Most of the patients (54%) were in the age range 21-40 years. Most of the cholera cases were males (87%), Iranians (81%), and school or college students (30%). The peak of the epidemic occurred in the third week of November 2017, coinciding with a religious event. Nearly half of the patients were identified at the cross-border surveillance centers. The most important risk factors for the outbreak were a history of travel to Iraq in order to attend the Arbaeen religious event (95%), (OR=75, P-value<0.001), and a history of consuming unreliable foods and water (94% and 50%, (OR=66, CI=8-410, P-value=0.00 and OR=11, CI=2.7-46)), respectively.
Conclusion: Cross-border surveillance of cholera in common borders with Iraq, especially in the Arbaeen religious event, played a vital role in identifying patients suspected of cholera. The surveillance of communicable diseases should be strengthened when entering and leaving the Arbaeen event.
