Abstract：
BACKGROUND:This study investigated the interaction between heterotrophic bacteria and coliform, fecal coliforms, fecal streptococci bacteria in water supply networks. METHODS:This study was conducted during 2013 on water supply distribution network in Aq Qala City, Golestan Province, Northern Iran and standard methods were applied for microbiological analysis. The surface method was applied to test the heterotrophic bacteria and MPN method was used for coliform, fecal coliform and fecal streptococci bacteria measurements. RESULTS:In 114 samples, heterotrophic bacteria count were over 500 CFU/ml, which the amount of fecal coliform, coliform, and fecal streptococci were 8, 32, and 20 CFU/100 ml, respectively. However, in the other 242 samples, with heterotrophic bacteria count being less than 500 CFU/ml, the amount of fecal coliform, coliform, and fecal streptococci was 7, 23, and 11 CFU/100ml, respectively. The relationship between heterotrophic bacteria, coliforms and fecal streptococci was highly significant (P<0.05). We observed the concentration of coliforms, fecal streptococci bacteria being high, whenever the concentration of heterotrophic bacteria in the water network systems was high. CONCLUSION:Interaction between heterotrophic bacteria and coliform, fecal coliforms, fecal streptococci bacteria in the Aq Qala City water supply networks was not notable. It can be due to high concentrations of organic carbon, bio-films and nutrients, which are necessary for growth, and survival of all microorganisms.
journal_name
Iran J Public Healthjournal_title
Iranian journal of public healthauthors
Amanidaz N,Zafarzadeh A,Mahvi AHsubject
Has Abstractpub_date
2015-12-01 00:00:00pages
1685-92issue
12eissn
2251-6085issn
2251-6093journal_volume
44pub_type
杂志文章abstract：Background:Vitamin D might be promising to serve as an adjunctive therapy for pulmonary tuberculosis (TB). However, the results remained controversial. We conducted a systematic review and meta-analysis to evaluate the efficacy and safety of vitamin D in patients with pulmonary TB. Methods:Medline, SCOPUS, Google Scho...
journal_title：Iranian journal of public health
pub_type： 杂志文章,评审
doi：
更新日期：2018-04-01 00:00:00
abstract：Background:This study investigated how experiencing school violence affects depression and suicidal ideation in multicultural adolescents. Methods:Overall, 63444 adolescents from grades 7-12 (ages 12-18 yr) who participated in the 11th Korea Youth Risk Behavior Web-based Survey (KYRBS-XI) were enrolled from Jun 1 to J...
journal_title：Iranian journal of public health
pub_type： 杂志文章
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更新日期：2019-02-01 00:00:00
abstract：Background:As dyslipidemia is a preventable risk factor for Coronary heart disease (CHD), precise estimation of its prevalence and determinants is crucial for proper development of health actions. This population-based study aimed at investigating the socioeconomic, dietary and psychological determinants of dyslipidemi...
journal_title：Iranian journal of public health
pub_type： 杂志文章
doi：
更新日期：2019-05-01 00:00:00
abstract：BACKGROUND:The purpose of the present study was to evaluate the inequality of geographical distribution of non-cardiac intensive care beds in Iran using the Gini coefficient. METHODS:The population information of Iran's provinces in 2006 was obtained from The Statistical Center of Iran and the number of non-cardiac in...
journal_title：Iranian journal of public health
pub_type： 杂志文章
doi：
更新日期：2011-01-01 00:00:00
abstract：:First Millennium Development Goal states the target of "Halving hunger by 2015". Sadly, the recent statistics for India present a very gloomy picture. India currently has the largest number of undernourished people in the world and this is in spite of the fact that it has made substantial progress in health determinan...
journal_title：Iranian journal of public health
pub_type： 杂志文章
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更新日期：2011-12-01 00:00:00
abstract：BACKGROUND:Based on the current emphasis on competency-based education, as a part of need assessment phase of dental curriculum revision in Iran, in the present study the dental graduates' perspective concerning the minimum competency requirements for an Iranian general dentist has been investigated. METHODS:Based on ...
journal_title：Iranian journal of public health
pub_type： 杂志文章
doi：
更新日期：2013-01-01 00:00:00
abstract：BACKGROUND:The purpose of this study was to analyse the prevalence of postmenopausal osteoporosis risk factors and to analyse the T-score variability in spine and hip according to the associated risk factors. METHODS:This is a retrospective study (2003-2007) including 177 female patients with postmenopausal osteoporos...
journal_title：Iranian journal of public health
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journal_title：Iranian journal of public health
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journal_title：Iranian journal of public health
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journal_title：Iranian journal of public health
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journal_title：Iranian journal of public health
pub_type： 杂志文章
doi：
更新日期：2016-06-01 00:00:00
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journal_title：Iranian journal of public health
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更新日期：2018-10-01 00:00:00
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journal_title：Iranian journal of public health
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doi：
更新日期：2012-01-01 00:00:00
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journal_title：Iranian journal of public health
pub_type： 杂志文章
doi：
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journal_title：Iranian journal of public health
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doi：
更新日期：2013-01-01 00:00:00
abstract：BACKGROUND:Chinese medical workers suffer from a high incidence of mental health problems, resulting in reduced efficiency, increased medical malpractice, rising medical costs, and other issues. The effective alleviation of mental health problems among medical workers is therefore an important focus of research and soc...
journal_title：Iranian journal of public health
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doi：
更新日期：2017-06-01 00:00:00
abstract：BACKGROUND:Onychomycosis is a nail disorder associated with aesthetic problems, discomfort, physical injury and loss of dexterity. The purpose of the present study was to isolate and identify the causative fungi of onychomycosis in 2402 patients in Kermanshah Province, western Iran in 1994 to 2010. METHODS:Mycologic a...
journal_title：Iranian journal of public health
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doi：
更新日期：2013-03-01 00:00:00
abstract：Background:Air pollution have led to severe problem of adverse health effect in the world. This study aimed to conduct the health risk assessment, cancer risk analysis, and non-cancer risk for exposure to volatile organic compounds (VOCs) and hydrogen sulfide (H 2 S) in petrochemical industry. Methods:In this cross-se...
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doi：10.18502/ijph.v49i7.3587
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journal_title：Iranian journal of public health
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journal_title：Iranian journal of public health
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更新日期：2017-09-01 00:00:00
abstract：BACKGROUND:Urogenital mycoplasmas are potentially pathogenic species causing genitourinary tract infections that may be initially asymptomatic but can progress and lead to severe complications and threaten reproductive health. However, the overall prevalence rate of this bacterium and its probable impacts on fertility ...
journal_title：Iranian journal of public health
pub_type： 杂志文章,评审
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journal_title：Iranian journal of public health
pub_type： 杂志文章
doi：
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journal_title：Iranian journal of public health
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doi：
更新日期：2010-01-01 00:00:00
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journal_title：Iranian journal of public health
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doi：
更新日期：2017-02-01 00:00:00
abstract：BACKGROUND:According to importance of cirrhosis of the liver and the lack of information about the economic burden of the disease, we performed this study to estimate the economic burden of liver Cirrhosis in Iran in 2011. METHODS:The cost-of-illness method, based on the human capital theory, has been used. Both direc...
journal_title：Iranian journal of public health
pub_type： 杂志文章
doi：
更新日期：2015-04-01 00:00:00
