مجله طب پیشگیری
پیاپی 2 (زمستان 1393)

malaria is an infectious disease which infected 200-300million people anually. Environmental factors such as percipitation, temperature, and humidity effect it's geografical distrbution and prevalence. In addition, environmental factors effects the abundance and activity of malaria vectors.the aim of the study was finding the relationship between climate and malaria prevalence in araudan county. to conduct this analytical- discriptive study,nine year climatology data frome 2003 to 2011were obtained from Rudan synoptic station and the number of malaria infection cases were taken from Rudan health center.Spss ver. 19, Exell softwares and Person corelation test were used for data analysis. this study showed Rudan county as a malaria foci with 396 cases of malariainfection and malaria prevalence in this study was 3.7 in 1000 population. this study showed a significant negative correlation between malaria prevalence and the mean of percipitation and mean of relative humidity. In addition the results showed a significant and positive corellation between malaria prevalenceand the mean of minimum temperature and the mean of maximum temperature.

The inactive of life style in present society to reveal of necessity of doing activity interference for increase of physical activity for prevent of illness and to found active life style in primitive teen's days. The intention of this study was effectiveness of educational intervention based on TTM model about regular physical activity among high school girl student. In this interventional study about 300 person of high school girl student in first until third section in several stage cluster sampling method in six high school and they divided in tow group of case and noticing. Collected relating data by using of interrogations of physical activity scale، exercise benefits/barriers scale and exercise self efficacy and analyzed by using of SPSS 19 transcription. Resalts: this study showed that wasn’t before of education meaning statistical difference between studies group about stage of change، benefits and barriers and self efficacy but the educational after carreing of educational interference to benefit of positive and meaning advance in stage of change (P<0/05). The grade average of exercise benefits and barriers scale and self efficacy has meaning advanced after carreing of educational (P<0/05). The education based on TTM has the positive effect on student physical activity، so suggest using of behavior change models in health programs.

iron deficiency anemia (IDA) is a main global concern. In developing countries, it is considered as the most prevalent nutritional problem among infants and children. The present research sought to investigate the awareness and performance of mothers who had 6-24 month old infants in the consumption of iron supplementation. the present research is a descriptive/analytical cross sectional study in which 600 children who were 6 to 24 months old participated in Bandar Abbas. They were selected through the cluster sampling method. The data collection instrument was a questionnaire designed by the researcher. Its reliability and validity were already established. The collected data were analyzed via SPSS ver. 16. The significance level was set at <.05. from among the 600 participants, 56.2% were male and 43.8% were female. 51.7% used iron supplementation regularly. The most common reason for the irregular use of the supplementation was mother’s forgetfulness. Significant correlations were obtained between the use of iron supplementation and mother’s awareness (p<0.001), the number of children (p=0.017), the order of birth (p=.040), mother’s education (P<.001) and place of residence (p=.001). In the present study between mother's knowledge of Iron with a statistically significant association was observed. Less than half of the mothers had poor knowledge. Therefore, the development of programs to raise awareness of mothers seems necessary.

Awkward posture during wok with computer is one of the most important risk factors which faced the computer users with risk of musculoskeletal disorders. The aim of the study was to assess effectiveness of an ergonomic training program on correction of awkward postures and reduction of other causes of musculoskeletal disorders among office workers in the National Iranian Gas Company. In this study, a total of 52 office workers were included. Training program was held two months and the Rapid Upper Limb Assessment (RULA) method was employed to assess risk of musculoskeletal disorders before and after of intervention phase. Statistical analysis was performed by using SPSS (ver 19.0). The results showed that the minimum and maximum of RULA scores were 3 and 7, respectively. After training intervention, these scores were reduced to 2 and 4, respectively. The significant association was observed between reduction of musculoskeletal risk factors before and after of intervention. Training program can effectively reduce risk of musculoskeletal disorders when held with the appropriate content and duration.

Radon 222 is a natural radioactive element with a half-life of 3.8 days. It is odorless and colorless as well as water-soluble. Consuming waters which contain high concentrations of 222Rn would increase the effective dose received by different age groups. It would also be followed by an increased prevalence of cancer. In this research, 72 samples of the most commonly used bottled water in Bandar Abbas were collected in 3 consecutive months, May, June and July of 2013. 222Rn concentration was measured by means of a radon-meter model RTM166-2 made. The effective dose received by the 4 age groups, male and female adults as well as children and infants was estimated using the equation proposed by UNSCEAR. The results revealed that the mean and range of 222Rn concentration in bottled waters were 641±9 Bq/m3 and 0-901 Bq/m3, respectively. The mean concentration of 222Rn in the well-known trademarks followed this BW4> BW2> BW8 > BW1> BW6> BW3> BW5> BW7. The annually received effective dose of 222Rn from the most commonly used trademarks of bottled water in Bandar Abbas was lower than the standard limit (0.1 mSv/y) in all age groups.

The purpose of this cross-sectional study was to evaluate the microbial quality of sausage slicers in Bandar Abbas food stores. A total of 60 slicer samples from Bandar Abbas food stores were collected and microbial condition of the samples was examined for total Coliforms, Echricia Coli, Staphylucocus Aurreus and molds and yeasts. Then data were analyzed with SPSS software using descriptive statistical indices. 51.6 percent of sausage slicers were cleaned, while none of apartus were disinfected in end of work. The total bacterial, total coliforms and Staphylococcus aureus counts exceeded the satisfactory limit in less then percents of the samples. Microbial analysis showed an absence of Staphylococcus aureus. Percentage of non contaminated samples for total Coliforms, Echricia Coli, and molds were 3.33, 11.67, and 10 percent. Our finding shows that bacterial contamination of some slicers is higher than the standards level. The results suggest that more effort is needed in the application of personal and environmental hygiene principles in food supplies.

Noise pollution is one of the most important and most common adverse factors which threatening the health of people, especially for workers in industries. Noise induced hearing loss (NIHL), physiological effects and psychological effects are of the most serious threats Caused by noise exposure. This research seeks to repeated complaints of workers and to reduce the noise exposure was conducted at four stations. This interventional study was conducted in two stages. In the first phase, audiometric and noise frequency analysis was conducted to assess the current status and then a noise control through noise enclosure as the most appropriate solution was selected and implemented. Audiometric results showed that In 4000 and 6000 Hz frequency hearing threshold level was greater than 25 dB at all stations, as well as the sound pressure level was higher than the national occupational exposure limits. With regard to the increase in hearing threshold at 4000 Hz is a sign of the beginning of NIHL then, we conclude that the control measures are essential. Therefore, materials with favorable noise transmission loss were selected and noise enclosure was designed. The results of this study showed that noise enclosure can be used as an effective control measure for controlling the noise is studied industrial setting.