mohammad sharif yazdi

Considering the importance of preventive behaviors against contracting covid-19, especially among students, this study was conducted with the aim of investigating the effect of the educational program based on the multi-theory model on preventive behaviors against contracting covid-19 among students in Yazd city.

The current research is an intervention study that was conducted on undergraduate students of Yazd universities. They were selected by simple random sampling for the intervention group and the control group (50 people). The required information was collected by means of questionnaires whose reliability and validity were measured by the research team, before and 1 month after the implementation of the intervention. Also, a significance level of 5% was considered. Analyzes were done with SPSS 18 software.

The average age of the participants was 20.91±1.77. And most of them were women (71%). The mean scores in the field of emotional transformation and change in the social environment of hand washing behavior showed a significant increase after the intervention in the intervention group. In the vaccine acceptance behavior before and after the intervention, a significant difference was observed in the average score of cooperative dialogue in the intervention group. In the area of cooperative dialogue, change in physical environment, emotional transformation, training for change and change in the social environment of the behavior of wearing a mask, after the intervention, a significant difference was observed in the average score of the intervention group (P-Value ≤ 05).

The educational program based on multi-theoretical model structures can have a significant impact on the adoption of preventive behaviors against the infection of covid-19 in students. It is suggested that by conducting a comprehensive qualitative study, the impact of preventive behaviors against contracting Covid-19 and other emerging infectious diseases in the future based on a multi-theoretical model.

‎This article examines the transmission of COVID-19 from a mathematical model perspective‎, ‎analyzing its spread pattern‎. ‎Given the virus's adherence to standard epidemic disease transmission principles and the effectiveness of vaccination in mitigating and controlling its spread‎, ‎we employ the SVIR model to demonstrate the disease's progression in Yazd‎. ‎The data used in this study was provided by the medical care monitoring center of Yazd Shahid Sadoughi University of Medical Sciences‎, ‎Yazd‎, ‎Iran‎, ‎for 770 days between September 27‎, ‎2020 to November 5‎, ‎2022‎. To establish thelparameters‎, ‎we utilized the genetic algorithm (GA) to minimize the cost function between the model's prediction and the real data‎.‎Additionally‎, ‎we conducted our simulations using Matlab software‎. ‎Identifying the factors that contribute to the spread of the virus through mathematical modeling can be a crucial step towards controlling the disease‎, ‎given its catastrophic impact on the economy‎, ‎society‎, ‎and health‎.

Considering the high prevalence of COVID-19 in Iran, it is necessary to allocate health resources in response to this pandemic. Due to limitations in the number of hospital beds, analysis of the length of hospital stay in COVID-19 patients may be helpful for decision-making. This retrospective cohort study (survival study) was conducted through a follow-up of 1465 COVID-19 patients in Yazd Province, Iran. Demographic, diagnostic, and clinical data were collected using the COVID-19 data dashboard of Shahid Sadoughi University of Medical Sciences. The Kaplan-Meier method and Cox regression were used to calculate the survival probability and hazard ratio; the log-rank test was applied to compare survival function according to qualitative variables. The median and mean survival time was 25 days (95% CI: 19.10-30.89 days) and 28.38 days (95% CI: 25.6-31.16 days), respectively. The Survival probability for one week, two weeks, three weeks, four weeks, five weeks, six weeks, and seven weeks and more was 92%, 76%, 57%, 48%, 45%, 33%, and 20%, respectively. There was a significant relationship between survival time and age categories, CT scan results, history of chronic pulmonary disease, history of diabetes, history of cardiovascular disease, and disease severity (P<0.05). According to the results, age, history of cardiovascular and pulmonary diseases, and history of diabetes increased the length of hospital stay. Preventive measures should be followed to prevent COVID-19 infection and manage hospital beds required for efficient treatment of patients.

Bank employees are one of the groups at risk of covid-19 after the medical staff. One of the effective models in the field of preventive behaviors against contracting Covid-19 is the health belief model. This study was conducted with the aim of determining the effectiveness of educational intervention in the prevention of covid-19 based on the health belief model among the employees of Yazd Bank.

The present intervention type study (intervention and control group) was conducted in 1400 on 106 employees of the National Bank of Yazd. Two WhatsApp groups were formed. Questionnaire links were sent to both groups. The questionnaire used in this study was the standardized questionnaire in the study of Delshad et al. For the intervention group, educational content based on the constructs of the health belief model was prepared in the form of pamphlets, educational clips, info graphics, podcasts, and educational messages and sent in the virtual group (WhatsApp and Yes). Three weeks after the completion of the training program, the link to the questionnaire was again sent to both groups. The data was analyzed using SPSS software.

All constructs of the health belief model were significantly different in the intervention group after the implementation of the educational intervention (p<0.005). After the implementation of the educational intervention, the preventive behaviors against contracting Covid-19 improved significantly (p<0.005). The most significant increase is related to the structure of behavior, where the mean (standard deviation) of the behavior score in the intervention group before the implementation of the educational intervention was 23.94±6.21, and 3 weeks after the implementation of the educational intervention, it was 20.91±3.91 44 increased

Considering the positive impact of the health belief model on preventive behaviors against contracting Covid-19, it is suggested to use the mentioned model in the educational planning of Covid-19.

COVID-19 virus infected all the countries of the world in less than a few months due to its high contagion, so it has become necessary to promote preventive behaviors of the disease in correct health plans for its prevention and control. Therefore, this study was conducted with the aim of determining the preventive behaviors of COVID-19 among youth using the health belief model.

This descriptive-cross-sectional study was conducted on 412 youth people aged 18-30 years in Khomeyni shahr of Isfahan province. The data was collected using a standardized researcher-made questionnaire based on the health belief model using convenience sampling method. The collected data were analyzed by SPSS 22 software.

Preventive behaviors and obstacles for doing them were more in women than in men. A positive and significant correlation was observed between age, education level, and preventive behaviors of COVID-19. There was a positive and significant correlation between preventive behaviors of Covid-19 with perceived sensitivity, perceived benefits, perceived barriers, and self-efficacy. Meanwhile, the strongest correlation in this study was between self-efficacy and perceived benefits.

According to the findings of the research and the relationship between the constructs of the health belief model and the preventive behaviors of the COVID-19 disease in young people, it seems that the methods based on the health belief model to increase the preventive behaviors of the COVID-19, especially in men, are effective and recommended. It is also suggested that changing self-efficacy and perceived benefits constructs should be prioritized in the design of future interventions to promote preventive behaviors of COVID-19 in young people.

Influenza virus is one of the deadliest viruses that has threatened the human population over the years. Every year, organizations and hospitals must be prepared to deal with the disease and treat people with the flu and be able to manage the disease in the hospital. The aim of this study was to identify hospital management strategies for human influenza in Yazd province, central part of Iran.

This study was a qualitative study with inductive conventional approach. A total of 14 main hospitals in Yazd province were surveyed in 2021. The study population included heads and managers of hospitals, nurses, educational and clinical supervisors, metrons, officials of the quality improvement office and the infection Control Committee. Participants were selected using snowball sampling method. semi structured interviews were used to collect data. The sample size in this study was up to information saturation. Content analysis method was used to analyze the data.

Using the opinions and views of 38 managers and officials of selected hospitals in Yazd province, data saturation was obtained. The most important tasks of the hospital management in terms of influenza control and management were divided into 5 areas (field measures, support, training, awareness, protection   and measures in the field of human resources). The major challenges   regarding the influenza control and management were classified into 3 areas: hospital (health), macro (university, provincial, national and Ministry of Health guidelines) and community level. Finally, the most important solutions and suggestions were categorized in these 3 key areas.

Based on the categorized challenges and problems, as well as the classification of the most important strategies and suggestions, useful action can be taken to    the control and management of influenza, both at the hospital level and in the community, in Iranian hospitals especially in Yazd province.

Today, in spite of the progress made in all sciences especially in medicine and health, parasitic diseases are still a major health and economic problem in many countries, especially developing countries. These countries are losing a lot of manpower, consuming high costs and time in order to eradicate and control the parasites; therefore, it has caused many problems. In this study, the prevalence of intestinal parasites in the specimens sent to the Central Laboratory and also Shahid Sadoughi Hospital laboratory in Yazd during 2015-2016 was investigated based on age, sex and season.
The sampling method was as easy and with the census from total of referrals to the Central Laboratory and also Shahid Sadoughi Hospital laboratory of Yazd during 2015-2016. Most of the stool specimens were prepared in three steps and one step by direct method (Physiology serum and Lugol's solution) and then were examined by the light microscope.
40351 cases were investigated. The highest number of referrals and positive cases were related to the summer season and the least positive cases were related to the winter season. The age groups of 0-10 and 30-40 years old had the highest levels of infection, respectively. There was a significant relationship between age and infection prevalence (P=0.001).
The findings of this study indicate that the frequency of intestinal parasites in Yazd province was low due to warm and dry weather and the fit health level was low and significantly decreased compared to previous years, but similar to other parts of the country, the highest prevalence was related to low ages and Giardia and Blastocystis hominis.

Occult HBV infection of hemodialysis (HD) patients is informative in terms of virus transmission. It may be of clinical importance in HD patients. The aim of this study was to investigate the prevalence of anti-HBc in the HD Patients. Number of 126 patients undergoing hemodialysis were included in this study from main hemodialysis units in Yazd. Hepatitis B surface antigens (HBsAg), hepatitis B core antibody (anti-HBc) were examined in all subjects. Finally, stored serum samples from anti-HBcAb positive, HBsAg negative patients were anonymised and tested for HBV DNA by real time quantitative PCR assay. The age range of the patients was 17-88 years. Of the 126 patients, 123 patients (97.6%) were HBC-Ab negative and 3 (2.4%) were positive. Of 3 patients with Anti-HBC positive, HBV DNA was detected in 1 patient. This study showed a low rate of isolated anti-HBc (2.4%). HBV DNA was also detected in 1 patient.