Background In 2020, COVID-19 spread rapidly in Iran and other parts of the world. Some of the epidemiological aspects of this disease remain unknown; therefore, the present study was designed with the aim of determining the trend of incidence and mortality of COVID-19 from February 2020 to July 2021 in southern Iran. Methods The present study was a cross-sectional analytical study that included all people who had COVID-19 in the period from February 2020 to July 2021 and whose information had been registered in the Infectious Diseases Center of Larestan city and MCMC unit. The study area included the cities of Larestan, Evaz, and Khonj, located in the south of Fars province in southern Iran. Results Since the emergence of COVID-19 until July 2021, a total of 23,246 new cases of infection were reported in the southern region of Fars province. The average age of patients was 39.90±18.30 years and the range of ages varied from 1 to 103 years. The results of the Cochran–Armitage trend test showed that the trend of the disease in 2020 was completely upward. The first positive case of COVID-19 was recorded on February 27, 2020. The incidence curve in 2021 is sinusoidal, but in general, the results of the Cochran–Armitage trend test showed that the incidence of the disease increased significantly ( P -trend < 0.001). Most cases were reported in July, April, and the end of March. Conclusion In general, the incidence rate of COVID-19 has varied sinusoidally from 2020 to mid-2021. Although the incidence of the disease increased, the number of deaths has fallen. It seems that the increase in the number of diagnostic tests and the implementation of the national COVID-19 immunization program have been effective in changing the trend of the disease.

Background:Obesity and overweight in early life arebeingone of the challenges of public health in both developed and developing societies.Methods:This cross-sectional study was designed on the Global School-based Student Health Survey (GSHS) data from the WHO, in collaboration with UNAIDS, UNESCO, and UNICEF. The countries of low- and middle-income in the six WHO regions were included.BMIis classified into three classes: overweight, normal-weight, and underweight based on length/height, weight, and age.Results: Of the 187893 students aged 11 to 17 years, 43220 (23.0%) were overweight. The prevalence of obesitywas higher in boys (23.67% and 22.39% in boys and girls respectively).The probability of obesity decreases by the age of the students. There was a positive relationship between following personal hygieneprinciples and overweight so that the use of soap and washing hands after going to the toilet increased the odds of overweight by 17% and 11%, respectively.Each unit increased the prevalence of overweight in adulthood (1.07 - 1.04 OR = 1.06), and each unit increase in Gini Index (OR = 1.03,1.00-1.05) on average increased the odds of overweight in students aged 11 to 17 years, but for the prevalence of overweight in children less than 5 years old, GDP and SDGs did not have any significant effect onoverweight in children aged 11 to 17 years.Conclusion:The country-level Gini index and the prevalence of overweight and obesity in adults had a significant role in overweight and obesityin students. Due to the different situation of the countries, it is required to plan specific programs to tackle overweight in children.

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