in the first half of year 1972 a descriptive exploratory survey was done on 75 selected households in district of kann comprising 589 people. selection was carried out by simple random sampling without replacement. the study shows that 33% of men and women are in the age group of 15-24 and family dimension is 5.01. the difference in income level is high. more than 25% of the families earn less ...

Respiratory infections are a leading cause of illness, morbidity, and mortality around the globe. Easily transmitted between people, respiratory pathogens widespread illness but can be prevented. With use standard precautions, appropriate hand hygiene, patient precautions at onset symptoms, managed maintained. Hygiene is series practices performed to preserve health. According World Health Orga...

this descriptive analytical survey was aimed to study the negative impacts of mine exploitations carried out in the rural regions of the tekab township located in iran. the statistical population of the studied areas consisted of all the heads of the rural households in the villages located in the vicinity of the mines in the tekab township (n=2680). according to the cochran formula, a sample s...