Background: Zinc is an essential micronutrient for growth and proper immune function. Zinc deficiency may contribute to the incidence, prevalence and severity of diarrhea and can also cause failure to thrive in children. The purpose of this study was to evaluate the serum zinc level in children with diarrhea.

Materials and Methods: This cross-sectional study was performed on 105 children with acute watery diarrhea referred to Kashan Shahid Beheshti hospital during 2008-9. To test the serum zink level, a sample of venous blood (5-cc) was taken. In addition, the age, sex, the duration of diarrhea, the length of hospitalization and FTT were evaluated. Data were analyzed using Chi-square, T-test and ANOVA.

Results: Among the 105 children, 48.6% were male and half of them aged more than 12 months. The results showed that the mean serum zinc level in hospitalized children and diarrhea duration more than 3 days was lower than the other children (P=0.023 and P=0.004, respectively). Moreover, the mean serum zinc level in children with FTT was lower than the children without FTT (P<0.001).

Conclusion: Duration of diarrhea, the length of hospitalization and FTT in children with low serum zinc levels was more than the other children.

Background: Hepatitis B infection is a major public health problem worldwide. An important way to prevent hepatitis infection, especially among the high-risk populations including healthcare workers is vaccination. So, this study was conducted to evaluate the post- vaccination immunologic response of health staff in Kashan University of Medical Sciences during 2012-2013.

Materials and Methods: A cross-sectional descriptive study was performed on 227 staff randomly selected from the ones received the last dose of vaccine three months ago. Their blood samples were tested for Anti-HBs and Anti-HBc using the ELISA and RAPID tests, respectively.

Results: Among 227 subjects, 167(75.6%) cases were female and 56 (24.4%) male (mean age, 31.35±7.85 years). Ninety-five percent of the women responded to the vaccine (10.8% hypo-response 14.4% intermediate-response and 70.1% hyper-response). On the other hand, 95.3% of the men responded to the vaccine (20.4% hypo-response, 20.4% intermediate- response and 55.6% hyper-response).

Conclusion: The results of this study reveal the appropriate immune responses to vaccine one year after the vaccination. Although among the subjects the immunologic response to vaccine after one period of vaccination has not been 100%, the current protocol for hepatitis B vaccine yields the remarkable response.