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Background:The prevalence of Helicobacter pylori (H. pylori) infection worldwide varies greatly among countries and among population groups within the same country. Objective: The aim of this study was to evaluate the prevalence of H. pylori infection among M edical Sciences' students of Hodeidah University, Yemen. Methods: A total of 150 students were recruited (50 males [33.3%] and 100 females [66.7%]) with a mean age of 21.6±1.6 years (age varied from 19 to 27 years). General characteristics and other relevant information of the students in this study were collected using pre-designed questionnaire, which included information such as demographic data, clinical symptoms and socioeconomic status. Serum samples were collected from all volunteers and then blood rapid qualitative serologic test was used for the diagnosis of H. pylori by detecting H. pylori antibodies. Results: The prevalence of H. pylori was 68% (102 of the volunteers showed positive results). The higher infection rate was reported in females (69.6% of positive results= 71 female volunteers) with no significant difference between the positive and negative results. Conclusion: There was a high prevalence of H. pylori infection in our young university M edical Sciences' students' population This high prevalence in this young population may have both important clinical and economic implications.

Infections transmitted in blood transfusions are the most significant concern associated with blood donation. The purpose of this study was to establish the current prevalence of hepatitis viruses (B and C), HIV and T.pallidium among blood donors at National Blood Transfusion and Research Center (NBTRC) Hodeida Branch, Hodeida city, Yemen. Serological markers of HBV, HCV, HIV 1, 2, T. pallidium antibodies were studied in 25446 (males) using commercially available kits, over a period of 3 years from January 2016 to April 2018 at National Blood Transfusion and Research Center (NBTRC) Hodeida Branch , Hodeida city, Yemen. Also, the prevalence of confirmed-positive test results of these infections was evaluated among different ages. The sero-prevalence of HBV and HCV, HIV, T. pallidium infections based on confirmation tests, were 0.74%, 0.19%, 0.38% and 0.18% respectively. The prevalence of HBV was significantly higher in age groups 37-46 years and 47-56 years with significant associated OR equal to 2.3 (p<0.001) and OR=2.7 (p=0.02) respectively. The prevalence of HCV was significantly higher in age groups 47-56 years with significant associated OR equal to 6.5 (p=0.003). The prevalence of T.pallidium was significantly higher in age group 37-46 years with significant associated OR equal to 3.6 (p<0.001). In conclusion: this study highlights the prevalence of HBV, HCV, HIV, and T. pallidium among different male ages. The prevalence varies from one age group to another, being the lowest among younger and very older age groups. Therefore, extensive recruitment of young donors should help ensure a long-term increase in the blood supply without jeopardizing safety.

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