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Introduction: Hepatitis B virus and human immunodeficiency virus (HBV/HIV) co-infection is a global health concern due to its significant impact on morbidity and mortality. Reports of HBV/HIV co-infections are increasing in Nigeria, but information on the disease burden in pregnant women and its implications on the fetus is scarce. This study aimed to determine the prevalence of HBV/HIV co-infection in pregnant women. In addition, the study identified the risk factors for the disease in pregnant women attending antenatal clinics in Osun State, Nigeria. Methodology: We collected plasma samples from 303 consenting pregnant women and used enzyme-linked immunosorbent assay (ELISA) to test for HBV (HBsAg) and HIV I/II antigens. We obtained demographic and risk factor data on HBV and HIV transmission using a structured questionnaire. Results: Our analysis revealed a prevalence of 3.96% for HBV/HIV co-infection in pregnant women. Bivariate analysis indicated a history of blood transfusion, oral or anal sex, and multiple sexual partners may be associated with an increased likelihood of HBV/HIV co-infection in pregnant women. After adjusting for other variables in multivariate analysis, none of these risk factors were significant at the 5% level. In contrast, formal education was a potential preventive factor in this population. Conclusions: Our study provides valuable information on the disease burden of HBV/HIV co-infection in pregnant women in Osun State, Nigeria, highlighting the importance of routine screening for HBV and HIV during antenatal care and emphasizing the importance of implementing preventive measures to reduce the morbidity and mortality associated with HBV/HIV co-infection.

Fresh vegetables and fruits, most of which are perishable, are known to be good sources of nutrients supplements with health benefits. Tomatoes fruits fall into this category of food supplements. However, the post-harvest losses associated with tomatoes fruits have greatly reduced the profitability of its farming and have even scared some farmers away from producing it. To reduce the losses and encourage tomatoes farming, this study designed, constructed, and evaluated the performance of a solar-powered electronic storage chamber for tomatoes fruits. In the performance evaluation, the weight, firmness, ripening index, and rate of spoilage of tomatoes fruits stored, within six weeks, at room temperature and atmospheric humidity and in the storage chamber were analyzed and compared per week. The results showed that the weight and firmness of the test experiment deteriorated by 24.87% and 20.83% respectively while that of the control experiment deteriorated by 50.59% and 79.68% respectively. Also, the percentage of cumulative spoilage for the test and control experiment was estimated to be 23.32 and 68.84 respectively showing a significant reduction in the rate of spoilage when the tomatoes were stored in the chamber.