Waste management practices among dental surgery staff of major hospitals in Accra: a descriptive cross-sectional study

Introduction: the practice of dentistry in contemporary times produces considerable waste that could be harmful to individuals and the environment at large. In Ghana and many other jurisdictions, there are guidelines that outline how these wastes should be managed. This study was conducted to explore practices concerning dental waste management among dental surgery staff in some public facilities in Accra, Ghana. Methods: a descriptive cross-sectional study involving dental surgery staff of four major facilities in Accra was done. Overall, 124 staff from the selected facilities participated in the study, and 51 different dental surgeries were assessed. Data were collected using a structured questionnaire and an observation checklist. The questionnaire included questions on socio-demographics, as well as knowledge and practices regarding dental waste management. Results: there was unsatisfactory knowledge of waste disposal, while practices did not generally meet international recommendations and the Ministry of Health´s (MOH) guidelines. Though all respondents stored their sharp waste in puncture-proof containers, 98.4% did not label their clinical waste, while 62.9% would dispose of used X-ray fixers by pouring them down the drain. None of the 51 surgeries observed had more than one colour code available. Conclusion: there is a palpable need for education, monitoring, and empowerment concerning waste management in Ghana´s oral healthcare system.

Poliovirus neutralizing antibody levels among individuals in three regions of Ghana

Introduction: Ghana was declared polio-free in 2015 after the last polio case in 2008. We determined the poliovirus neutralizing antibody levels among individuals to identify possible immunity gaps. Methods: A cross-sectional, hospital-based study was undertaken in Northern, Ashanti and Greater Accra regions of Ghana. Individuals referred for haematology at the teaching hospitals' laboratories were invited to participate in our study. Neutralizing-antibody titers to poliovirus serotypes 1,2 & 3 were assayed by WHO-standards. Antibody titers of ≥8 were considered protective. Bivariate and multivariate analyses were conducted on subject characteristics to assess potential factors for failure to seroconvert. P-values < 0.05 were considered statistically significant. Results: Poliovirus (PV) neutralizing-antibody serotypes 1, 2 and 3 were detected in 86.0% (264/307), 84% (258/307) and 75% (230/307) of samples respectively. 60.1% (185/307) were seropositive for the three poliovirus serotypes. Neutralizing poliovirus antibodies for PV1 and PV2 were higher than for PV3. Seroprevalence of poliovirus-neutralizing antibodies among males (PV1=51.9%, PV2= 51.6% and PV3= 52.6%) were higher than in females. Seroprevalence rates of poliovirus-neutralizing antibodies (PV1, PV2, and PV3) were highest in the Northern region (90%, 81%, and 77%). Poliovirus neutralizing-antibodies (PV1and PV2) decreased with age [p< 0.001]. Low seroprevalence of poliovirus-neutralizing antibodies was significantly associated with low school attendance of mothers (p<0.001). Conclusion: Our study population has some protection from polio. However, immunity appears to be lower with a higher age or low Mother's education. This may suggest the need for young-adult booster-dose to minimize the risk of wild poliovirus infection