Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 2 de 2
Más filtros

Base de datos
Intervalo de año de publicación
BMC Infect Dis ; 23(1): 60, 2023 Jan 31.
Artículo en Inglés | MEDLINE | ID: mdl-36721102


BACKGROUND: The Coronavirus Infectious Disease 2019 (COVID-19) pandemic has continuously affected human life with several devastating effects. Currently, there are effective vaccines to protect people from COVID-19 and the World Health Organization (WHO) has highlighted strategies to influence COVID-19 vaccine uptake in hard-to-reach communities in Ghana. However, prior studies on COVID-19 vaccine acceptability in Ghana are online surveys targeting the literates and those in urban areas, leaving residents in far-flung communities. We assessed knowledge, attitude and acceptability of COVID-19 vaccine among residents in rural communities in Ghana. METHODS: This study was a community-based cross-sectional study and was conducted at three selected regions in Ghana (Northern, Ashanti and Western North) from May to November, 2021. This study included residents 15-81 years, living in the selected rural communities for more than 1 year. Study participants were recruited and questionnaires administered to collect data on knowledge, attitude and acceptance of the COVID-19 vaccine. Statistical analyses were performed using Statistical Package for Social Science (SPSS) version 26.0 and GraphPad Prism Version 8.0 software. RESULTS: Of the 764 participants included in this study, more than half had inadequate knowledge (55.0%), poor attitudes (59.4%) and bad perception about COVID-19 vaccine (55.4%). The acceptability of COVID-19 vaccine in this study was 41.9%. The acceptability of COVID-19 vaccine in Ashanti, Northern and Western North regions were 32.5%, 26.2% and 29.6% respectively. In a multivariate logistic regression analysis, receiving recent or previous vaccine such as HBV vaccine [aOR = 1.57, 95% CI (1.23-3.29), p = 0.002], having good attitude towards COVID-19 vaccine [aOR = 61.47, 95% CI (29.55-127.86), p < 0.0001] and having good perception about the COVID-19 vaccine [aOR = 3.87, 95% CI (1.40-10.72), p < 0.0001] were independently associated with higher odds of accepting COVID-19 vaccine. CONCLUSION: More than half of residents in Ghanaian rural communities have inadequate knowledge, poor attitudes and bad perception about COVID-19 vaccine. The acceptability of COVID-19 vaccine is generally low among rural residents in Ashanti, Northern and Western North regions of Ghana. Residents living in hard-to-reach communities must be educated about the benefits of COVID-19 vaccine to achieve effective vaccination program.

COVID-19 , Enfermedades Transmisibles , Humanos , Vacunas contra la COVID-19 , Ghana/epidemiología , Estudios Transversales , Conocimientos, Actitudes y Práctica en Salud , Población Rural , COVID-19/epidemiología , COVID-19/prevención & control
J Microbiol Biotechnol ; 18(11): 1809-18, 2008 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19047826


Biotechnological treatment of sulfate- and metal-ionscontaining acidic wastewaters from mining and metallurgical activities utilizes sulfate-reducing bacteria to produce sulfide that can subsequently precipitate metal ions. Reducing sulfate at a low pH has several advantages above neutrophilic sulfate reduction. This study describes the effect of sulfide removal on the reactor performance and microbial community in a high-rate sulfidogenic gas-lift bioreactor fed with hydrogen at a controlled internal pH of 5. Under sulfide removal conditions, 99% of the sulfate was converted at a hydraulic retention time of 24 h, reaching a volumetric activity as high as 51 mmol sulfate/l/d. Under nonsulfide removal conditions, <25% of the sulfate was converted at a hydraulic retention time of 24 h reaching volumetric activities of <13mmol sulfate/l/d. The absence of sulfide removal at a hydraulic retention time of 24 h resulted in an average H2S concentration of 18.2 mM (584 mg S/l). The incomplete sulfate removal was probably due to sulfide inhibition. Molecular phylogenetic analysis identified 11 separate 16S rRNA bands under sulfide stripping conditions, whereas under nonsulfide removal conditions only 4 separate 16S rRNA bands were found. This shows that a less diverse population was found in the presence of a high sulfide concentration.

Archaea , Bacterias , Reactores Biológicos/microbiología , Hidrógeno/metabolismo , Sulfatos/metabolismo , Sulfuros/metabolismo , Archaea/clasificación , Archaea/genética , Archaea/crecimiento & desarrollo , Archaea/metabolismo , Bacterias/clasificación , Bacterias/genética , Bacterias/crecimiento & desarrollo , Bacterias/metabolismo , Biodegradación Ambiental , Ecosistema , Hidrógeno/farmacología , Concentración de Iones de Hidrógeno , Residuos Industriales , Oxidación-Reducción , Filogenia , ARN Ribosómico 16S/genética , Análisis de Secuencia de ADN , Eliminación de Residuos Líquidos