Melissa C Opryszko
Affiliation: Johns Hopkins Bloomberg School of Public Health
- Impact of water-vending kiosks and hygiene education on household drinking water quality in rural GhanaMelissa C Opryszko
Departments of Environmental Health Sciences and Biostatistics, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
Am J Trop Med Hyg 88:651-60. 2013..02, 0.21). However, only 38% of households used WHCs by the third year, and 60% of those households had E. coli in their water. Recontamination during water transport and storage is an obstacle to maintaining WHC-vended water quality...
- Evaluation of human enteric viruses in surface water and drinking water resources in southern GhanaKristen E Gibson
Department of Environmental Health Sciences, Division of Environmental Health Engineering, Johns Hopkins Bloomberg School of Public Health and the Johns Hopkins Center for Water and Health, Baltimore, Maryland 21205 2103, USA
Am J Trop Med Hyg 84:20-9. 2011..Total coliforms and Escherichia coli assessed for each sample before and after UF revealed a lack of correlation between bacterial indicators and the presence of human enteric viruses...
- Data gaps in evidence-based research on small water enterprises in developing countriesMelissa C Opryszko
Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Center for Water and Health, Room E6620, 615 N Wolfe St, Baltimore MD 21205 2103, USA
J Water Health 7:609-22. 2009..No rigorous, evidence-based, peer-reviewed scientific studies that control for confounders examining the effectiveness of SWEs in providing potable water were identified...
- Water and hygiene interventions to reduce diarrhoea in rural Afghanistan: a randomized controlled studyMelissa C Opryszko
Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe Street E8132, Baltimore, MD 21205, USA
J Water Health 8:687-702. 2010..Higher economic status as measured through household assets was associated with lower rates of diarrhoea and greater intervention uptake, excepting Clorin. Use of soap was also associated with lower prevalence of diarrhoea...
- Formative ethnographic research to improve evaluation of a novel water system in GhanaTed E Alcorn
Department of International Health, and Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
Am J Trop Med Hyg 84:801-5. 2011..This study demonstrates the value of incorporating qualitative research techniques into evaluations of water-related projects...