Degradation of bleach produced for disinfection in Kenyan healthcare facilities using novel technology
Oremo, J.; Kim, S.; Mwaki, A.; Quick, R. E.
Show abstract
Disinfection with bleach is recommended for surface cleaning in healthcare facilities, but bleach degrades over time, reducing disinfection effectiveness. We evaluated whether local bleach produced by hospitals using novel technology had adequate shelf life to justify use. Two hospitals (A and B) each produced and stored 0.5% bleach in two 20-liter plastic containers; bleach in one container was alkalinized for increased stability to pH 12; bleach in the other container was not stabilized and, for comparison, a third container of commercial bleach was tested. We tested three bleach samples from each of the containers produced by hospitals A and B, and commercial bleach for free available chlorine (FAC) using N,N-diethyl-p-phenylenediamine at irregular intervals up to 216 days. We compared the expected percent decrease in FAC per 7 days by bleach type using log-normal regression. Stabilized bleach decreased by 1% and 2% in hospitals A and B, respectively, every 7 days while non-stabilized bleach decreased by 21% and 12%, respectively (all p<0.001); commercial bleach decreased by <1% per 7 days. Bleach production proved feasible in hospitals, and both stabilized and commercial bleach maintained adequate concentration for disinfection; non-stabilized bleach maintains a useful concentration for not longer than three weeks after production.
Matching journals
The top 4 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Applying Heat and Humidity using Stove Boiled Water for Decontamination of N95 Respirators in Low Resource Settings 94%
- Comparative Effectiveness of Standard and Contingency-based Cleaning in Acute and Long-Term Care Facilities amidst Staff Shortages and a COVID-19 Surge 94%
- A comparison of several media types and basic techniques used to assess outdoor airborne fungi in Melbourne, Australia. 93%
Similar papers in this journal
- Real-world testing of the durability claims of a commercially available spray-on surface biocide 96%
- Moisture Matters: Unintended Consequences of Performing Wet Sanitation in Dry Environments. 95%
- Laboratory evaluation of a quaternary ammonium compound (QAC)-based antimicrobial coating used in public transport during the COVID-19 pandemic 94%
Similar papers in this journal
- Low-cost, local production of a safe and effective disinfectant for resource-constrained communities 94%
- Silicone toothbrushes: A scoping review of an underutilized tool in global oral health 92%
- Academic institution extensive, building-by-building wastewater-based surveillance platform for SARS-CoV-2 monitoring, clinical data correlation, and potential national proxy 90%
Similar papers in this journal
- The use of germicidal ultraviolet light, vaporised hydrogen peroxide and dry heat to decontaminate face masks and filtering respirators contaminated with a SARS-CoV-2 surrogate virus 93%
- Does Copper treating of commonly touched surfaces reduce healthcare acquired infections? A Systematic Review and meta-analysis 92%
- In vitro and in situ analysis of a novel copper-based antimicrobial surface coating designed to reduce the microbial bioburden of high touch surfaces in a hospital environment. 92%
Similar papers in this journal
- Investigating the resistome, taxonomic composition, andmobilome of bacterial communities in hospital wastewaters ofMetro Manila using a shotgun metagenomics approach 92%
- Distinct sub-MIC kill kinetics of Cu and Ag in Escherichia coli 92%
- Generation of false positive SARS-CoV-2 antigen results with testing conditions outside manufacturer recommendations: A scientific approach to pandemic misinformation 92%
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.