id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-252730-ihpden9q	Glasbey, T.	Observations on disinfectant performance	2020-04-28		.txt	text/plain	754	46	52	In the recent review article 'Persistence of coronaviruses on inanimate surfaces and their inactivation with biocidal agents' [1] , the authors claim that "data obtained with benzalkonium chloride at reasonable contact times were conflicting. In that paper [2] , a disinfectant solution having an active ingredient concentration of 0.2% appeared to show no efficacy against the enveloped human coronavirus, whereas it showed remarkable activity (>5.12 log reduction) against a non-enveloped coxsackie virus. A second study cited by the authors, this time dating from 1998, showed a >3.7 log reduction of coronavirus in 10 minutes, used a 0.05% solution of a pharmacopeial grade of benzalkonium chloride (i.e. not a formulated disinfectant product) [3] . In another paper cited by the authors, a more contemporary formulated benzalkonium chloride disinfectant, when tested at a 0.5% concentration, gave a >6.13 log reduction of coronavirus in 30 minutes in both clean and dirty conditions [4] .	./cache/cord-252730-ihpden9q.txt	./txt/cord-252730-ihpden9q.txt