Answers are grounded in this paper and cite their sources.
http://deepblue.lib.umich.edu/bitstream/2027.42/61181/1/Aiello AE, Use of antibacterial consumer products containing quaternary ammonium compounds and drug resistance in the community, 2008.pdf
No takes yet. Share an insight, caveat, or question.
Carson et al. (2008) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: