Zinc can counteract selection for antibiotic resistance : science
https://www.reddit.com/r/science/comments/farfqw/zinc_can_counteract_selection_for_antibiotic/
Zinc can counteract selection for ciprofloxacin resistance | FEMS Microbiology Letters | Oxford Academic
https://academic.oup.com/femsle/advance-article/doi/10.1093/femsle/fnaa038/5762671