Fig. 2

Principal coordinates analysis of beta diversity present in the feces of all subjects. Panel a represents subjects who received amoxicillin, their housemates who received a placebo and control subjects who received no therapy. Panel b represents subjects who received azithromycin, their housemates who received a placebo and control subjects who received no therapy. Controls who received placebo or no therapy are demonstrated by black outer circles and subjects who received antibiotics are represented by gray outer circles. Outlines are drawn around all time points representing individual households