Fig. 2

Removal effect of different bacterial biofilms by phages and cocktails. a S. dysentery 1.1869 biofilm was treated with phage SSE1 and its cocktails. b S. baumannii 1.10618 biofilm was treated with phage SSE1 and its cocktails. c S. flexneri 1.1868 biofilm was treated with phage SGF2 and its cocktails. d S. flexneri 1.10599 biofilm was treated with phage SSE1, SGF3, and their cocktails. Gray indicates control groups without phage addition, orange indicates only phage SSE1, yellow indicates only phage SGF2, green indicates phage SGF3 alone, and blue indicates phage cocktails of several different combinations. Error bars represent standard deviation of three biological replicates. Statistical analysis was performed using a paired sample t-test, and double asterisks indicate p < 0.01