We have since compared the PmrB amino acid sequences of the Liverpool Epidemic Strain (LES)B65 used for the initial infection (DDBJ sequence read archive ERS2269679 (http://ddbj.nig.ac.jp/DRASearch/sample?acc=ERS2269679)) and PAO1 (GenBank AAG08163 (https://www.ncbi.nlm.nih.gov/protein/AAG08163.1)) and observed no differences, suggesting the SNP acquired by LESB65 in the mouse model was not a reversion mutation. This evidence concerns the gene SMOX and infection.