[1] Univ Nottingham, Hosp NHS Trust, Dept Clin Microbiol, Nottingham NG7 2UH, England
[2] Univ Nottingham, Hosp NHS Trust, Dept Pharm, Nottingham NG7 2UH, England
[3] Univ Nottingham, Ctr Biomol Sci, Inst Infect Immun & Inflammat, Mol Bacteriol & Immunol Grp, Nottingham NG7 2RD, England