[1] Natl Inst Hlth Dr Ricardo Jorge, Dept Infect Dis, Natl Reference Lab Antibiot Resistances & Healthc, Lisbon, Portugal
[2] Univ Porto, CECA ICETA, Ctr Estudos Ciencia Anim, P-4100 Oporto, Portugal
[3] Case Western Reserve Univ, Dept Med Pharmacol Mol Biol & Microbiol, Louis Stokes Cleveland VA Med Ctr, Res Serv, Cleveland, OH 44106 USA