[1] Univ Lisbon, Fac Ciencias, Dept Biol Vegetal, P-1749016 Lisbon, Portugal
[2] Univ Lisbon, Fac Ciencias, Ctr Genet & Biol Mol, P-1749016 Lisbon, Portugal
[3] Univ Lisbon, Fac Farm, Dept Microbiol, P-1649019 Lisbon, Portugal
[4] Hosp Santa Maria, Bacteriol Lab, P-1649035 Lisbon, Portugal
[5] Hosp Santa Maria, Dept Doencas Infectocontagiosas, P-1649035 Lisbon, Portugal
[6] Univ Lisbon, Fac Med, Inst Mol Med, Microbiol Lab, P-1649028 Lisbon, Portugal