[1] Prince Leopold Inst Trop Med, Unit Trop Lab Med, Antwerp, Belgium
[2] Prince Leopold Inst Trop Med, Clin Trials Unit, Antwerp, Belgium
[3] Fac Hlth Med & Life Sci, Dept Med Microbiol, Maastricht, Netherlands
[4] Vet & Agrochem Res Ctr, Operat Unit Genitopathol, Operat Directorate Bacterial Dis, Brussels, Belgium