[1] Ctr Dis Control & Prevent, Natl Ctr Infect Dis,Epidem Investigat Lab, Div Bacterial & Mycot Dis, Meningitis & Special Pathogens Branch, Atlanta, GA 30333 USA
[2] GN Gabrichevsky Inst Epidemiol & Microbiol, Moscow, Russia
[3] Cent Publ Hlth Lab, Resp & System Infect Lab, London NW9 5HT, England
[4] Natl Publ Hlth Inst, Lab Gram Posit Bacteria, Helsinki, Finland
[5] Ukrainian Ctr Natl Sanitary & Epidemiol Surveilla, Kiev, Ukraine
[6] Inst Pasteur, INSERM, U389, Unite Enterobacteries, F-75724 Paris, France