[1] Univ Florida, Dept Microbiol & Cell Sci, Gainesville, FL 32611 USA
[2] Univ Florida, Dept Stat, Gainesville, FL 32611 USA
[3] Univ Kuopio, Dept Clin Microbiol, FIN-70211 Kuopio, Finland
[4] Univ Turku, Immunogenet Lab, Turku, Finland
[5] Univ Turku, Immunogenet Lab, Oulu, Finland
[6] Univ Turku, Immunogenet Lab, Tampere, Finland
[7] JDRF, Ctr Prevent Type Diabet 1, Turku, Finland
[8] Univ Helsinki, Hosp Children & Adolescents, Helsinki, Finland
[9] Tampere Univ Hosp, Dept Pediat, Tampere, Finland
[10] Tampere Univ Hosp, Res Unit, Tampere, Finland
[11] Univ Tampere, Sch Med, Dept Virol, FIN-33101 Tampere, Finland
[12] Tampere Univ Hosp, Ctr Lab Med, Tampere, Finland
[13] Univ Oulu, Dept Pediat, SF-90100 Oulu, Finland
[14] Turku Univ Hosp, Dept Pediat, FIN-20520 Turku, Finland
[15] Univ Florida, Dept Pediat, Gainesville, FL 32611 USA
[16] Univ Florida, Dept Pathol Immunol & Lab Med, Gainesville, FL 32611 USA