[1] UNIV TENNESSEE,DEPT MICROBIOL,KNOXVILLE,TN 37996
[2] GEORGIA STATE UNIV,DEPT BIOL,ATLANTA,GA 30302
[3] CAMPUS UNIV AUTONOMA MADRID,CTR NATL BIOTECHNOL,E-28049 MADRID,SPAIN
[4] UNIFORMED SERV UNIV HLTH SCI,BETHESDA,MD 20814
[5] UNIV UTRECHT,AFDELING VIROL,VAKGRP 1,3508 TD UTRECHT,NETHERLANDS
[6] UNIV SO CALIF,SCH MED,DEPT MICROBIOL,LOS ANGELES,CA 90033
[7] CTR RECH JOUEY EN JOSAS,VIROL & IMMUNOL MOLEC LAB,F-78352 JOUY EN JOSAS,FRANCE
[8] UNIV MINNESOTA,DEPT MICROBIOL,MINNEAPOLIS,MN 55455
[9] UNIV WURZBURG,INST VIROL & IMMUNBIOL,D-97078 WURZBURG,GERMANY
[10] RIJKS UNIV LEIDEN,AFDELING VIROL,2300 AH LEIDEN,NETHERLANDS
[11] NATL INST NEUROSCI,KODAIRA 187,TOKYO,JAPAN
[12] INST ARMAND FRAPPIER,LAVAL H7N 4Z3,PQ,CANADA