[1] Infectious Diseases Unit,
[2] St. Andrew's Hospital,undefined
[3] PO Box 839,undefined
[4] Ipswich 4305,undefined
[5] Queensland,undefined
[6] Australia e-mail: jdyer@medeserv.com.au,undefined
[7] Infectious Diseases Unit,undefined
[8] Townsville General Hospital,undefined
[9] Townsville 4810,undefined
[10] Queensland,undefined
[11] Australia,undefined
[12] Department of Medicine,undefined
[13] North Queensland Clinical School,undefined
[14] University of Queensland,undefined
[15] PO Box 480,undefined
[16] Townsville 4810,undefined
[17] Queensland,undefined
[18] Australia,undefined
[19] Department of Microbiology,undefined
[20] Townsville General Hospital,undefined
[21] Townsville 4810,undefined
[22] Queensland,undefined
[23] Australia,undefined
[24] Department of General Medicine,undefined
[25] Townsville General Hospital,undefined
[26] Townsville 4810,undefined
[27] Queensland,undefined
[28] Australia,undefined