[1] UNIV CAPE TOWN, MED SCH, OBSERV, VIRUS RES UNIT, CAPE TOWN, SOUTH AFRICA
[2] VICTORIAN PLANT RES INST, BURNLEY, AUSTRALIA
[3] COMM FORESTRY INST, NATL ENVIRONM RES COUNCIL, UNIT INVERTEBRATE VIROL, OXFORD, ENGLAND
[4] UNIV CAPE TOWN, MRC, VIRUS RES UNIT, CAPE TOWN, SOUTH AFRICA