[1] Univ New South Wales, Kirby Inst, Natl Trachoma Surveillance Reporting Unit, Darlinghurst, NSW 2010, Australia
[2] Baker IDI Cent Australia, Melbourne, Vic, Australia
[3] Sydney Childrens Hosp, Randwick, NSW, Australia
[4] Natl Ctr Immunisat Res & Surveillance, Westmead, NSW, Australia