Ethical approval
Written informed consent was obtained from all study participants or
their parents or legal guardians. The study was approved by the PNG IMR
Institutional Review Board (IRB#11/16) and the PNG Medical Research
Advisory Committee (MRAC 11/21), National Institutes of Health, Division
of Microbiology and Infectious Diseases (DMID Protocol #10-0035) and
Walter and Eliza Hall Institute Human Research Ethics Committee (HREC
#12/10).