The numbers in the second paragraph in the section entitled, "Partial primaquine dose and unsupervised primaquine treatment" are incorrect owing to a transcription error in the final preparation of the paper.

The paragraph should read: "For all subsequent recurrences, only the first dose of the antimalarial drugs was supervised. The risk of recurrence after 6 mo of follow-up between the primary and secondary treatments did not differ significantly for patients in either the CQ arm (HR = 1.2 \[95% CI 0.8--1.84\], p = 0.5) or the AL arm (HR = 0.8 \[95% CI 0.5--1.3\], p = 0.4). However, patients were at significantly greater risk of recurrent *P. vivax* after the unsupervised PQ retreatment than after the partially supervised initial PQ treatment: 36.8% (95%CI 16.6%--68.3%) versus 14.7% (95% CI 8.6%--24.6%) in patients in the CQ+PQ arm (HR = 3.9 \[95% CI 1.3--11.4\], p = 0.014) and 48.1% (95%CI 26.5%--75.6%) versus 17.5% (95%CI 10.7%--27.8%) in patients in the AL+PQ arm (HR = 3.5 \[95% CI 1.4--8.9\], p = 0.008) (S2 Fig)."
