RT Journal A1 Friedrich MJ T1 PRotective gene for malaria? JF JAMA JO JAMA YR 2012 FD October 17 VO 308 IS 15 SP 1515 OP 1515 DO 10.1001/jama.2012.13775 UL http://dx.doi.org/10.1001/jama.2012.13775 AB The investigators performed genetic tests for the SAO defect in 1975 children from the Madang area of Papua New Guinea who were enrolled in 3 separate malaria studies: a clinical drug prevention trial with 1121 infants aged 3 to 21 months, a case-control study of 318 children with severe malaria aged 10 years and younger, and a treatment time-to-reinfection study of 206 children aged 5 to 14 years. In the 3 studies, the SAO genetic defect was associated with a reduction in risk of clinical P vivax episodes.