TABLE 1.

Frequencies and median levels of IgG antibodies to P. falciparum antigens in children in the rainy and dry seasons

AntigenRainy seasonDry season
No. of IgG positive/total no. (%)aMedian IgG level (range)bNo. of IgG positive/total no. (%)Median IgG level (range)
CSP16/37 (43.2)0.80 (0.14-3.90)13/36 (36.1)0.88 (0.17-3.87)
TRAP17/37 (45.9)0.96 (0.05-2.95)10/36 (27.8)0.78 (0.20-3.35)
LSA-14/37 (10.8)0.35 (0.02-1.86)2/36 (5.6)0.28 (0.02-1.61)
  • a A positive response was defined as an antibody level of ≥1.0 AU.

  • b Individual IgG levels were expressed in AU (see Materials and Methods).