Median number of P. falciparum per µl whole blood by season.

Includes 14a, 7b and 13c children for whom pfcrt K76T genotyping failed.P values and confidence intervals were calculated by quantile regression (1000 repetitions).P values in bold refer to differences compared to the low season January - April.P values in brackets and italics refer to comparisons between seasons May-August and September –December.Data from mixed infections are not presented as the numbers are small (9, 12 and 18 per season).