KRT1 and infection: In the polyclonal infections, the following allelic combinations were observed in Pfmsp-1 gene: K1/MAD20 in 21.2% (n = 11) isolates, K1/RO33 in 17.3% (n = 9) isolates, MAD20/RO33 in 15.4% (n = 8) isolates and K1/MAD20/RO33 (triple allele) in 5.8% (n = 3) clinical isolates (Fig. 6).