GSTM1 and influenza: Hb 103; leuc 8.2; tromb 541; eos 0.17; CRP 51; LD 266;blood culture negative; PCR for bacterial stool pathogens: enteroaggregative E. coli; stool PCR for protozoa negative; malaria tick and thin blood smears negative; influenza A and B by RDT negative; NS1 antigen and dengue virus antibodies negative(day 11)