The reasons for lost to follow-up were mainly due to the children travelling outside the study-area (20 and 16 in paracetamol and placebo groups, respectively). One child in the paracetamol group withdrew consent on day 14 and for one child in each of the study groups no information could be obtained. Due to the staff being involved in the national vaccination campaign 2 children were lost to follow-up on day 28 and 3 on day 35. LPF/LCF: including children treated outside the study. *: Including one child from each of the groups admitted to hospital. **: Including one child in the paracetamol group admitted to hospital.