2.6 SUBSEQUENT FOLLOW UP Each patient was clinically reassessed on days 1, 2, 3, 7, 14, 21, 28 and 180. Venous blood (days 1, 2, 3, 7, 28) or capillary (finger prick) blood samples (days 14, 21, 180) was examined for malaria parasites at each visit and on any other day if the patient spontaneously returns with fever or worsening symptoms.