Recovery of haemoglobin concentration after uncomplicated malaria. Haemoglobin (Hb) concentration (±standard deviation (SD) indicated by vertical bars) in Malawian toddlers (aged 12 to 24 months) with post-malarial anaemia starting 8-week iron supplementation either directly after malarial treatment at week 0 (black) or starting delayed at week 2 (blue). a,b,c,dDifferent letters indicate significant (P = 0.05) differences between and within groups, i.e. if two mean/median values within one parameter carry the same superscript letter, they are not significantly different, i.e. P > 0.05.