RTS,S/AS01E (n = 129) and comparator (n = 66) vaccinees were similar with regard to baseline characteristics (age, sex, WAZ, HAZ, other vaccinations, previous malaria, season, distance to health center, Hb concentration), and most participants (93%) completed the 12-month post-vaccination follow-up [7]. The gene discussed is GSTM1; the disease is malaria.