IFNG and tetanus: An increasing number of doses of maternal tetanus immunisation during the pregnancy was associated with increased infant IFN-γ (aGMR 1.44 (1.16, 1.79)) and IL-13 (1.22 (1.01, 1.46)), and a weak increase in IL-5 (aGMR 1.19 (0.97, 1.44)) responses to TT.