Both the number of eggs in utero and female body length were negatively related to the type 2 reaction (IL4, IL13, GATA3, dual and single infections) and either positively (Tbet, TGFβ, single and dual infections) or negatively (IFNγ, FoxP3, single and dual infections) associated with the inflammatory and T‐cell regulatory responses. This evidence concerns the gene FOXP3 and infection.