IGHE and hepatitis A virus infection: Associations for non-significant variables are provided in S1 Table (presence of cockroach, dog at home; presence of Blo t 5, Der p 1, Bla g 2, Can f 1 allergens in bed dust samples; seropositivity to Hepatitis A, Herpes zoster viruses, Toxoplama gondii and Helicobacter pylori; A. lumbricoides and T. trichiura and total serum IgE for one, two or all tested outcomes).