FUT2 and infection: The infant health and development were surveyed through 41 variables covering general health and wellbeing, infections, age-adjusted body mass index (BMI) z-score, motor development, gastrointestinal (GI) function and medication, allergy symptoms, and the fucosyltransferase 2 (FUT2) genotype of the infant38 adjusting for DNA extraction batch and the number of processed reads.