Fig. 1

a Pet exposure and other covariates (at prenatal and postnatal) that influence the infant gut microbiota. b General impact of pet exposure and other covariates on gut microbiota measurements of infants at 3–4 months. Circle sizes and colour intensity represent the magnitude of correlation. Red circles = positive correlations; blue circles = negative correlations. Antibiotic exposure of infants was collective consideration of both indirect exposure (maternal IAP) and direct exposure (IV and oral antibiotics)