IGHE and asthma: Amongst sensitized individuals, the IgG/IgE antibody ratios for dust mite and grass allergens were found to be lower among children who had asthma and allergic rhinitis, respectively, compared to asymptomatic atopic children in two birth cohorts in the UK and Australia, indicating that allergen-specific IgG antibodies in sensitized individuals may protect against expression of symptoms and the development of asthma (36).