Interaction of the protective effect of breastfeeding and the aggravating effect of pacifier use in the occurrence of bronchiolitis in children.

Background: Acute bronchiolitis affects around 30 % of infants each winter in France. Breastfeeding (BF) is described as being protective against acute lower respiratory infections in developing countries, but this effect is more difficult to demonstrate in industrialized countries. Moreover, the effect of using a pacifier in the occurrence of bronchiolitis is not clearly established.

Breastfeeding and respiratory, ear and gastro-intestinal infections, in children, under the age of one year, admitted through the paediatric emergency departments of five hospitals.

Background: Breastfeeding is a protective factor against respiratory and intestinal infections in developing countries. In developed countries, proof of this protection is more difficult to show. The objective of the study is to compare the proportion of children breastfed during their first year in groups of children with infectious pathologies supposedly prevented by breastfeeding and children free of these infectious pathologies.