translate English to French: environmental factors, such as indoor air quality due to changes in ventilation and building practices, and outdoor air pollution; changes in diet; impact of early childhood infections and their treatment; and a possibly greater awareness of the illness that may have led more people to be tested and diagnosed.
les changements d’ordre alimentaire; l’impact des infections de la première enfance et de leur traitement; et il se peut aussi qu’on connaisse mieux la maladie, ce qui peut avoir amené plus de personnes à se faire examiner et diagnostiquer.