<s>[INST] How common are ear infections in young children? [/INST] Very. Between 60 and 80 percent of infants have at least one episode by 1 year of age. By age 3, it's 80 to 90 percent. Source: UIHC.ORG. Link: https://uihc.org/childrens/health-topics/ear-infections-children-frequently-asked-questions. Field: Otolaryngology. Disease: Ear Infection </s>