The document provides information about otitis media, including: - Otitis media is the most common illness-related medical visit for preschool children and the second most common diagnosis made by pediatricians. - It mainly affects children from newborn to 7 years of age and occurs equally in males and females. - Acute otitis media is a rapid onset middle ear infection lasting less than 3 months while chronic otitis media is a middle ear infection lasting more than 3 months characterized by recurrent discharge and perforation. - Common causes are Streptococcus pneumoniae and Haemophilus influenzae bacteria. Risk factors include exposure to group childcare, smoke, and lack of breast