Infectious diseases are among the most frequent causes of hospital admission and a substantial contributor to morbidity and mortality. These diseases pose a persistent concern, particularly within the pediatric population, where delays or inappropriate management can result in serious harm. Additionally, infectious diseases contribute to overcrowding in pediatric emergency departments (EDs). This study aimed to explore the epidemiology, clinical presentation, diagnostics, outcome, and social and behavioral impacts of infectious diseases on child health. We conducted a retrospective, single-hospital study at a tertiary care center that is publicly funded and owned to serve the entire community. Pediatric patients with at least one or more chief complaints related to the respiratory system or infectious etiology were included. Data analysis was performed using SPSS to assess relationships between variables. A total of 15,106 patients were included, with a mean age of 3.80 years. The largest age group was toddlers (42.8%). Most cases (71.9%) were classified as urgent (Priority 3). Regarding patient outcomes, 76.1% were discharged after receiving appropriate treatment in the ED, and 22.9% required admission for further management. Nearly 38% of patients presented with a single complaint. Fever was the most frequent complaint across all groups. In summary, this study provides insights into the presentation of pediatric respiratory infectious diseases in the emergency room. The study revealed that toddlers were the most affected age group, with fever and cough being the common symptoms.