2327. 2018–2019 Seasonal Epidemiology of Infections Caused by Influenza Viruses and RSV in Ecuadorean Children Less than 5 Years of Age Residing at Opposite Extremes of Elevation

Abstract

Background. The epidemiology of ambulatory acute respiratory tract infections (ARTI) caused by influenza viruses and respiratory syncytial virus (RSV) in young children is not well described in Ecuador. The seasonality of these infections vary across and within tropical countries experiencing different climates. Understanding trends that differ from one region to the next is needed to optimize implementation of effective preventive measures. Methods. This 5-year prospective study compares the epidemiology of ARTI caused by influenza and RSV in children from Machala (6 m) and Quito (2,832 m), Ecuador. Children < 5 years presenting with ARTI for