Human parainfluenza virus infection in severe acute respiratory infection cases in Beijing 2014‐2016: A molecular epidemiological study

摘要

BackgroundSevere acute respiratory infection (SARI) threatens human health and even survival, causing a huge number of hospitalized patients every year. However, as one of the most common respiratory viruses circulated worldwide, the epidemiological and phylogenetic characteristics of human parainfluenza virus (HPIV) in these cases were not well known.