Preterm infants and children with bronchopulmonary dysplasia, hemodynamically significant congenital heart diseases and number of other diseases are a group of severe risk of RSV bronchiolitis requiring hospitalization and intensive, including respiratory, therapy. RSV bronchiolitis can develop as at stationary phase due to nosocomial infection, and outpatient. The article presents current information about clinical and epidemiological features of nosocomial RSV bronchiolitis in children of severe course risk groups based on infection outbreaks analysis from literature and own data. It presents data on non-specific prevention of nosocomial RSV infection and experience of prevention with nosocomial spread of monoclonal antibody to virus F protein palivizumab. © 2016, Pediatria Ltd. All rights reserved.