id author title date pages extension mime words sentences flesch summary cache txt cord-017364-d9zmdm23 Crowe, James E. Paramyxoviruses: Respiratory Syncytial Virus and Human Metapneumovirus 2014-02-27 .txt text/plain 18331 897 37 A virus causing a similar cytopathic effect in cultured cells was recovered from infants with respiratory illness shortly after, and studies of human antibodies in the serum of infants and children indicated that infection was common early in life [ 1 , 2 ] . Higher titers of virus in respiratory secretions usually are associated with increased severity of disease, in prospective studies of natural infection [ 114 ] or of clinical vaccine trials [ 115 ] . Most epidemiologic studies of MPV in children show that the virus is the second leading cause of lower respiratory infection after RSV. Acute lower respiratory tract infections by human metapneumovirus in children in Southwest China: a 2-year study The impact of infection with human metapneumovirus and other respiratory viruses in young infants and children at high risk for severe pulmonary disease Comparison of risk factors for human metapneumovirus and respiratory syncytial virus disease severity in young children ./cache/cord-017364-d9zmdm23.txt ./txt/cord-017364-d9zmdm23.txt