National Center for Biotechnology Information NCBI NLM MEDLINE humans pubmed abstract nih national institutes of health national library of medicine research support non-u.s. gov't cell line sensitivity and specificity Evaluation Study Polymerase Chain Reaction / methods* Respiratory Tract Infections / virology* time factors virus cultivation respiratory syncytial virus infections / virology human / isolation & purification influenza respiratory syncytial virus human / genetics respirovirus infections / diagnosis respiratory tract infections / diagnosis* respiratory syncytial virus infections / diagnosis parainfluenza virus 3 influenza a virus / isolation & purification parainfluenza virus 1 human / diagnosis human / virology influenza a virus / genetics influenza b virus / genetics influenza b virus / isolation & purification pmid:15071005 pmc387552 doi:10.1128/jcm.42.4.1564-1569.2004 kate e templeton sitha a scheltinga eric c j claas parainfluenza virus 2 respirovirus infections / virology rubulavirus infections / diagnosis rubulavirus infections / virology