Paramyxoviridae
noun pluralPara·myxo·vi·ri·dae | \ ˌpar-ə-ˌmik-sə-ˈvir-ə-ˌdē 
\
\Medical Definition of Paramyxoviridae
: a family of large single-stranded RNA viruses that have a helical nucleocapsid and lipid-containing envelope and that include the parainfluenza viruses and the causative agents of canine distemper, measles, mumps, Newcastle disease, and rinderpest
Note: Respiratory syncytial virus and metapneumovirus were formerly classified in this family but are now classified as pneumoviruses.
— see morbillivirus, rubulavirusComments on Paramyxoviridae
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