L'ordine dei geni negli Orthopneumovirus, caratterizzato dalla presenza delle proteine strutturali NS1 ed NS2, è il seguente[10]: 3'-NS1-NS2-N-P-M-SH-G-F-M2-L-5'
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^Barr, J., P. Chambers, P. Harriott, C. R. Pringle, and A. J. Easton. 1994. «Sequence of the phosphoprotein gene of pneumonia virus of mice: expression of multiple proteins from overlapping reading frames». J. Virol. '68:5330-5334, PMID 8035533 (/?tool=pubmed on-line)
^van den Hoogen BG, et al.: A newly discovered human pneumovirus isolated from young children with respiratory tract disease. Nature Medicine (2001) 7(6):719-724, PMID 11385510DOI: 10.1038/89098