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Level of protection of chickens against highly pathogenic H5 avian influenza virus with Newcastle disease virus based live attenuated vector vaccine depends on homology of H5 sequence between vaccine and challenge virus.
Römer-Oberdörfer A, Veits J, Helferich D, Mettenleiter TC. Römer-Oberdörfer A, et al. Among authors: helferich d. Vaccine. 2008 May 2;26(19):2307-13. doi: 10.1016/j.vaccine.2008.02.061. Epub 2008 Mar 18. Vaccine. 2008. PMID: 18395947
Molecular biology of avian infectious laryngotracheitis virus.
Fuchs W, Veits J, Helferich D, Granzow H, Teifke JP, Mettenleiter TC. Fuchs W, et al. Among authors: helferich d. Vet Res. 2007 Mar-Apr;38(2):261-79. doi: 10.1051/vetres:200657. Epub 2007 Feb 13. Vet Res. 2007. PMID: 17296156 Free article. Review.