Abstract:
:The candidate vaccine virus NIBRG-14 was derived by reverse genetics and comprises the haemagglutinin (HA) and neuraminidase (NA) genes derived from the clade 1 virus A/Viet Nam/1194/2004 on an A/Puerto Rico/8/34 (PR8) backbone. The HA gene was modified to remove the multibasic cleavage site motif associated with high pathogenicity. Reports from manufacturers, confirmed by data generated in this laboratory, have shown that this virus yields a low amount of HA antigen. We have generated a panel of new viruses using reverse genetics in which each virus consists of the PR8 backbone, the NA gene from A/Viet Nam/1194/2004 and a chimeric HA gene with sequences from both PR8 and A/Viet Nam/1194/2004. Here we show that a number of these viruses have improved HA antigen content and yield and are therefore better candidate vaccine viruses for use in production of H5N1 vaccine.
journal_name
Vaccinejournal_title
Vaccineauthors
Harvey R,Nicolson C,Johnson RE,Guilfoyle KA,Major DL,Robertson JS,Engelhardt OGdoi
10.1016/j.vaccine.2010.09.006subject
Has Abstractpub_date
2010-11-23 00:00:00pages
8008-14issue
50eissn
0264-410Xissn
1873-2518pii
S0264-410X(10)01314-9journal_volume
28pub_type
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