Article
Variation in the spike protein of the 793/B type of infectious bronchitis virus, in the field and during alternate passage in chickens and embryonated eggs.
Avian pathology : journal of the W.V.P.A - 1 Feb 2005
Cavanagh David, Picault Jean-Paul, Gough Richard, Hess Michael, Mawditt Karen, Britton Paul
Abstract excerpt
The degree of variation exhibited within the 793/B serotype (also known as 4/91 and CR88 serotypes) was investigated with nine French and 10 British isolates, collected between 1985 and 1994. The S1 part (1644 nucleotides) of the spike protein gene of the first known isolate of this serotype, FR/CR85131/85, had 95.9% to 97% nucleotide identity with the other isolates. Partial sequencing of isolates from Iran and...
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