Abstract:
:We constructed a recombinant feline herpesvirus type 1 (FHV-1) which was deleted in a defined region (450 bp) within the thymidine kinase (TK) gene (C7301dlTK) [Yokoyama et al. (1995) J Vet Med Sci 57: 709-714]. In this report, we carried out two experiments to assess the pathogenicity and vaccine efficacy of the recombinant C7301dlTK in cats. The first experiment showed that, following multiple inoculation of the recombinant C7301dlTK by intraocular, intranasal and oral routes, the virus was sufficiently attenuated in cats, although a high titer of the virus was recovered from target organs (eye, nose, and mouth). In the second experiment, two intramuscular vaccinations with the recombinant C7301dlTK protected cats to a significant degree against subsequent challenge with the parent FHV-1 strain C7301 at 4 weeks after the last vaccination. These results demonstrate that the recombinant C7301dlTK is effective as a live attenuated vaccine with a clear genetic marker.
journal_name
Arch Viroljournal_title
Archives of virologyauthors
Yokoyama N,Maeda K,Tohya Y,Kawaguchi Y,Shin YS,Ono M,Ishiguro S,Fujikawa Y,Mikami Tdoi
10.1007/BF01718312subject
Has Abstractpub_date
1996-01-01 00:00:00pages
481-94issue
3-4eissn
0304-8608issn
1432-8798journal_volume
141pub_type
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