the replication of equine herpesvirus type 1 ( ehv-1 ) and type 3 ( ehv-3 ) was unimpeded in three different cell types-equine epithelial cells , equine fibroblasts , and mouse fibroblasts-which had been blocked in their capacity to synthesize host dna by 2.5 mm hydroxyurea ( hu ) or 2 mm thymidine ( tdr ) .
C0598312
replication
C0012854
dna