| antibody responses of japanese horses to influenza viruses in the past few years. | a total of 305 horse sera collected in the hidaka district of hokkaido in the years 1988-90 were tested for the presence of hemagglutination-inhibition (hi) antibodies to a/equine/newmarket/1/77 (h7n7), a/equine/tokyo/2/71 (h3n8) and a/equine/kentucky/1/81 (h3n8, kentucky) strains of equine influenza (ei) virus. antibodies to the 3 strains were detected in hardly of the 45 sera from 2-years-old horses which were collected before vaccination. many of the 51 horses, after vaccination with inactiva ... | 1993 | 8461424 |