| genetic analyses of an h3n8 influenza virus isolate, causative strain of the outbreak of equine influenza at the kanazawa racecourse in japan in 2007. | in august 2007, an outbreak of equine influenza occurred among vaccinated racehorses with japanese commercial equine influenza vaccine at kanazawa racecourse in ishikawa prefecture in japan. apparent symptoms were pyrexia (38.2-41.0 degrees c) and nasal discharge with or without coughing, although approximately half of the infected horses were subclinical. all horses had been shot with a vaccine that contained two inactivated h3n8 influenza virus strains [a/equine/la plata/93 (la plata/93) of am ... | 2008 | 18840963 |