genetic analyses of an h3n8 influenza virus isolate, causative strain of the outbreak of equine influenza at the kanazawa racecourse in japan 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 ...200818840963
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