Recent outbreaks of influenza A(H5N1) have affected many mammal species. We report serologic evidence of H5N1 virus infection in horses in Mongolia. Because H3N8 equine influenza virus is endemic in many countries, horses should be monitored to prevent reassortment between equine and avian influenza viruses with unknown consequences.

中文翻译：

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蒙古马匹甲型流感 （H5N1） 溢出感染的证据

最近爆发的甲型H5N1流感影响了许多哺乳动物物种。我们报告了蒙古马感染 H5N1 病毒的血清学证据。由于 H3N8 马流感病毒在许多国家流行，因此应监测马匹，以防止马流感病毒和禽流感病毒之间发生不明后果的重组。