White F H, Hoff G L, Bigler W J, Buff E
J Am Vet Med Assoc. 1975 Oct 1;167(7):603-4.
Bacteriologic, virologic, and serologic examinations were conducted on 180 urban gray squirrels (Sciurus carolinensis) during a 1-year period in a metropolitan area. Evidence was not found of infections with leptospires, enteric or other bacteria, rickettsial agents, Francisella tularensis, or arthropod-borne viruses. The squirrels were remarkably free of evidence of bacterial or viral infections of importance to man and lower animals.
在一年时间里，对某大都市区的180只城市灰松鼠（北美灰松鼠）进行了细菌学、病毒学和血清学检查。未发现感染钩端螺旋体、肠道或其他细菌、立克次氏体病原体、土拉弗朗西斯菌或虫媒病毒的证据。这些松鼠明显没有对人类和低等动物具有重要意义的细菌或病毒感染迹象。
