The egg-adapted Van Roekel strain is highly neurotropic and does not grow efficiently in the enteric tract of the chicken,and the field isolates of AEV is usually enterotropic . Despite this.

 
  • 雞胚適應株Van Roekel是高度嗜神經(jīng)的,并且在雞的腸道內不能有效的生長(cháng),而野毒株卻是嗜腸道型的。
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