Immuno-morphological observations were made on 10 donkeys and 14 horses immunized with an attenuated vaccine of Equine Infectious Anaemia (EIA) with healthy donkeys (7) and horses (2) and 2 virulent EIA virus-infected horses acting as controls.

• 本试验共用马传贫弱毒疫苗免疫驴10头,马14匹及健康对照驴7头,马2匹,马传贫强毒对照马2匹,进行了免疫形态学观察。