Equine piroplasmosis (B. equi, B. caballi): an ELISA or Indirect fluorescent antibody test (IFAT) with a negative result at a serum dilution of 1:80.;

• 马梨形虫病：血清做1：80稀释，采用荧光抗体试验进行检测为阴性，或采用酶联免吸附试验检测为阴性;