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Table 4 Cow and calf antibody status (ELISA ratio; ER) for each sampling location

From: Transplacental transmission of Theileria orientalis occurs at a low rate in field-affected cattle: infection in utero does not appear to be a major cause of abortion

Antibody ER Herd 1   Herd 2   Herd 3  
  TP1   TP1   TP2  
  Cows Calves Cows Calves Cows Calves
Positive (ER > 2) 3 10 2 9 2 1
Negative (ER < 2) 23 16 19 13 28 29
Total (n) 26 26 21 22 30 30
  1. Abbreviations: TP1 Time point 1 (approximately 5 weeks pre-calving), TP2 Time point 2 (within 48 h post-partum)