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

Table 5 Correlations between cow and calf ELISA ratios (two-tailed Spearman’s correlation)

Herd	Sampling time point	Correlation between	Spearman’s rho	P-value
1	TP1	Pre-parturient cow/calf at birth	0.26	> 0.05
2	TP1	Pre-parturient cow/calf at birth	0.06	> 0.05
3	TP2	Cow/calf at birth	0.50	0.01

Abbreviations: TP1 Time point 1 (approximately 5 weeks pre-calving), TP2 Time point 2 (within 48 h post-partum)

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