Table 1. Summary of antibodies prevalence.

	Age	Ni	N+	N-	%
Lambs	3–11 months	217	83	134	38.2
Ewes	≥ 1-year-old	125	92	33	73.6

Ni: Initial number of tested serums; N+: Number of sera with positive reaction; N–: Number of sera with negative reaction; %: percentage of seroprevalence.