From: Dam Mycobacterium avium subspecies paratuberculosis (MAP) infection status does not predetermine calves for future shedding when raised in a contaminated environment: a cohort study
MAP status dam at parturition
MAP status calves
Colostrum PCR
Colostrum ELISA
Faecal PCR
N
Positive N
% positive
+
-
20
5
25%
4
3
75%
18
28%
14
12
42%
0
0%
9
34%
28
10
36%