| Cattle serologically tested during the observation period |
43 |
43 |
56 |
26 |
26 |
51 |
245 |
| Number of serological positives among tested cattle above |
18 |
20 |
5 |
8 |
13 |
24 |
88 |
| Number of uninfected cattle tested two or more times without
change |
20 |
14 |
46 |
17 |
12 |
25 |
134 |
|
| Unexposed group (uninfected cattle without infected neighbors) |
9 |
6 |
39 |
13 |
10 |
4 |
81 |
| Number seroconverting among unexposed group |
0 |
0 |
2 |
0 |
0 |
1 |
3 |
| Exposed group (uninfected cattle having infected neighbors) |
11 |
8 |
7 |
4 |
2 |
21 |
53 |
| Number seroconverting among exposed group |
1 |
2 |
1 |
4 |
1 |
2 |
11 |
|
| Observation period (months) |
21 |
16 |
29 |
17 |
16 |
15 |
– |
