From: Eradication of bovine tuberculosis at a herd-level in Madrid, Spain: study of within-herd transmission dynamics over a 12 year period
Productive type
Number of herds
Mean
Median
Standard deviation
Beef
181
2.77
2.32
1.81
Dairy
74
4.69
3.82
3.37
Bullfighting
26
2.45
2.11
1.37
Total
281
3.24
2.59
2.40