Agriculture & Biology
paratuberculosis
76%
cross-sectional studies
69%
dairy herds
65%
epidemiology
57%
herds
40%
testing
23%
Mycobacterium avium subsp. paratuberculosis
21%
cows
15%
disease prevalence
14%
enzyme-linked immunosorbent assay
8%
Dairy Herd Improvement Associations
8%
milk
7%
disease surveillance
7%
monitoring
6%
loam soils
6%
biosecurity
6%
chronic diseases
6%
herd size
6%
silt
6%
space and time
6%
diagnostic techniques
6%
disease incidence
5%
soil types
5%
dairy cattle
5%
statistics
5%
dairies
4%
labor
4%
antibodies
3%
environmental factors
3%
soil
2%
animals
2%
sampling
1%
Medicine & Life Sciences
Voluntary Programs
100%
Paratuberculosis
89%
Epidemiology
47%
Cross-Sectional Studies
39%
Soil
10%
Milk
9%
Enzyme-Linked Immunosorbent Assay
7%
Mycobacterium avium
6%
Logistic Models
6%
Routine Diagnostic Tests
4%
Cattle
4%
Statistics
3%
Chronic Disease
3%
Databases
3%
Antibodies
2%
Animals
2%
Incidence
2%
Population
1%