Husbandry systems
high stocking density, multiple farm holdings-contiguous herds, cattle movement, biosecurity, maize silage
2002- >200 cattle herd incidence %= over 30%, herd size 10: 10% or less
Tuberculing test limitations
comparative skin test, sensitivity 68-95% false negatives, specificity 96-99%
Nature of the disease- usually no clinical signs, latency, variable inter and inta herd transmission, underestimated?
badgers are a wildlife vector- disease persists in social groups, control hugely controversial. direct contact at pasture, enter cattle housing at night, latrines on field boundaries, dead badgers. earthworms disseminate M.Bovis from cattle dung
future- improve diagnostics, financial restraints, vaccination?
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