Figure 3. Bovine tuberculosis screening. Vet injecting a cow with tuberculin during an intradermal comparative tuberculin test. This is the standard test used to screen cattle for bovine tuberculosis.

Bovine tuberculosis: slow progress

The current surveillance programme is adequate for detecting infected herds, but inadequate for detecting infectious animals. The skin test (SICCT; Figures 2 and 3) and gamma interferon tests...