Table 3.

Sensitivity, specificity and positive predictive value of rabies diagnosis calculated against the gold standard fluorescent antibody test. Data include only cases for which complete history was available (2002–2005)

	Laboratory diagnosis
Clinical diagnosis	Positive	Negative	Total
Positive	55	19	74
Negative	0	33	33
Total	55	52	107
Sensitivity = 100·00%
Specificity = 63·46% (95% CI: 50·37–76·55%)
Positive predictive value = 74·32% (95% CI: 64·37–84·28%)