Use of trained African giant pouched rats as a predictor of clinical diagnosis of pulmonary TB

For over a decade, trained African giant pouched rats have been employed in detecting missed pulmonary TB (PTB). However, the relationship between rat-positive results and subsequent clinical PTB or extrapulmonary TB (EPTB) has not been previously reported. This report highlights the use of rat-positivity as a predictor for PTB clinical diagnosis and treatment among presumptive TB. Treating physicians were 1.39 times more likely to clinically diagnose and treat rat-positives than rat-negatives: 12% versus 9%, respectively, odds ratio=1.39, 95% confidence interval: 1.05–1.84 . No difference was observed among EPTB.