CRP and tuberculosis: C-reactive protein utility in diagnosing TB in seriously ill hospitalised HIV-positive people with respiratory illnesses and in symptomatic outpatients is limited to clinical prediction rules.34,35,36 White cell count independently predicts TB in seriously ill hospitalised South African HIV-positive people.37 International data have shown some encouraging although not uniform results for the utility of neutrophil-lymphocyte ratio (NLR), WCC and CRP in TB diagnosis.23,33,38,39,40,41,42