<s>[INST] Why is more collaborative action on TB and HIV important? [/INST] AIDS is dramatically fuelling the TB epidemic in sub-Saharan Africa, where up to 80% of
TB patients are co-infected with HIV in some countries. For many years efforts to tackle
TB and HIV have been largely separate, despite the overlapping epidemiology.
Improved collaboration between TB and HIV programmes will lead to more effective
control of TB among people who are infected with HIV and to significant public health
gains.  Source: UNAIDS. Link: https://data.unaids.org/pub/factsheet/2006/tb_hiv_qa.pdf. Field: Lung Disease. Disease: Tuberculosis </s>