New developments in tuberculosis and HIV infection: an opportunity for prevention.

As we approach 2010, the year by which we were to have eliminated TB, we find this ancient disease is making a comeback. This comeback is due to many factors, but the role of HIV infection is clearly important. HIV infection can result in changes in the pathogenesis and presentation of infection with the tubercle bacillus. Consequently, as health care providers, we must respond with changes in our usual methods of prevention, treatment, and infection control. Whereas the increase in TB is currently limited to certain geographic areas, it is likely to spread more widely. All health care providers should be aware of the changing face of TB and have a high clinical index of suspicion for this disease.