Context: The risk of reactivation increases with immunosuppression, such as that caused by infection with HIV. In people coinfected with M. tuberculosis and HIV, the risk of reactivation increases to 10% per year. Studies using DNA fingerprinting of M. tuberculosis strains have shown reinfection contributes more substantially to recurrent TB than previously thought, with estimates that it might account for more than 50% of reactivated cases in areas where TB is common. The chance of death from a case of tuberculosis is about 4% as of 2008, down from 8% in 1995.

Question: As immunosuppression goes up in tuberculosis cases, what risk rises with it? 
Answer: reactivation

Question: What disease has a similar relationship as TB does between reactivation and immunosuppression?
Answer: HIV

Question: If you'd been diagnosed with tuberculosis in 1995, how great a chance would you have faced of dying from it?
Answer: 8%

Question: In what year did the risk of dying from TB reach half what it was in 1995?
Answer: 2008

Question: New studies have found that half of reactivation cases of tuberculosis might actually be due to what other "re-" word?
Answer: reinfection

Question: Reactivation is caused by what disease?
Answer: Unanswerable

Question: What is the risk of reactivation in someone who only has M. tuberculosis?
Answer: Unanswerable

Question: What was the chance of death from HIV in 2008?
Answer: Unanswerable

Question: When did scientists begin to suspect reinfection was worse than previously thought?
Answer: Unanswerable

Question: What methods have recent studies used to examine HIV strains?
Answer: Unanswerable