B infection TB infection B infection and o risk factors and diabetes and HIv infection(a very (about 10% over a lifetime)(about 30% over a lifetime) high risk over a lifetime) For people with TB infection For people with TB infection For people with TB infection and no risk factors the risk is and diabetes the risk is 3 and HIv infection the risk is about 5% in the first 2 years times as high or about 30% about 7% to 10% PER YEAR fter infection and about 10% over a lifetime a very high risk over a over a lifetime lifetime Figure 1.6 Risk of developing TB disease over a lifetime Fudan University ZhongshanHlespitamFudan University Zhongshan Hospital www.themegallery.com