TB remains an important and serious global public health challenge that requires coordinated international and national prevention and control efforts. Although the incidence of TB in Canada is low and the disease is no longer common in the general population, TB remains a serious problem in certain sub-populations, such as First Nations and Inuit, persons living in Canada who have arrived from regions of the world with a high incidence of TB and those with other health problems such as HIV/AIDS. The many and varied conditions in which Canadians live mean that the risks and impacts of TB are not uniformly distributed within our boundaries. There is a.