Three new measles cases have been confirmed in Alberta, pushing the south health zone into outbreak status. The additional cases, reported midday on Monday, are all in the same household that was ...

Caused by Mycobacterium tuberculosis, the disease is characterised by the formation of nodules (tubercles) in the tissues, particularly in the lungs. While TB typically affects the respiratory system, ...

They’ll have what we call latent TB, where these clumps of white blood cells form what are called tubercles to surround the bacteria and keep it in check. But in about 10 percent of people who ...