Note: Please be aware the practice sessions for Physical Readiness Evaluation for Police (PREP) Test is a practice session for the the physical component of testing only. All PREP practice dates are subject to cancellation if there are not enough applicants registered to run it. ATS - Sunday, April 30, 2017 - Oakville, ON - FULL.
For these patients, there are two types of tuberculosis: the âopenâ or pulmonary-positive and âclosedâ or pulmonary-negative tuberculosis. In the case of open tuberculosis an inflammation developed inside the lungs that the immune system is not able to isolate, i.e., bring under control.
Doctors make a distinction between two kinds of tuberculosis infection: latent and active. In latent TB, the TB bacteria remain in the body in an inactive state. They cause no symptoms and are not contagious, but they can become active. In active TB, the bacteria do cause symptoms and can be transmitted to others.6. About one-third of the world's population is believed to have latent TB. TB can either be active or latent (where no symptoms occur, and the condition cannot be passed on). 2  TB symptoms (cough, fever, night sweats, weight loss etc.) may be mild for many months, and people ill with TB can infect up to 10-15 other people through close contact over the course of a year.