Rupture of tubercule can allow bacteria to enter bronchioles, spread throug respiratory system and other tissues Patients with pulmonary TB have respiratory problems, cough up mucus secretions frequently. TB can attack many other sites in body as well as lungs. TB is one of the most common diseases world-wide. Practice your diagnostic skill with a Web-based case study of a patient with TB . But does provide greater opportunities for grown, reproduction, and spreading than living inside cells.
Some bacteria can grow either inside host cells or outside, depending on circumstances.
Shigella , Salmonella sp. Pathogen must be able to bind to some receptor molecule on cell surfaces. These typically have necessary functions for cell. Most diseases are tissue specific, because only certain tissues have receptor molecule needed. Fimbriae or pili are used by some bacteria to attach selectively to certain tissues.