TB

caused by bacteria.

symptoms are coughing, chest pains, teirdness, loss of appitite and caughing up blood.

• transmitted by droplets.
• invade e.c.
• stimulate inflammatory response.
• reduced elasticity and thickens walls.
• reduced rate of oxygen diffusion.
• reproduce.

risk factor is overcrowding, poor diet and aids.

treated by antibiotics, prevented by BCG vaccine.