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.
risk factor is overcrowding, poor diet and aids.
treated by antibiotics, prevented by BCG vaccine.
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