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tb
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- 1survival in macrophages- thick waxy cell walls ∴ difficult to break down
- can lie dormant for years
- active when immune system weakens - 2active tb- if patient's immune system cannot contain the disease when it first arrives in the lungs (number of bacteria is too great)
- old infection may break out if immune system is not working properly - 3symptoms- coughing (blood)
- shortness of breath
- loss of appetite/weight loss
- fever & extreme fatigue - 4role of fever- fever causing substances released by macrophages & neutrophils
- chems affect hypothalamus & change set point of core body temp
- tb stops reproducing at 42 degrees
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- AS - Level (topic 6) Biology Fichas sobre tb, creado por Neha Chakraborty el 11/06/2017.
- Creado por
- Neha Chakraborty
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