TB

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Aya

Cards (5)

transmitted by droplet infection
droplet infection  
passed on through air
how is TB spread  
bacterium enters lungs
triggers inflammatory response and is engulfed by macrophage
bacterium closed in a phagosome
bacterium proliferates which destroys macrophage
Primary TB  
after 3 weeks of being exposed cell mediated immunity occurs
immune cells surround infected macrophage
prevent TB from spreading
macrophage in the centre die (caseous necrosis)
TB dies off or remains dormant
active TB  
when TB is reactivated bacterium can spread to other parts of the body
memory T killer cells released
more caseous necrosis formed
TB can spread to other organs through lymphatic system

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TB

Cards (5)

Topic 6: Immunity, Infection and Forensics

Topic 6: Immunity, Infection and Forensics

6.5 Forensic Biology

6.5 Forensic Biology

6.3 Vaccination and Immunity

6.3 Vaccination and Immunity

6.5.3 Microbial Forensics

6.3.1 Types of Immunity

6.5.3 Microbial Forensics

6.3.1 Types of Immunity

6.3.2 Vaccination Strategies

6.5.2 DNA Profiling

6.2.4 Humoral Immunity

6.3.3 Ethical Considerations

6.2.4 Humoral Immunity

6.5.2 DNA Profiling

6.2.3 Cell-Mediated Immunity

6.3.2 Vaccination Strategies

6.3.3 Ethical Considerations

6.2 The Immune System

6.5.1 Determining Time of Death