Process of invasion
- Created by: Meganhamilton1
- Created on: 23-03-22 11:00
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- Process of Infection
- 1.Colonisation
- infectious microorganisms exist in reservoirs nfectious microorganisms exist in reservoirs
- 2. Invasion
- Infectious agent can invade surrounding tissues/other sites? Developed mechanisms to penetrate tissues & avoid host’s nonspecific and specific defences (inflammation & immunity)
- 3. Multiplication
- Warm, nutrient filled host environment? Undergo rapid multiplication – replicate within infected cells (viral pathogens); replicate in macrophages & other cells (bacterial pathogens)
- 4. Spread
- Produce localized infections without spread to other regions of the body. Relies on virulence factors- adhesions molecules and protection against hosts inflammatory and immune system inflammatory and immune system
- 1.Colonisation
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