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Host invasion by microorganisms (view source)
Revision as of 13:23, 21 August 2008
, 13:23, 21 August 2008→Prevention and control
==Routes of infection==
==Routes of infection==
==Prevention and control==
==Prevention and control==
[[Image:B Cell viral response.jpg|thumb|right|150px|B Cell Immunity to Viruses - B. Catchpole, RVC 2008]]
[[Image:T Cell viral response.jpg|thumb|right|150px|T Cell Immunity to Viruses - B. Catchpole, RVC 2008]]
*Viral evasion of immunity
*Viral evasion of immunity
**Latency: Viruses can "hide" in host cells until the immune system is suppressed
**Latency: Viruses can "hide" in host cells until the immune system is suppressed
*Adaptive Immunity to Viruses
*Adaptive Immunity to Viruses
**The adaptive immune system has two main ways of dealing with viral infection: the first targets viruses in its initial extracellular phase, the second targets infected host cells:
**The adaptive immune system has two main ways of dealing with viral infection: the first targets viruses in its initial extracellular phase, the second targets infected host cells:
***'''B-lymphocytes''' are capable of producing Antibody to neutralize the spike proteins of the viral lipid envelope
***'''B-lymphocytes''' are capable of producing Antibody to neutralize the spike proteins of the viral lipid envelope, preventing the virus from attaching to host cells
***'''Cytotoxic (CD8+) T cells''' target infected cells, which present any number of danger signals
***'''Cytotoxic (CD8+) T cells''' target infected cells, which present any number of danger signals
*[[Vaccines - WikiBlood|Vaccines]]
*[[Vaccines - WikiBlood|Vaccines]]