Difference between revisions of "Vaccines"

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==Why Vaccinate?==
  
===Why Vaccinate?===
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*To protect against infectious diseases
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*Where there is no effective treatment once infected
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**E.g. FeLV, FIV
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 +
*Where disease is life-threatening
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**E.g. Canine Parvovirus
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 +
*To prevent the spread of disease
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**E.g. Rabies, FMDV
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 +
==How do we vaccinate?==
 +
 
 +
*Usually by subcutaneous injection for '''systemic''' protection (IgG)
 +
 
 +
*For '''mucosal''' immune reponse, intranasal administration is best (IgA)
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 +
==What do we vaccinate with?==
 +
 
 +
'''Passive immunisation'''
 +
*Administer antibodies
 +
**Maternally-derived antibodies in colostrum
 +
**Antiserum (artificial)
 +
 
 +
*Immediate protection
 +
 
 +
*Short duration of action
 +
 
 +
'''Active immunisation'''
 +
*Administer antigen so the patient's own antibodies protect against disease
 +
**Living organisms
 +
**Dead organisms
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**Toxoids
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**Subunit antigens
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**DNA
 +
 
 +
*Delay in protection
 +
 
 +
*Often needs two or more doses
 +
 
 +
*Long duration of action
 +
 
 +
==What antigens do we use in the vaccine?==
 +
 
 +
==Links==
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 +
==Creators==
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 +
[[Natalie Brown]]

Revision as of 16:01, 25 August 2008

BACK TO IMMUNOLOGY
BACK TO HOST INVASION BY MICROORGANISMS

Why Vaccinate?

  • To protect against infectious diseases
  • Where there is no effective treatment once infected
    • E.g. FeLV, FIV
  • Where disease is life-threatening
    • E.g. Canine Parvovirus
  • To prevent the spread of disease
    • E.g. Rabies, FMDV

How do we vaccinate?

  • Usually by subcutaneous injection for systemic protection (IgG)
  • For mucosal immune reponse, intranasal administration is best (IgA)

What do we vaccinate with?

Passive immunisation

  • Administer antibodies
    • Maternally-derived antibodies in colostrum
    • Antiserum (artificial)
  • Immediate protection
  • Short duration of action

Active immunisation

  • Administer antigen so the patient's own antibodies protect against disease
    • Living organisms
    • Dead organisms
    • Toxoids
    • Subunit antigens
    • DNA
  • Delay in protection
  • Often needs two or more doses
  • Long duration of action

What antigens do we use in the vaccine?

Links

Creators

Natalie Brown