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Vaccination, immunity & drug development 4.1.1 - Coggle Diagram
Vaccination, immunity & drug development 4.1.1
Vaccination
artificial immunity - deliberate exposure to antigens in order to provide immunity trying to produce memory cells
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applications of vaccines
herd vaccination
vaccinating all the population at risk, stops spread
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some pathogens are very unstable & frequently mutate; e.g. influenza (changing antigens. - new strains must be monitored
Influenza
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in UK there's a programme to vaccinate all over 65s - 73% of them end up vaccinated - younger groups only 52%
4 types of immunity
2) active artificial
immunity provided by antibodies provided by your immune system as a result of vaccination, e.g. TB vaccine
3) passive natural
a human receives antibodies in a natural way - antibodies provided by breast milk - useful for 1st few days, quick short term protection but doesn't last very long
1) active natural
immunity is provided by antibodies by your immune system as a result of infection, e.g. chicken pox
4) passive artificial
immunity provided by injection of ready made antibodies, e.g. hepatitis A & B
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