PARA 410 Lecture Notes - Lecture 3: Epidemiology, Protozoa, Pertussis
10 Feb 2020
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Microparasite cont: childhood infection, low death rate unless in malnourished populations, contagious before symptoms appear, bad when you"re older challenging vaccination program, there is a vaccine that is mostly effective. Actual reproduction ratio is less then the potential (potential is max) In a population of 51 people the ro is # of people infected so for example 20 people infected: these 20 people might not end up being infected. If you avoid the sick person: how many people will it effect. In england 13-14ppl means one individual would be able to infect 13-14 ppl. Ratio is not the same in different places. Range of paper is 11-18 seccondary cases resulting from introduction of one infected individual into a fully susceptible population. Graph showing the implications of ro for control vaccination. Y axis: proportion of people needed to be vaccinated or vaccinated in a vaccination campaign to eradicate measles.
