for vaccines to be most effective in preventing disease...

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    for vaccines to be most effective in preventing disease outbreaks requires us to reach " herd immunity threshold "
    for measles, this means at least 93-95% of the population need to be immunised.

    https://www.who.int/immunization/sage/meetings/2017/october/2._target_immunity_levels_FUNK.pdf
    summary
    1. When the number of secondary infections generatedby each infective person is less than 1, transmission will stop.
    2.- To achieve this for measles, the population immune needs to be 93-95%, the herd immunity threshold.
    3 - This is based on two assumptions:
    1. homogeneous mixing among individuals
    2. stationary, uniform immunity (through vaccination)

    I reckon the WHO knows more about disease prevention and control than Larry Palevski
    Last edited by woollydog: 11/03/19
 
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