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
