This 2 minute video presents a simple graphical explanation of why it's so important to get an accurate estimate of the true proportion of unvaccinated in a population in order to determine the efficacy and safety of any vaccine
DERECHO TRIBUTARIO Y CONSTITUCIONAL DERECHO Y NUEVAS TECNOLOGIAS ACTUALIDAD JURIDICA Y ECONOMICA MEDIOAMBIENTE

This 2 minute video presents a simple graphical explanation of why it's so important to get an accurate estimate of the true proportion of unvaccinated in a population in order to determine the efficacy and safety of any vaccine