Warning: Some posts on this platform may contain adult material intended for mature audiences only. Viewer discretion is advised. By clicking ‘Continue’, you confirm that you are 18 years or older and consent to viewing explicit content.
Is it 97% on the basis that herd immunization makes your exposure unlikely, so that you’d at best be exposed to a single person that could contract it to you?
Or is it 97% on the basis that you are submerged in an atmosphere full of people sick from measles?
So either it refers to a clinical trial with a defined exposure, or it referes to empircal data that is based on the conditions in the real world, which critically includes the herd immunity.
Herd immunity is a critical factor and it works exponentially. E.g. from 100% to 95% is less of an issue than from 95% to 90% The critical point for measles is at around 92% to prevent exponential infections. This included the risk for people who are vaccinated
Measles are among the most contagious diseases. To interpret the graph. Because of the high R rate w.o. immunization, you need 92% immunization rates to have one measle case cause another measle case, e.g. reproduction = 1. You go below and it goes exponential.
Is it 97% on the basis that herd immunization makes your exposure unlikely, so that you’d at best be exposed to a single person that could contract it to you?
Or is it 97% on the basis that you are submerged in an atmosphere full of people sick from measles?
WHO information on these numbers
So either it refers to a clinical trial with a defined exposure, or it referes to empircal data that is based on the conditions in the real world, which critically includes the herd immunity.
Herd immunity is a critical factor and it works exponentially. E.g. from 100% to 95% is less of an issue than from 95% to 90% The critical point for measles is at around 92% to prevent exponential infections. This included the risk for people who are vaccinated
Measles are among the most contagious diseases. To interpret the graph. Because of the high R rate w.o. immunization, you need 92% immunization rates to have one measle case cause another measle case, e.g. reproduction = 1. You go below and it goes exponential.
Wikipedia - Herd immunity