Beth
Philosopher
- Joined
- Dec 6, 2004
- Messages
- 5,598
I have another general question on immunity, and I'm not sure where to look for it. I was trying to explain to someone how herd immunity protects and they said a vaccinated kid was just as likely to pass a disease along - be a carrier - as a non-vaccinated kid.
Isn't that wrong? But in searching, it's not something I'm finding easily - what the difference is between vaccinated and not vaccinated, when it comes to carrying a disease.
I'm not sure what you read, but the following is one possible interpretation. Because such a high percentage of children are vaccinated and the vaccine will not take in all of them, there are actually more vaccinated children that will catch the disease than non-vaccinated children. If 95% of children are vaccinated, and in 20% of those, the vaccine doesn't take, then, out of 100 children, there will be 5 unvaccinated children and 19 vaccinated children who may catch and spread the disease.