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Measles Outbreak in IL High School
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Anonymous
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100% of them were vaccinated. So much for herd immunity.
http://www.cdc.gov/mmwr/preview/mmwrhtml/00000359.htm |
Anonymous
Herd immunity reduces the risk, it doesn't eliminate it. It's important exactly because immunized individuals may not be perfectly protected (due to immune deficiencies, length of time since last immunization, incomplete immunizations, etc). From your link: "The attack rate was four times greater for students vaccinated 10 or more years before the outbreak than for students vaccinated more recently." That means that for the high schoolers involved, they had never received their 13-year-old MMR booster as they should have. Also important: 100% were not vaccinated, only 100% of the high school students were (and those included students that didn't have the recommended booster, as pointed out). 4 out of 4 of the preschool students who contracted it had never been immunized. That's 100% unvaccinated kids getting it at a very young age. That's bad! |
Anonymous
You realize this was from 1984, don't you? What was your point in posting? |
Anonymous
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There were 411 kids in that same school, all of whom were vaccinated.
Measles ran through the school, and there were 16 cases of measles within that school. That means that the vaccine failed only 4% of the students. I think the fact that 96% of the students were unaffected is impressive. But more impressive is the herd immunity that is mocked by the OP. In the entire county, only 5 additional cases developed. Herd immunity does not mean that measles is never encountered. It means that pockets of infection do not grow and spread. |
Anonymous
This is like those people who make fun of the idea of global climate change because they think that global warming means we shouldn't have a cold winter. 
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