Re: Did you read any of these findings?

MMWR 33(24): , June 22 1984. The author cites an outbreak of measles among previously-immunized high-school students as proof that the vaccine is not effective. Given that the measles vaccine is (and was known at the time to be) only 90-98% effective in preventing the disease, it is not surprising that there would be a cluster in a high school sooner or later. Here's what the article actually said:

* In this outbreak, vaccinated persons were at greater risk of clinical illness if they had close exposure to a measles patient and if 10 or more years had elapsed since their most recent measles vaccinations.

* Five people who were not in close contact with the index patient got sick with measles. All five were previously unvaccinated. The CDC concluded: "That measles transmission can occur among vaccine failures makes it even more important to ensure persons are adequately vaccinated. Had there been a substantial number of unvaccinated or inadequately vaccinated students in the high school and the community, transmission in Sangamon County probably would have sustained."

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