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sanitary cordons, lazarettos, quarantine,
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and all the rest of it.
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We've dealt with vaccination as a public health strategy,
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with regard to smallpox in particular.
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And we've talked about a third policy,
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if we want to dignify it in that way,
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and this was the strategy of concealment.
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This morning I want to talk about a fourth approach
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to public health, and this was what's called
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commonly the sanitary movement.
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This was pioneered in Britain in the 1830s and '40s,
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and it was then exported to the continent in North America,