来自《耶鲁大学开放课程：1600年后西方社会的流行病 第14集 第14集》
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we all know.我们都了解 -
It is strange that what it implies,但是在疾病的成因上 -
in the case of diseases,它却显得很奇怪 -
should be so seldom recognized until now."直到现在才被发现 -
Or there was Pierre Bretonneau, who believed that还有皮埃尔·布雷托诺 他认为 -
there were morbid seeds that caused special diseases,种子的病变部分导致了特定的疾病 -
just as every seed--in the natural history,正如每个种子 -
that is--gives rise to a determined species.会长出特定的植株 -
And he applied that idea to diphtheria.他把这个观点应用到白喉 -
Just so as apples don't turn into wheat--正如苹果树上不会长出小麦 -
apples seeds into wheat--苹果种子不会长成小麦 -
so too endemic diarrhea地方性的伤寒也是如此