霍亂流行病學

最近的流行病學研究表明個人的易感性霍亂（和其他的痢疾感染）受其血型： O 型血液型那些最易受影響，雖然那些有 AB 型人最能抵抗。兩個極端之間是 A 和 B 的血液類型，A 型受到更好的抵抗比 b 型。

約有 100 萬霍亂弧菌細菌必須通常可攝取正常健康的成年人，導致霍亂雖然敏感性增加可以看出那些削弱免疫系統、個人與降低的胃酸（作為從抗酸使用），或營養不良的人。

它也被假設囊性纖維化的基因突變，一直在人類由於選擇性的優勢：雜合性的突變載體（因此不受影響人士的囊性纖維化）是訴霍亂更好的抵抗感染。在此模型中，囊性纖維化跨膜電導調節器通道蛋白遺傳缺陷干擾細菌綁定到胃腸道上皮細胞，從而減少感染的影響。

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