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黑斑蚊偏爱O型血？

《医学昆虫学杂志（Journal of Medical Entomology）》刊登过一项研究，比较O、B、AB、A等4种血型者，哪一种人的血液较为吸引黑斑蚊。结果显示，O型人的血液比较受蚊子的“青睐”。

研究员收集了4种血型的受试者，观察黑斑蚊喜欢停留在哪一种血型的人身上，其中83.3％的蚊子停留在O型血型的人身上，46.5％的蚊子则是偏爱A型者。

接着，研究人员再将受试者的手臂皮肤进行一些处理，分别涂抹上Ｏ型血型的H抗原、Ａ型血型的A抗原，以及Ｂ型血型的Ｂ抗原，结果发现，无论人们原来的血型为何，黑斑蚊就是比较喜欢停留在皮肤经H抗原处理过的手臂上。也就是说，蚊子似乎比较喜欢O型的人。

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