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HIV-1B亚型在西欧和北美正盛行。在非洲HIV-1的基因构成差异很大,具有不同的亚型。在东南亚部分地区E亚型常见。据报道通过异性弯传播的E亚型比B亚型更多见。 HIV-1非B亚型通过旅游时性活动传入澳
HIV-1B subtypes are prevalent in Western Europe and North America. The genetic makeup of HIV-1 in Africa is very different and has different subtypes. E subtype is common in parts of Southeast Asia. It is reported that E subtypes transmitted by heteromorphic bends are more common than B subtypes. HIV-1 non-subtype B is introduced into Australia through sexual activities during travel