Annual human immunodeficiency virus-1 infection rates among entry travelers in Yunnan According to the results of HIV-1 screening, the HIV-1 infection rate showed a decreasing trend overall (Figure 2 ), although the infection rate of 2006 seemed to be is abnormal.
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Prevalence of human immunodeficiency virus 1 infection in the last decade among entry travelers in Yunnan Province, China.
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However, the proportion of those aged 40–50 years showed an increasing trend, from 9.35% in 2003 to 27.21% in 2012 (Figure 3 A).