Lee Veronica C, Sullivan Patrick S, Baral Stefan D
Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Road NE, 4th Floor GCR Building, Atlanta, GA 30322, USA.
Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, 615N. Wolfe Street, Room E7146, Baltimore, MD 21205, USA.
Sex Health. 2017 Feb;14(1):51-58. doi: 10.1071/SH16099.
Infectious disease epidemics occur within dynamic systems and environments that shape risk and, ultimately, the spread of infectious diseases. Gay men and other men who have sex with men (MSM) are disproportionately impacted by HIV everywhere in the world. Several emerging trends present risks for sustained or increased HIV acquisition and transmission, and the growth of global travel in the context of emerging online platforms for social/sexual networking is discussed here. Four factors associated with travel that could potentiate HIV transmission are highlighted: different patterns of sexual risk behaviours during travel; the growth of online tools to meet sex partners more efficiently; the global heterogeneity of HIV strains; and the potential for diassortative mixing of men from high- and low-HIV prevalence areas. Prevention tools and services must rise to these challenges, and innovative mobile applications and programs have played, and will continue to play, an important role in supporting MSM at risk for or living with HIV during their periods of travel.
传染病流行发生在塑造风险并最终影响传染病传播的动态系统和环境之中。在世界各地，男同性恋者及其他与男性发生性行为者（MSM）受艾滋病毒的影响尤为严重。一些新出现的趋势给艾滋病毒的持续感染或传播增加了风险，本文将讨论在新兴的社交/性网络在线平台背景下全球旅行的增长情况。文中强调了与旅行相关的可能增强艾滋病毒传播的四个因素：旅行期间不同的性风险行为模式；更高效结识性伴侣的在线工具的增加；艾滋病毒毒株的全球异质性；以及来自艾滋病毒高流行区和低流行区的男性之间可能出现的交叉性混合。预防工具和服务必须应对这些挑战，创新的移动应用程序和项目已经并将继续在支持旅行期间有感染艾滋病毒风险或感染艾滋病毒的男男性行为者方面发挥重要作用。
