Transmission Clustering Drives the Onward Spread of the HIV Epidemic Among Men Who Have Sex With Men in Quebec

被引:97
作者
Brenner, Bluma G. [1 ]
Roger, Michel [2 ,3 ]
Stephens, David [4 ]
Moisi, Daniela [1 ]
Hardy, Isabelle [2 ,3 ]
Weinberg, Jonathan [4 ]
Turgel, Reuven [1 ]
Charest, Hugues [5 ]
Koopman, James [6 ]
Wainberg, Mark A. [1 ]
机构
[1] McGill Univ, Jewish Gen Hosp, AIDS Ctr, Lady Davis Inst, Montreal, PQ H3T 1E2, Canada
[2] Univ Montreal, Dept Microbiol & Immunol, Montreal, PQ H3C 3J7, Canada
[3] Univ Montreal, Ctr Hosp, Ctr Rech, Montreal, PQ, Canada
[4] McGill Univ, Dept Math & Stat, Montreal, PQ H3T 1E2, Canada
[5] Inst Sante Publ Quebec, Quebec City, PQ, Canada
[6] Univ Michigan, Dept Epidemiol, Ann Arbor, MI 48109 USA
基金
美国国家卫生研究院;
关键词
PERSONS AWARE; UNITED-STATES; INFECTION; DETERMINANTS; POPULATION; NETWORKS; UNAWARE;
D O I
10.1093/infdis/jir468
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Phylodynamic analysis and epidemiologic data identified 3 patterns of spread of primary human immunodeficiency virus type 1 infection (PHI) among men who have sex with men (2001-2009): 420 unique PHIs, 102 small clusters (2-4 PHIs per cluster, n = 280), and 46 large clusters (5-31 PHIs per cluster, n 5 450). Large clusters disproportionately increased from 25.2% of PHIs in 2005 to 39.1% in 2009 (chi(2) = 33.9, P < .001). Scalar expansion of large clusters over 11 months (interquartile range, 3.5-25.5 months) correlated with cluster membership size (r(2) = 0.174, F = 4.424, P = .047). PHI cohort data revealed variations in social networks and risk behaviors among the 3 groups, suggesting the need for tailored prevention measures.
引用
收藏
页码:1115 / 1119
页数:5
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