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'Transport infrastructure' determines spread of HIV subtypes in Africa
Date:12/4/2012

Philadelphia, Pa. (December 4, 2012) Road networks and geographic factors affecting "spatial accessibility" have a major impact on the spread of HIV across sub-Saharan Africa, according to a study published online by the journal AIDS, official journal of the International AIDS Society. AIDS is published by Lippincott Williams & Wilkins, a part ofWolters Kluwer Health.

Using sophisticated mapping techniques and detailed databases, Dr Andrew J. Tatem of the University of Florida and colleagues have found "coherent spatial patterns in HIV-1 subtype distributions" across Africa. The researchers write, "A comprehensive understanding and evidence-base on accessibility, travel and mobility in resource poor settings wouldprovide a valuable resource for the strategic planning of disease control." The article is available on the AIDS journal homepage and in the November 28 print edition.

Molecular HIV Data Overlaid on Spatial Accessibility Maps

Dr Tatem and his team performed a spatial analysis of the distribution of HIV for the years 1998 to 2008 to explore the impact of transportation networks and geography on the spread of HIV. Molecular data on specific HIV subtypes were obtained and analyzed in relation to "detailed and complete" spatial datasets on Africa-wide road networks.

In addition to roads, the data included a wide range of factors affecting "spatial accessibility," such as land cover, settlement locations, bodies of water, and topography. Sophisticated models were used to calculate not just the distance between locations, but also the ease of traveling from one place to another.

Even simply laying a chart of HIV sub
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Contact: Connie Hughes
Connie.Hughes@wolterskluwer.com
646-674-6348
Wolters Kluwer Health
Source:Eurekalert

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