Worldwide, men who have sex with men (MSM) remain one of the most HIV-vulnerable
community populations. A global public health priority is developing new methods of …

Driven in part by recent research in the epidemiology and prevention of human
immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) and other …

Inspired by empirical studies of networked systems such as the Internet, social networks,
and biological networks, researchers have in recent years developed a variety of techniques …

We systematically reviewed reports about determinants of HIV infection in injecting drug
users from 2000 to 2009, classifying findings by type of environmental influence. We then …

The OPTN defines high risk donors (HRDs), colloquially known as 'CDC high risk donors', as
those thought to carry an increased risk of HIV window period (WP) infection prior to …

While much social network data exists online, key network metrics for high-risk populations
must still be captured through self-report. This practice has suffered from numerous …

Objective: The objective of this study was to examine the relationship between social
distance (measured as the geodesic, or shortest distance, between 2 people in a connected …

Within the next 30 years, the proportion of urban dwellers will rise from under half to two
thirds of the world's population. Such a shift will entail massive public health consequences …

Objective: The objective of this study was to examine correlates of sexual risk among
injection drug users (IDUs). Study: A total of 1445 IDUs were recruited from California …

Social network data must accurately reflect actors' relationships to properly estimate network
features. Here, we examine multiple reports of sexual, drug-sharing and social tie data on …