We explore the transmission process for sexually transmitted diseases (STDs). We derive the classical frequency-dependent incidence mechanistically from a pair-formation model, using an approximation that applies to populations with rapid pairing dynamics (such as core groups or non-pair-bonding animals). This mechanistic derivation provides a framework to assess how accurately frequency-depend...

BACKGROUND In Australia, HIV is concentrated in men who have sex with men (MSM) and rates have increased steadily over the past ten years. Health promotion strategies should ideally be informed by an understanding of both the prevalence of the factors being modified, as well as the size of the risk that they confer. We undertook an analysis of the potential population impact and cost saving tha...

Background: Sexually transmitted infections are the most common human infections that lead to severe complications. Mycoplasma genitalium (MG) and Ureaplasma urealyticum (UU) are common and important cause of genitourinary tract infections. MG is a member of genital mycoplasmas which is emerging as an important causative agent of sexually transmitted infections both in males and females. This s...

Sexual concurrency refers to the situation where an individual has multiple sexual partnerships that overlap in time. In theory, and no doubt to some extent in practice, sexual concurrency is an important factor in the spread of sexually transmissible infections (STIs). For example, if an individual has concurrent relationships with three partners, should any one person in this arrangement be i...

The National Sexually Transmissible Infections Strategy 2005-2008, released in 2005, lists exploring and addressing barriers to enhanced data collection for chlamydia surveillance among the actions required for chlamydia control and prevention. This study describes a method of enhanced surveillance of sexually transmitted chlamydia notifications undertaken in South East Queensland, and the epid...

BACKGROUND Commercial sex workers within the population of men who have sex with men (MSM) in China, known as 'money boys' (MBs), are perceived to be at higher risk for HIV and other sexually-transmissible infections (STIs). METHODS We conducted a systematic review and meta-analyses from peer-reviewed literature accessed in two English (PubMed and Embase) and three Chinese databases (CNKI, CQ...

A cornerstone in the control of sexually transmissible infection (STIs) includes the testing and treatment of sexual partners of patients diagnosed with treatable STIs – widely referred to as partner notification or contact tracing. At its most basic level, partner notification simply involves a clinician discussing with a patient the need for partners to be tested and treated appropriately. Te...