Concept maps

ARV for HIV prevention, an overview

Despite the interesting results of an HIV vaccine trial in Thailand (RV144), HIV prevention is still limited to a small number of options many of which are not bullet-proof. Biomedical interventions based on vaccines and microbicides are still a long shot away. Conversely, treatment is working well in bringing HIV-infected Read more…

By Roger, ago
Concept maps

PrEP, An Overview

Pre-exposure prophylaxis (PrEP) is an experimental HIV-prevention strategy that proposes using antiretrovirals (ARVs) to reduce the risk of HIV infection in healthy uninfected people at risk of acquiring the virus. PrEP is not proven to work and is currently being tested in HIV-negative people in several clinical trials across the Read more…

By Roger, ago
Concept maps

Barriers to condom use

To use or not to use a condom for sexual intercourse is the result of a combination of several interacting factors. From the rational decision to choose not to use condoms to that of not being able to choose to use them, there is a broad range of possible accounts. Read more…

By Roger, ago
Concept maps

Biological Factors Affecting HIV Infection

Conditions Affecting HIV Transmission v2Several factors are important in determining if the HIV virus can be passed from an infected person to another one. These include biological and social factors which both relate to the exposed and the “infector” individuals.

This conceptual framework summarises only the biological factors that influence HIV transmission. When assessing the risk of infection, each should be considered in turn and as a whole.

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By Roger, ago
Concept maps

HIV Prevention, an Overview

HIV prevention goes far beyond the simplistic ABC message that hijacks most of the media attention. This figure tries to illustrate the breadth and diversity of the field of HIV prevention (Click to enlarge). It would still need to be further expanded to really cover all the aspects of an Read more…

By Roger, ago
Selected writings

Challenges facing the UK Research Base

The academic year 2007 started with a “Time Bomb” uncovered by the Higher Education Policy Institute (HEPI): student in England are having it the easy way with an average of 26 hours a week spent studying compared to 30 in Ireland, 35 in France and 41 in Portugal. Variations are wide depending on the subject but with less than 15 hours of tuition a week, fears and concerns are raised that Higher Education is going down the drain and will have serious academic consequences for the future of Science in the UK. (more…)

By Roger, ago