Diagnosing norovirus-associated infectious intestinal disease using viral load (2009)
Phillips, Gemma, Lopman, Ben, Tam, Clarence C, Iturriza-Gomara, Miren, Brown, David, Gray, Jim
Abstract Background Reverse transcription-polymerase chain reaction (RT-PCR) is the main method for laboratory diagnosis of norovirus-associated infectious intestinal disease (IID). However, up to...
Estimating Incidence from Prevalence in Generalised HIV Epidemics: Methods and Validation (2008)
Timothy B. Hallett, Basia Zaba, Jim Todd, Ben Lopman, Wambura Mwita, Sam Biraro, ...
BackgroundHIV surveillance of generalised epidemics in Africa primarily relies on prevalence at antenatal clinics, but estimates of incidence in the general population would be more useful. Repeated...
Lopman, Ben, Nyamukapa, Constance, Mushati, Phyllis, Mupambireyi, Zivai, Mason, Peter, Garnett, Geoff P, ...
Background In recent years, HIV prevalence has begun to decline in Zimbabwe, which has been associated with reductions in sexual risk behaviour. Here, we analyse the determinants of HIV incidence in...
The Evolution of Norovirus, the “Gastric Flu”
Lopman, Ben, Zambon, Maria, Brown, David W
The authors discuss the implications of a new study that presents compelling data to show that norovirus evolution is driven by immune selection pressure.
When Did HIV Incidence Peak in Harare, Zimbabwe? Back-Calculation from Mortality Statistics
HIV prevalence has recently begun to decline in Zimbabwe, a result of both high levels of AIDS mortality and a reduction in incident infections. An important component in understanding the dynamics...
Gregson, Simon, Nyamukapa, Constance, Lopman, Ben, Mushati, Phyllis, Garnett, Geoffrey P., Chandiwana, Stephen K., ...
Early mathematical models varied in their predictions of the impact of HIV/AIDS on population growth from minimal impact to reductions in growth, in pessimistic scenarios, from positive to negative...
Estimating Incidence from Prevalence in Generalised HIV Epidemics: Methods and Validation
Hallett, Timothy B, Zaba, Basia, Todd, Jim, Lopman, Ben, Mwita, Wambura, Biraro, Sam, ...
Timothy Hallett and colleagues develop and test two user-friendly methods to estimate HIV incidence based on changes in cross-sectional prevalence, using either mortality rates or survival after...