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This report investigates the impact of potential misclassification of samples on HIV prevalence estimates for 23 surveys conducted from 2010-2014. In addition to visual inspection of laboratory results, we examined how accounting for potential miscl
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assification of HIV status through Bayesian latent class models affected the prevalence estimates. Two types of Bayesian models were specified: a model that only uses the individual dichotomous test results and a continuous model that uses the quantitative information of the EIA (i.e., the signal-to-cutoff values). Overall, we found that adjusted prevalence estimates matched the surveys’ original results, with overlapping uncertainty intervals. This suggested that misclassification of HIV status should not affect the prevalence estimates in most surveys. However, our analyses suggested that two surveys may be problematic. The prevalence could have been overestimated in the Uganda AIDS Indicator Survey 2011 and the Zambia Demographic and Health Survey 2013-14, although the magnitude of overestimation remains difficult to ascertain. Interpreting results from the Uganda survey is difficult because of the lack of internal quality control and potential violation of the multivariate normality assumption of the continuous Bayesian latent class model. In conclusion, despite the limitations of our latent class models, our analyses suggest that prevalence estimates from most of the surveys reviewed are not affected by sample misclassification.
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ECDC MISSION REPORT 19–21 September 2016 ; 14–15 November 2016
Saudi Journal of Biological Sciences. http://dx.doi.org/10.1016/j.sjbs.2016.03.006
Open Access
WHO’s antiretroviral treatment (ART) clinic-based acquired drug resistance survey method yields robust estimates of HIV viral suppression and acquired HIV drug resistance in adults, children and a
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dolescents taking both dolutegravir and non-dolutegravir based regimens.
Results are used to inform ART programme decision making regarding optimal ART regimens and support evaluation of programme quality with respect to maximizing viral load suppression and minimizing emergence of resistance in people taking ART.
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The target audience for this guideline is primarily for health care providers nurses, doctors, social workers and other people involved in HIV response in Rwanda so that they are capable of offering quality care services to patients over a long time
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. The new National Guidelines for Prevention and Management of HIV and STIs are articulated in accordance to treat all HIV+ patients regardless of CD4 count and a new service delivery model to support its implementation.
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Time for recognition of lay counsellors
Accessed November 2017
Surveillance Report
