Prevalence of cryptococcal antigen (CrAg) among HIV-positive patients in Eswatini, 2014–2015
African Journal of Laboratory Medicine
Field | Value | |
Title | Prevalence of cryptococcal antigen (CrAg) among HIV-positive patients in Eswatini, 2014–2015 | |
Creator | Haumba, Samson M. Toda, Mitsuru Jeffries, Rossana Ehrenkranz, Peter Pasipamire, Munyaradzi Ao, Trong Lukhele, Nomthandazo Mazibuko, Sikhathele Mkhontfo, Mandzisi Smith, Rachel M. Chiller, Tom | |
Description | Background: Cryptococcal meningitis is a leading cause of death amongst people living with HIV. However, routine cryptococcal antigen (CrAg) screening was not in the national guidelines in Eswatini.Objectives: A cross-sectional study was conducted between August 2014 and March 2015 to examine CrAg prevalence at Mbabane Government Hospital in Eswatini.Methods: We collected urine and whole blood from antiretroviral-therapy-naïve patients with HIV and a cluster of differentiation 4 (CD4) counts 200 cells/mm3 for plasma and urine CrAg lateral flow assay (LFA) screening at the national HIV reference laboratory. Two CD4 cut-off points were used to estimate CrAg prevalence: CD4 100 and 200 cells/mm3. Sensitivity and specificity of urine CrAg LFA was compared to plasma CrAg LFA.Results: Plasma CrAg prevalence was 4% (8/182, 95% confidence interval [CI]: 2–8) amongst patients with CD4 counts of 200 cells/mm3, and 8% (8/102, 95% CI: 3–15) amongst patients with CD4 counts of 100 cells/mm3. Urine CrAg LFA had a sensitivity of 100% (95% CI: 59–100) and a specificity of 80% (95% CI: 72–86) compared with plasma CrAg LFA tests for patients with CD4 200 cells/mm3. Forty-three per cent of 99 patients with CD4 100 were at World Health Organization clinical stages I or II.Conclusion: The prevalence of CrAg in Eswatini was higher than the current global estimate of 6% amongst HIV-positive people with CD4 100 cell/mm3, indicating the importance of initiating a national screening programme. Mechanisms for CrAg testing, training, reporting, and drug and commodity supply issues are important considerations before national implementation. | |
Publisher | AOSIS | |
Date | 2020-07-29 | |
Identifier | 10.4102/ajlm.v9i1.933 | |
Source | African Journal of Laboratory Medicine; Vol 9, No 1 (2020); 7 pages 2225-2010 2225-2002 | |
Language | eng | |
Relation |
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https://ajlmonline.org/index.php/ajlm/article/view/933/1545
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