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Persistence and clearance of Ebola virus RNA from seminal fluid of Ebola virus disease survivors: a longitudinal analysis and modelling study  Daouda.

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Presentation on theme: "Persistence and clearance of Ebola virus RNA from seminal fluid of Ebola virus disease survivors: a longitudinal analysis and modelling study  Daouda."— Presentation transcript:

1 Persistence and clearance of Ebola virus RNA from seminal fluid of Ebola virus disease survivors: a longitudinal analysis and modelling study  Daouda Sissoko, MD, Sophie Duraffour, PhD, Romy Kerber, PhD, Jacques Seraphin Kolie, MD, Abdoul Habib Beavogui, PhD, Alseny- Modet Camara, MD, Géraldine Colin, PharmD, Toni Rieger, PhD, Lisa Oestereich, PhD, Bernadett Pályi, MSc, Stephanie Wurr, Jeremie Guedj, PhD, Thi Huyen Tram Nguyen, PhD, Rosalind M Eggo, PhD, Conall H Watson, MFPH, W John Edmunds, PhD, Joseph Akoi Bore, MSc, Fara Raymond Koundouno, MSc, Mar Cabeza-Cabrerizo, MSc, Lisa L Carter, PhD, Liana Eleni Kafetzopoulou, MSc, Eeva Kuisma, PhD, Janine Michel, PhD, Livia Victoria Patrono, PhD, Natasha Y Rickett, MRes, Katrin Singethan, PhD, Martin Rudolf, PhD, Angelika Lander, Elisa Pallasch, Sabrina Bockholt, Estefanía Rodríguez, PhD, Antonino Di Caro, MD, Roman Wölfel, MD, Martin Gabriel, MD, Céline Gurry, Pierre Formenty, DVM, Sakoba Keïta, MD, Denis Malvy, PhD, Miles W Carroll, PhD, Xavier Anglaret, PhD, Dr Stephan Günther, MD  The Lancet Global Health  Volume 5, Issue 1, Pages e80-e88 (January 2017) DOI: /S X(16) Copyright © 2017 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY license Terms and Conditions

2 Figure 1 Kinetics of Ebola virus RNA clearance from blood, seminal fluid, and urine Ct=threshold cycle. Ct value is an inverse measure of the viral load in the body fluids. Negative PCR results are shown below the dotted horizontal lines drawn around the maximum Ct that can technically be measured. For the modelling, the Ct for negative PCR results was set at >37 cycles, which approximates the 95%-detection limit of the PCR assay. Patient identification numbers are shown in bold above each plot. Red and blue crosses show positive and negative results, respectively, of virus infectivity testing in SCID mice using seminal fluid samples from patients 1–8. The Lancet Global Health 2017 5, e80-e88DOI: ( /S X(16) ) Copyright © 2017 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY license Terms and Conditions

3 Figure 2 Proportion, over time, of male survivors of Ebola virus disease who shed PCR-detectable Ebola virus RNA in seminal fluid Data are means and shaded area shows 90% prediction interval [PI]. The Lancet Global Health 2017 5, e80-e88DOI: ( /S X(16) ) Copyright © 2017 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY license Terms and Conditions

4 Figure 3 Predicted number of men with PCR-detectable Ebola virus RNA in seminal fluid, July 2014 to January 2016 Shading shows 95% CI. Predicted values rely not only on accurate EVD incidence data, but also on assumptions of constant survival rates, as well as statistical uncertainty in the fitting procedure. Therefore, point estimates should be interpreted with care, and attention given to the wide CIs. The Lancet Global Health 2017 5, e80-e88DOI: ( /S X(16) ) Copyright © 2017 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY license Terms and Conditions


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