Testing Guidance and Interpretation of Results for Healthcare Providers
Zika Virus Testing Guidance: Asymptomatic Pregnant Women
with Possible Zika Virus Exposure
Standard Operating Procedures | RBC/IHDPC/EID Division | 9/30/2011
PQDx 0033-013-00 WHO
PQ Public Report
July/2016, version 5.0
The purpose of this document is to provide guidance on the use of pooled sample testing strategy in coronavirus disease (COVID-19)
testing laboratories of the African Union Member States for scaling up SARS-CoV-2 nucleic acid testing capacity with the available resources. The current document descr...ibes the effect of factors such as the prevalence of COVID-19 in the population to be tested, the homogeneity of pools, and the sensitivity of the molecular test in optimal pool size determination. It also highlights the importance of monitoring the prevalence of COVID-19 in a population to be tested and proper validation of the test, to limit the potential for false-negative results. Validation studies to determine the optimal pool size by testing laboratories are recommended as the optimum approach. A safe, simple ‘two-stage pooling’ option has been indicated in this guidance to be used by laboratories until such validation can be achieved.
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Community Care Centres (CCCs) are small facilities (10 beds maximum), located within the community and run by community health workers. CCCs provide isolation facilities for Ebola patients in order to prevent further transmission of the virus within their households and communities. People with Ebol...a virus can also receive basic curative and palliative care in these centres in an environment supported by their family and communities. This document describes key principles and main considerations for implementation of a community approach.
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On the 31st December 2019, the World Health Organization (WHO) China country office reported a cluster of pneumonia cases in Wuhan City, Hubei Province of China now known to be caused by a novel virus. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been confirmed as the causative v...irus of Coronavirus disease 2019 (COVID-19). Cases have now been identified in over 100 countries including South Africa.
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Scientific brief
8 April 2020
Ade et al. BMC Health Services Research (2016) 16:5
Background: In the “Centre National Hospitalier de Pneumo-Phtisiologie” of Cotonou, Benin, little is known about
the characteristics of patients who have not attended their scheduled appointment, the results of tracing and the
possible b...enefits on improving treatment outcomes. This study aimed to determine the contribution of tracing
activities for those who missed scheduled appointments towards a successful treatment outcome.
Methods: A retrospective cohort study was carried out among all smear-positive pulmonary tuberculosis patients
treated between January and September 2013. Data on demographic and diagnostic characteristics and treatment
outcomes were accessed from tuberculosis registers and treatment cards. Information on those who missed their
scheduled appointments was collected from the tracing tuberculosis register. A univariate analysis was performed
to explore factors associated with missing a scheduled appointment
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