For the molecular diagnosis of Chagas disease by real-time PCR (polymerase chain reaction), optimization of diagnostic accuracy is desirable. The detection limit of real-time PCR assays for the diagnosis of Trypanosoma cruzi in human serum is affected by various influences including the choice of th...e nucleic acid extraction assay. In this study, three nucleic acid extraction assays were compared regarding their influence on the sensitivity of a T. cruzi-specific real-time PCR with 62 reference sera containing T. cruzi target DNA (deoxyribonucleotide acid). More than 95% of the positive sera were correctly identified after all three nucleic acid extraction strategies with a detection rate ranging from 96.8% (60/62) for the worst assay to 100% (62/62) for the best one. A matched pairs analysis for the comparison of the cycle threshold (Ct) values obtained with the 59 reference samples with positive real-time PCR results after all three nucleic acid extraction schemes indicated differences in a range of about 3 Ct steps. Summarized, all three compared nucleic acid extraction schemes were basically suitable for T. cruzi-specific PCR from serum with some minor differences. However, in the case of low quantities of circulating parasite DNA in the serum of a patient with Chagas disease, even minor effects can make a difference in the individual diagnosis.
more
This resource on Monitoring and Evaluating Digital Health Interventions provides step-wise guidance to improve the quality and value of monitoring and evaluation (M&E) efforts in the context of digital health interventions, also commonly referred to as mHealth or eHealth interventions. This Guide i...s intended for implementers and researchers of digital health activities, as well as policy-makers seeking to understand the various stages and opportunities for systematically monitoring implementation fidelity and for evaluating the impact of digital health interventions.
more
The COVID-19 Strategic Preparedness and Response Plan (SPRP) 2021 Monitoring and Evaluation Framework tracks global progress against the COVID-19 SPRP 2021 for the ten pillars of the public health response. The operational intelligence complements the epidemiologic information used to drive a global... dynamic system of support and response. Monitoring SPRP 2021 implementation will support countries, partners and WHO in strategic thinking, operational tracking and course correction based on evidence and transparency to strengthen the response to COVID-19.
more
Guide for coordinators and data collectors - The WHO Operational Package for Assessing, Monitoring and Evaluating Country Pharmaceutical Situations is intended as a useful tool for researchers, policy-makers, planners and others who need to use standardized measurement tools to gather data and other... information. In addition, the operational package can be used by international agencies and donors, by professional groups and nongovernmental organizations (NGOs).
more
Original research article
Contraception 97 (2018) 439–444
https://doi.org/10.1016/j.contraception.2018.01.003
0010-7824/© 2018 The Authors. Published by Elsevier Inc.
Handout presentations in PDF for illustrating lectures
Accessed May 2014
Procedures Manual - Medicines registration in Madagascar - 2016 version
Powerpoint Presenation for Training
21 January 2022
The overall threat posed by Omicron largely depends on four key questions: (i) how transmissible the variant is; (ii) how well vaccines and prior infection protect against infection, transmission, clinical disease and death; (iii) how virulent the variant is compared to other varian...ts; and (iv) how populations understand these dynamics, perceive risk and follow control measures, including public health and social measures (PHSM).
more
The Essential Nutrition Actions and Essential Hygiene Actions Training Guide: Community Workers strengthens the capacity of community workers to deliver and promote the essential nutrition and hygiene actions. It introduces technical content within hands-on sessions to practice counseling and negoti...ation, using role plays and field practice. It guides community workers in understanding why and how to integrate messages on nutrition and hygiene into their different program platforms using a life cycle approach to deliver the right message to right person at the right time.
more