Interpretation of Negative Molecular Test Results in Patients With Suspected or Confirmed Ebola Virus Disease: Report of Two Cases.

Open Forum Infect Dis

Médecins Sans Frontières , Operational Center of Brussels , Belgium ; Department of Critical Care Medicine, Clinical Center , National Institutes of Health, Bethesda , Maryland.

Published: December 2015

Quantitative reverse-transcription polymerase chain reaction (qRT-PCR) is the most sensitive quantitative diagnostic assay for detection of Ebola virus in multiple body fluids. Despite the strengths of this assay, we present 2 cases of Ebola virus disease (EVD) and highlight the potential for false-negative results during the early and late stages of EVD. The first case emphasizes the low negative-predictive value of qRT-PCR during incubation and the early febrile stage of EVD, and the second case emphasizes the potential for false-negative results during recovery and late neurologic complications of EVD. Careful interpretation of test results are needed to guide difficult admission and discharge decisions in suspected or confirmed EVD.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4621457PMC
http://dx.doi.org/10.1093/ofid/ofv137DOI Listing

Publication Analysis

Top Keywords

ebola virus
12
suspected confirmed
8
virus disease
8
potential false-negative
8
case emphasizes
8
evd
5
interpretation negative
4
negative molecular
4
molecular test
4
test patients
4

Similar Publications

Objectives: Assess the effectiveness of ring vaccination in controlling an Ebola virus outbreak in the Democratic Republic of Congo.

Methods: This analysis focuses on two areas of the Democratic Republic of Congo, Beni and Butembo/Katwa, which were affected during the 2018-2020 Ebola outbreak. To simulate Ebola virus transmission, we used a spatially explicit agent-based model with households, health care facilities, and Ebola treatment units.

View Article and Find Full Text PDF

The recent outbreak of Marburg virus (MARV) in Rwanda underscores the need for effective countermeasures against this highly fatal pathogen, with case fatality rates reaching 90%. Currently, no vaccines or approved treatments exist for MARV infection, distinguishing it from related viruses like Ebola. Our research demonstrates that the oral drug obeldesivir (ODV), a nucleoside analog prodrug, shows promising antiviral activity against filoviruses in vitro and offers significant protection in animal models.

View Article and Find Full Text PDF
Article Synopsis
  • Ebola virus (EBOV) is a highly deadly RNA virus that currently lacks effective treatments or vaccines, necessitating the urgent need for new therapeutic solutions.
  • In this study, researchers used in silico methods to evaluate natural products from traditional Chinese medicine against four critical EBOV proteins, employing molecular docking to assess their potential effectiveness.
  • The findings identified eight promising compounds with strong inhibitory effects on EBOV proteins, indicating their potential as antiviral agents due to their favorable interaction with protein residues and acceptable pharmacokinetic profiles.
View Article and Find Full Text PDF

Simultaneous Blockade of CD209 and CD209L by Monoclonal Antibody Does Not Provide Sufficient Protection Against Multiple Viral Infections In Vivo.

Immunology

January 2025

The Key Laboratory for Human Disease Gene Study of Sichuan Province, Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.

Many virus species, including Ebola virus, Marburg virus, SARS-CoV-2, dengue virus (DENV) and Zika virus (ZIKV), exploit CD209 and CD209L as alternative or attachment receptors for viral cis- or trans-infection. Thus, CD209 and CD209L may be critical targets for the development of therapeutic monoclonal blocking antibody drugs to disrupt the infection process caused by multiple viruses. Here, we produced a human chimeric monoclonal blocking antibody that simultaneously blocks CD209 and CD209L, namely 7-H7-B1.

View Article and Find Full Text PDF

Background: Ugandan health authorities declared an outbreak of Ebola disease (EBOD), caused by the Sudan virus, in September 2022. A rapid review was conducted to update the Public Health Agency of Canada's guidelines for infection prevention and control measures for EBOD in healthcare settings to prepare for potential introduction of cases.

Objective: Summarize the available evidence on personal protective equipment (PPE) use by healthcare workers (HCWs) to prevent exposure to and transmission of viral hemorrhagic fevers (VHFs), including Ebola virus.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!