Related Experiment Video
Updated: Dec 22, 2025

08:41
Live Imaging and Quantification of Viral Infection in K18 hACE2 Transgenic Mice Using Reporter-Expressing Recombinant SARS-CoV-2
Published on: November 5, 2021
3.2K
Summary
The Democratic Republic of the Congo reported new Ebola virus disease (EVD) cases amid the COVID-19 pandemic. This marks the first EVD detection in months, highlighting ongoing public health challenges.
Area of Science:
- Epidemiology
- Infectious Diseases
- Public Health
Background:
- The COVID-19 pandemic presents a complex global health crisis.
- The Democratic Republic of the Congo has a history of Ebola virus disease (EVD) outbreaks.
- Co-occurring infectious disease outbreaks strain public health resources.
Purpose of the Study:
- To report the detection of new Ebola virus disease cases.
- To highlight the emergence of EVD in the context of the COVID-19 pandemic.
Main Methods:
- Case detection and reporting by health authorities.
- Epidemiological surveillance.
Main Results:
- New cases of Ebola virus disease have been confirmed.
- This is the first detection of EVD in several months.
Conclusions:
- The Democratic Republic of the Congo faces a dual threat from COVID-19 and Ebola.
- Continued vigilance and public health interventions are crucial to manage EVD outbreaks.
Related Concept Videos
Viral Recombination
24.7K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
24.7K
Viruses with RNA Genomes
594
RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
594
Leaky Scanning
5.5K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.5K
Subviral Agents
385
Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
385
Cross-reactivity
32.7K
Overview
32.7K
Viral Mutations
39.4K
A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material...
39.4K

