Related Experiment Video
Updated: Dec 24, 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
Coronaviruses and SARS-COV-2
Mustafa Hasöksüz1, Selçuk Kiliç2, Fahriye Saraç3
1Department of Virology, Faculty of Veterinary Medicine, Istanbul University-Cerrahpaşa, İstanbul, Turkey
Turkish Journal of Medical Sciences
|April 16, 2020
Summary
Coronaviruses cause various animal and human diseases. The emergence of SARS-CoV-2 causing COVID-19 has led to a global pandemic with millions of cases and fatalities.
Area of Science:
- Virology
- Epidemiology
- Public Health
Background:
- Coronaviruses (CoVs) are a diverse group of viruses known to cause a range of illnesses in animals and humans, from common colds to severe respiratory diseases.
- Human coronavirus (HCoV) infections include common cold viruses (HCoV 229E, NL63, HKU1, OC43) and more severe pathogens like SARS-CoV and MERS-CoV.
Purpose of the Study:
- To provide an overview of coronaviruses, their impact on health, and the emergence of SARS-CoV-2.
- To document the initial spread and impact of COVID-19.
Main Methods:
- Literature review of coronavirus characteristics and known human infections.
- Analysis of epidemiological data for the initial COVID-19 outbreak.
Main Results:
- Coronaviruses cause significant enteric, respiratory, and systemic diseases in various hosts.
- The novel SARS-CoV-2 emerged in late 2019, causing the COVID-19 pandemic.
- By April 10, 2020, COVID-19 had resulted in over 1.7 million confirmed cases and 105,000 deaths globally.
Conclusions:
- Coronaviruses represent a significant threat to both animal and human health.
- The rapid global spread of SARS-CoV-2 highlights the need for effective public health surveillance and response strategies.
Related Concept Videos
Viruses with RNA Genomes
603
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...
603
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
Rous Sarcoma Virus (RSV) and Cancer
6.0K
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
6.0K
Single Nucleotide Polymorphisms-SNPs
17.7K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
17.7K
Conjugated Proteins
25.9K
Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
25.9K
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

