Similarities and Dissimilarities of COVID-19 and Other Coronavirus Diseases

To Sing Fung1, Ding Xiang Liu1

  • 1Guangdong Province Key Laboratory of Microbial Signals and Disease Control and Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China;

Insights

Coronaviruses (CoVs) like SARS-CoV-2 constantly evolve, causing deadly zoonotic diseases. This review details CoV evolution, pathogenesis, and strategies for preventing and treating diseases like COVID-19.

Area of Science:

  • * Virology and Molecular Biology
  • * Infectious Diseases
  • * Public Health

Background:

  • * Three deadly zoonotic coronaviruses (CoVs) — SARS-CoV, MERS-CoV, and SARS-CoV-2 — have emerged in humans in under two decades.
  • * The COVID-19 pandemic highlights the continuous evolution and high pathogenicity of CoVs in humans.
  • * Understanding CoV molecular virology is crucial for managing emerging infectious diseases.

Purpose of the Study:

  • * To provide an overview of CoV diseases and molecular virology.
  • * To compare SARS-CoV-2 with other pathogenic and non-pathogenic CoVs.
  • * To discuss pathogenesis, host interactions, immune responses, and prevention/treatment strategies for CoV diseases.

Main Methods:

  • * Literature review of scientific publications on coronaviruses.
  • * Comparative analysis of molecular virology, pathogenesis, and host-virus interactions.
  • * Synthesis of current knowledge on prevention, treatment, antiviral, and vaccine development.

Main Results:

  • * Coronaviruses exhibit genetic malleability, enabling adaptation to humans and causing severe diseases.
  • * Pathogenesis and host immune responses vary among CoVs, influencing disease severity.
  • * Effective prevention and treatment strategies are essential for controlling CoV outbreaks.

Conclusions:

  • * Coronaviruses pose a significant and ongoing threat due to their evolutionary capacity.
  • * A comprehensive understanding of CoV biology is vital for developing effective countermeasures.
  • * Continued research into antivirals and vaccines is critical for future pandemic preparedness.

Related Concept Videos

Viral Mutations00:36

Viral Mutations

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...
37.5K
Correlations02:20

Correlations

Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
35.3K
Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

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,...
17.4K
Introduction to Virus01:28

Introduction to Virus

Viruses are unique biological entities that blur the boundary between living and non-living systems. Although they lack cellular structure and metabolic processes, they can exhibit characteristics of life when infecting a host. Their defining feature is a nucleic acid core, composed of either DNA or RNA, encapsulated within a protein coat called a capsid. This simple structure allows them to invade host cells and use their machinery for replication efficiently.Viral Structure and...
711
Viral Recombination00:57

Viral Recombination

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.
24.4K
What are Viruses?00:50

What are Viruses?

Overview
124.1K