2024年4月4日 · This article discusses how viruses mutate, how mutation can affect vaccines, and what viral mutation means as it relates to COVID-19.

Our current knowledge of viral mutation rates indicates that viral genetic diversity is determined by multiple virus- and host-dependent processes, and that viral mutation rates can evolve in response to specific selective pressures.

2025年1月17日 · Genetic Variability and Mutation. Viruses exhibit an astounding capacity for genetic variability, a characteristic that significantly contributes to their persistence and adaptability. This variability largely stems from mutations, which are spontaneous changes in the viral genome. Such mutations can result from errors during replication ...

2021年7月19日 · Virus variants themselves are not unexpected—viruses mutate frequently, and occasionally a new form provides enough viral advantages that it can take hold and spread throughout a community.

Influenza viruses change in two main ways, antigenic drift and antigenic shift. A comparison of the similarities and differences between coronaviruses and flu viruses may help us understand how those similarities and differences could impact potential COVID-19 vaccines.

Viruses are submicroscopic, obligate intracellular parasites that carry either DNA or RNA as their genome, protected by a capsid. Viruses are genetic entities that propagate by using the metabolic and biosynthetic machinery of their hosts and many of them cause sickness in the host.

2021年6月9日 · As the COVID-19 pandemic continues, new variants of the SARS-CoV-2 virus pop up, and some lead to increasing infections. The main new variants—named Alpha, Beta, and Delta and first identified in Britain, South Africa, and India, respectively—have properties that make them more successful in transmitting and replicating than the original virus.

Mutations in the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) occur spontaneously during replication. Thousands of cumulative mutations have occurred since the emergence of the virus [1]. As novel mutations continue to emerge, naturally, new mutants are increasingly observed.

2023年2月8日 · Virus mutation is one of the most compelling arguments for viruses to be classed as living organisms. As with any mutation, some changes will provide a benefit that leads to more efficient reproduction.

Our current knowledge of viral mutation rates indicates that viral genetic diversity is determined by multiple virus- and host-dependent processes, and that viral mutation rates can evolve in response to specific selective pressures.