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Related Concept Videos

Rous Sarcoma Virus (RSV) and Cancer01:03

Rous Sarcoma Virus (RSV) and Cancer

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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...
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Cancer Vaccines01:30

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Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
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Vaccinations01:51

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Single Nucleotide Polymorphisms-SNPs01:05

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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,...
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Conjugated Proteins02:50

Conjugated Proteins

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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...
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Related Experiment Video

Updated: Oct 31, 2025

Live Imaging and Quantification of Viral Infection in K18 hACE2 Transgenic Mice Using Reporter-Expressing Recombinant SARS-CoV-2
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SARS-CoV-2 Vaccine.

Karrie Walker1

  • 1National Institute of Child Health and Human Development, Rockville, MD.

Global Reproductive Health
|June 30, 2021
PubMed
Summary
This summary is machine-generated.

Developing a safe and effective severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine is critical for global health. Vaccine clinical trials face inherent limitations and challenges during development.

Keywords:
COVID vaccineCoronavirus vaccineSARS-CoV-2 vaccine

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Area of Science:

  • Vaccinology
  • Infectious Diseases
  • Public Health

Background:

  • The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic necessitates rapid vaccine development.
  • Global vaccine availability is crucial for pandemic control.

Purpose of the Study:

  • To highlight the importance of safe and effective vaccine development for SARS-CoV-2.
  • To acknowledge the challenges in COVID vaccine clinical trials.

Main Methods:

  • Review of current vaccine development landscape.
  • Analysis of common challenges in vaccine clinical trials.

Main Results:

  • Multiple SARS-CoV-2 vaccine candidates are in development.
  • Vaccine development is subject to standard clinical trial limitations.

Conclusions:

  • Accelerated vaccine development is essential.
  • Addressing clinical trial challenges is key to timely vaccine availability.