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Related Concept Videos

Vaccinations01:51

Vaccinations

Overview
Cancer Vaccines01:30

Cancer Vaccines

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...
Microorganisms in Medicine and Therapeutics01:29

Microorganisms in Medicine and Therapeutics

Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
Vaccine Production01:23

Vaccine Production

Vaccine production involves a sequence of upstream and downstream processes to generate a safe and effective immunological product. It begins with cultivating microorganisms, such as viruses or bacteria, to obtain antigenic material. For viral vaccines, mammalian host cells are grown in bioreactors and subsequently infected with the target virus. The virus replicates within the host cells, which are lysed to release viral particles. This lysate is then clarified through filtration or...
Vaccines01:21

Vaccines

Vaccines are among the most effective tools in preventive medicine, designed to prepare the immune system to recognize and combat infectious agents. By introducing antigens—substances that the immune system identifies as foreign—vaccines stimulate an adaptive immune response that leads to immunological memory. This immunological memory enables the body to mount a faster and more effective response upon future exposures to the actual pathogen.Vaccines can be categorized based on the type of...
Smallpox01:24

Smallpox

Smallpox is a severe contagious disease caused by the Variola major virus, a double-stranded DNA member of the Poxviridae family.Variola major transmission occurs primarily via inhalation of virus-laden droplets or direct contact with infectious scabs. The incubation period averages approximately seven days, although it may range from 7 to 17 days depending on the inoculum and host factors.Clinically, the prodromal phase is marked by an abrupt onset of high fever, malaise, headache, and myalgia.

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Related Experiment Video

Updated: Jul 12, 2026

Expression and Purification of Virus-like Particles for Vaccination
06:17

Expression and Purification of Virus-like Particles for Vaccination

Published on: June 2, 2016

Vaccination today and tomorrow

F Brown1

  • 1Plum Island Animal Disease Center, Greenport, NY 11944, USA.

Bioscience Reports
|December 1, 1995
PubMed
Summary
This summary is machine-generated.

Traditional vaccines use weakened or inactivated pathogens. New molecular insights allow designing safer vaccines by targeting specific immune responses for protection against infectious diseases.

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Area of Science:

  • Immunology
  • Vaccinology
  • Molecular Biology

Background:

  • Current vaccines for infectious diseases are often derived from whole pathogens, inactivated or attenuated.
  • These empirical methods have yielded successful vaccines but carry inherent risks.
  • Advancements in molecular understanding of pathogens and immune responses are enabling new vaccine design strategies.

Purpose of the Study:

  • To explore the potential of designing novel vaccines based on molecular insights.
  • To move beyond traditional methods of using whole pathogens for vaccine preparation.
  • To identify specific immune responses that correlate with protection.

Main Methods:

  • Review of current vaccine preparation methods (inactivation, attenuation).
  • Analysis of molecular-level knowledge of infectious agents.
  • Investigation of the immune response to protein antigens.
  • Identification of correlates of protection.

Main Results:

  • Empirical vaccine approaches have been successful but are not ideal.
  • Molecular understanding offers opportunities for rational vaccine design.
  • Identifying immune responses linked to protection is crucial for this new approach.

Conclusions:

  • Designing vaccines using molecular targets is a promising future direction.
  • This approach could lead to safer and more effective vaccines.
  • Further research is needed to pinpoint protective immune responses.