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Related Concept Videos

Vaccinations01:51

Vaccinations

Overview
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...
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...
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.

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Fabrication of Pulsatile Polymeric Microparticles Encapsulating Rabies Antigen
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"IDEAL" vaccines for resource poor settings.

Myron M Levine1

  • 1Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, MD 21201, USA. mlevine@medicine.umaryland.edu

Vaccine
|April 11, 2012
PubMed
Summary
This summary is machine-generated.

Developing effective single-dose vaccines without cold chain requirements is crucial for global immunization. Modern adjuvants and needle-free delivery methods are key to achieving long-term immunity and identifying vaccinated individuals.

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Area of Science:

  • Immunology
  • Vaccinology
  • Public Health

Background:

  • Current vaccine delivery in developing nations faces challenges in efficiency, safety, and cost.
  • Achieving long-term protection with a single dose, without cold chain, and with a reliable marker of immunization is a significant goal.

Purpose of the Study:

  • To explore strategies for developing advanced vaccines that meet the needs of developing countries.
  • To identify methods for enhancing vaccine immunogenicity and stability while enabling needle-free administration and post-vaccination identification.

Main Methods:

  • Investigating the role of potent parenteral and mucosal adjuvants to boost immune responses to less immunogenic antigens.
  • Exploring needle-free immunization techniques, including mucosal (oral, nasal) and transcutaneous routes, as well as needle-free injection devices.
  • Examining technologies like vitrification for temperature-independent vaccine stability.

Main Results:

  • Emerging understanding of innate immune system modulation is guiding the development of novel adjuvants.
  • Needle-free administration routes offer potential for improved vaccine delivery.
  • Vitrification can create vaccines resistant to extreme temperatures.

Conclusions:

  • Potent adjuvants and innovative delivery systems are essential for single-dose, long-term protection vaccines.
  • Needle-free immunization and temperature-stable formulations can significantly improve vaccine accessibility and efficacy.
  • Development of biomarkers is needed to confirm successful immunization.