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Related Concept Videos

Vaccinations01:51

Vaccinations

Overview
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...
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.
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.
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...
Poliomyelitis01:17

Poliomyelitis

Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...

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A human epithelial co-culture system reveals distinct host cell interaction behaviours for Treponema pallidum.

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Membrane protein solubilization and structure determination using de novo-designed proteins.

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High-throughput profiling of the IgG and IgA response to the <i>Treponema pallidum</i> subsp. <i>pallidum</i> proteome in syphilis patients.

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Related Experiment Video

Updated: Jul 2, 2026

Production of E. coli-expressed Self-Assembling Protein Nanoparticles for Vaccines Requiring Trimeric Epitope Presentation
10:58

Production of E. coli-expressed Self-Assembling Protein Nanoparticles for Vaccines Requiring Trimeric Epitope Presentation

Published on: August 21, 2019

Advancements in Syphilis Vaccine Development.

Lorenzo Giacani1,2, Caroline E Cameron1,3, Feijun Zhao4,5

  • 1From the Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington.

Sexually Transmitted Diseases
|July 1, 2026
PubMed
Summary

Scientists are making progress on a global syphilis vaccine by identifying key antigens and developing chimeric vaccine candidates. Research highlights promising surface proteins and delivery platforms, aiming for effective syphilis prevention.

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Fabrication of Pulsatile Polymeric Microparticles Encapsulating Rabies Antigen

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Area of Science:

  • Infectious Diseases
  • Vaccinology
  • Microbiology

Background:

  • Syphilis remains a significant global health concern, necessitating the development of a broadly effective vaccine.
  • Historical research demonstrated that antibodies played a role in protective immunity against syphilis.

Purpose of the Study:

  • To summarize recent advances in syphilis vaccine development presented at the Shanghai International Syphilis Symposium.
  • To highlight key research findings in antigen selection, epitope identification, and vaccine platform development.

Main Methods:

  • Review of research on antigen selection, including outer membrane proteins of *Treponema pallidum*.
  • Application of high-throughput immunological, proteomic, and genomic techniques to identify potential vaccine targets.
  • Exploration of chimeric vaccine candidates, delivery platforms, and manufacturing considerations.

Main Results:

  • Identification of surface-exposed epitopes on *Treponema pallidum* outer membrane proteins with potential vaccine utility.
  • Development of multiple chimeric vaccine designs and delivery platforms suitable for manufacturing.
  • Ongoing efforts to identify and incorporate clinically approved adjuvants.

Conclusions:

  • Significant scientific progress has been made towards a globally efficacious syphilis vaccine.
  • Chimeric vaccine candidates utilizing identified epitopes show promise but require further validation.
  • Advancements in technology are crucial for overcoming remaining challenges in syphilis vaccine development.