Related Experiment Video
Updated: Jan 19, 2026

Evaluation of Host-Pathogen Responses and Vaccine Efficacy in Mice
Published on: February 22, 2019
Pertussis Toxin: A Key Component in Pertussis Vaccines?
Kelsey A Gregg1, Tod J Merkel2
1Division of Bacterial, Parasitic and Allergenic Products, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, MD 20993, USA. Kelsey.Gregg@fda.hhs.gov.
Pertussis toxin (PT) is essential for whooping cough pathogenesis and can prevent disease when used in vaccines. Further research is needed to understand PT
Area of Science:
- Microbiology
- Immunology
- Vaccinology
Background:
- Pertussis, caused by *Bordetella pertussis*, is re-emerging globally.
- Current acellular pertussis (aP) vaccines show faster waning immunity compared to whole-cell (wP) vaccines.
- Understanding pertussis toxin (PT) is crucial for developing improved vaccines and treatments.
Purpose of the Study:
- To review the role of pertussis toxin (PT) in *Bordetella pertussis* pathogenesis.
- To evaluate the evidence for PT's protective role in whooping cough vaccines.
- To identify knowledge gaps regarding PT's contribution to disease and immunity.
Main Methods:
- Literature review of scientific studies on pertussis toxin.
- Analysis of clinical data and vaccine efficacy studies.
- Synthesis of existing research on PT's role in pathogenesis and protection.
Main Results:
- Pertussis toxin is a key virulence factor and essential for *B. pertussis* pathogenesis.
- Clinical data suggest PT is protective when included in vaccine formulations.
- Immunity against PT is critical for preventing pertussis disease.
Conclusions:
- Pertussis toxin plays a central role in whooping cough and vaccine-induced protection.
- Further research is necessary to fully elucidate PT's function in disease and immunity.
- This knowledge will guide the development of next-generation pertussis vaccines and therapies.
More Related Videos
Related Concept Videos
Vaccinations
Microorganisms in Medicine and Therapeutics
Types of Toxins
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Fusion of Secretory Vesicles with the Plasma Membrane
In 1993, Jim Rothman proposed that the antiparallel pairing of vesicular and transmembrane SNAREs, or...
Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin
The binding of dantrolene to the RYR1...

