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Evaluation of Host-Pathogen Responses and Vaccine Efficacy in Mice
Published on: February 22, 2019
[The return of pertussis]
Abstract:
Pertussis (whooping cough) is a contagious respiratory tract bacterial infection due to Bordetella pertussis who makes global comeback despite routine vaccination. Bordetella pertussis produces a series of virulence factors that are involved in one of several steps of the pathogenesis of whooping cough (adhesins, toxins). Unusual presentations are now most common. Clinical diagnosis of whooping cough is often difficult, and microbiologic evaluation is helpful. Treatment is based on antibiotherapy and sometimes intensive care management. Complications are most common in children younger than 6 months (death, malignant pertussis, respiratory and neurological complications). Pertussis can be controlled by treatment of exposed people and by vaccination.
Insights
Pertussis, a bacterial respiratory infection, is resurging globally despite routine vaccination. Early diagnosis and treatment, including antibiotics and supportive care, are crucial for managing this contagious disease.
Area of Science:
- Infectious Diseases
- Microbiology
- Pediatrics
Background:
- Pertussis (whooping cough) is a highly contagious bacterial respiratory infection caused by Bordetella pertussis.
- Despite widespread vaccination programs, pertussis is experiencing a global resurgence.
Observation:
- Bordetella pertussis employs various virulence factors, including adhesins and toxins, to facilitate infection.
- Clinical presentation of pertussis is often atypical, complicating diagnosis.
- Microbiologic evaluation is essential for accurate diagnosis.
Findings:
- Treatment strategies involve antibiotherapy and, in severe cases, intensive care management.
- Complications, such as death, malignant pertussis, and neurological issues, disproportionately affect infants under six months.
- Control measures include prompt treatment of infected individuals and vaccination.
Implications:
- The resurgence highlights the need for ongoing surveillance and potential updates to vaccination strategies.
- Understanding pertussis pathogenesis and virulence factors is key to developing improved diagnostics and therapeutics.
- Effective management requires a combination of medical intervention and public health strategies to curb transmission.
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