[New Swiss recommendations for adult boosters against pertussis, tetanus and diphtheria]

Area of Science:

• Public Health
• Immunology
• Epidemiology

Context:

• Pertussis (whooping cough) remains highly prevalent in Switzerland, with approximately 4000 cases annually.
• Infants are particularly vulnerable, with 80% contracting the disease from family members.
• Existing immunization schedules require review to optimize protection against preventable diseases.

Purpose:

• To revise and optimize the Swiss immunization schedule for diphtheria, tetanus, and pertussis (dTpa).
• To enhance protection for infants and adults against pertussis transmission within family and social networks.
• To align vaccination recommendations with current epidemiological evidence and reduce unnecessary immunizations.

Summary:

• The updated Swiss immunization plan recommends a diphtheria-tetanus-pertussis (dTpa) booster at age 25 (catch-up 26-29 years) and for adults in contact with infants under six months.
• Diphtheria-tetanus (dT) boosters are recommended every 20 years (at ages 25, 45, and 65), with a 10-year interval after age 65.
• This revised schedule aims to improve pertussis control and prevent infant infections, while optimizing tetanus and diphtheria booster intervals.

Impact:

• Reduced incidence of pertussis, particularly among vulnerable infant populations.
• Improved herd immunity and decreased disease transmission within communities.
• More efficient and evidence-based vaccination strategies, potentially increasing vaccine uptake and adherence.