Pediatric disease burden and vaccination recommendations: understanding local differences.

Area of Science:

• Public Health
• Vaccinology
• Epidemiology

Background:

• Diphtheria, tetanus, pertussis, hepatitis B, Haemophilus influenzae type b, and measles cause significant global health issues.
• These vaccine-preventable diseases contribute to substantial worldwide morbidity and mortality.

Purpose of the Study:

• To review geographic variations in disease burden for D, T, P, HepB, and Hib.
• To analyze vaccination coverage and recommendations across different World Health Organization (WHO) regions.
• To illustrate these differences using country-specific examples.

Main Methods:

• Comparative analysis of disease incidence and vaccination coverage data.
• Review of national vaccination schedules and recommendations.
• Geographic comparison across African, Americas, Mediterranean, South-East Asian, and Western Pacific WHO regions.

Main Results:

• Significant disparities in disease incidence and vaccination coverage were observed between countries.
• Low vaccination coverage for Hepatitis B and invasive Hib disease was noted in several WHO regions, particularly in Africa and South-East Asia.
• Some countries' vaccination schedules lacked or recently introduced HepB and Hib vaccines; DTwP-HepB-Hib combination vaccines are increasingly adopted.

Conclusions:

• Vaccination coverage and schedules differ significantly across countries, often influenced by available resources.
• DTwP-HepB-Hib combination vaccines are a cost-effective strategy to enhance vaccination coverage and compliance.
• These combination vaccines hold potential for substantially reducing the burden of these serious diseases.