Based on data reported by countries in 2024 (2023 data), 94% of 194 WHO Member States reported vaccinating against COVID-19, 59% against seasonal influenza, 17% against pneumococcal disease, and 7% against herpes zoster. The map below shows the geographical distribution of countries reporting vaccination of older adults with these four vaccines as part of their national immunization schedules. Source: Global Status of Adult Immunization Post COVID-19 Pandemic - TechNet-21
Publications on older adult immunization
| Title | Author | Year | Type | Language |
|---|---|---|---|---|
| Vaccinating older adults against COVID-19 | World Health Organization (WHO) | 2023 | Guidance | English |
| Advancing vaccination strategies for older adults: insights into epidemiology, immunity and implementation | Adult Immunization Board (AIB) | 2025 | Report | English |
| WHO position paper on herpes zoster vaccines | World Health Organization (WHO) | 2025 | Guidance | English, French |