Table 3 Timing and amplitude of influenza peaks by country and comparison with recommended timing of influenza vaccination
Influenza transmission zone/country | Primary peak | Secondary peak | Recommended vaccination timing | Appropriateness of recommended vaccination timing a | ||
|---|---|---|---|---|---|---|
Timing | Amplitude | Timing | Amplitude | |||
Southern Asia | ||||||
Bangladesh | Jul | 97.70% | Jan | 0.30% | April | Appropriate |
India | Mar | 105.20% | Aug | 87.90% | April | Uncertain |
Iran | Jan | 111.90% | May | 26.90% | October | Appropriate |
Nepal | Aug | 99.60% | Mar | 78.80% | April | Appropriate |
Pakistan | Feb | 103.10% | Sep | 21.10% | October | Appropriate |
Sri Lanka | Jun | 93.00% | Dec | 75.70% | October | Uncertain |
Eastern Asia | ||||||
China | Feb | 85.60% | Aug | 26.90% | October | Appropriate |
Japan | Feb | 103.70% | Jun | 12.50% | October | Appropriate |
Mongolia | Feb | 105.70% | Jul | 10.80% | October | Appropriate |
South Korea | Feb | 107.50% | Sep | 15.20% | October | Appropriate |
South-East Asia | ||||||
Cambodia | Oct | 101.20% | Jul | 31.50% | April | Not appropriate |
Indonesia | Feb | 84.00% | Oct | 19.50% | October | Appropriate |
Laos | Oct | 79.40% | Feb | 41.90% | April | Not appropriate |
Philippines | Aug | 93.50% | Mar | 24.60% | April | Appropriate |
Singapore | Jun | 72.60% | Jan | 35.90% | October | Uncertain |
Thailand | Sep | 87.50% | Mar | 57.80% | April | Not appropriate |
Vietnam | Jul | 59.00% | Nov | 40.90% | April | Uncertain |
Oceania-Melanesia-Polynesia | ||||||
Australia | Aug | 100.40% | Apr | 12.50% | April | Appropriate |
New Zealand | Aug | 104.30% | Jan | 8.70% | April | Appropriate |