Table 2.
Peak time and trough time (week) of influenza (listed by latitude)
| Country | Peak (Aa) | Trough (A) | Peak (Ba) | Trough (B) |
|---|---|---|---|---|
| Chile | 30.5 | 4.5 | 40.5 | 14.5 |
| Argentina | 29.3 | 3.3 | 37.6 | 11.6 |
| South Africa | 27.9 | 1.9 | 35.3 | 9.3 |
| Australia | 33.8 | 7.8 | 33.7 | 7.7 |
| Paraguay | 36.7 | 10.7 | 39.6 | 13.6 |
| New Caledonia | 33.4 | 7.4 | 40.9 | 14.9 |
| Mauritius | 12.4 | 38.4 | 28.3 | 2.3 |
| Madagascar | 13.4 | 39.4 | 37.3 | 11.3 |
| Bolivia | 30.8 | 4.8 | 21.8 | 47.8 |
| Zambia | 31.8 | 5.8 | 32.3 | 6.3 |
| Brazil | 15.2 | 41.2 | 40 | 14 |
| Peru | 34.3 | 8.3 | 37.4 | 11.4 |
| Tanzania | 51.8 | 26.8 | 8.2 | 34.2 |
| Indonesia | 2.4 | 28.4 | 15.9 | 41.9 |
| Ecuador | 2.6 | 28.6 | 24.8 | 50.8 |
| Democratic Republic of the Congo | 2.6 | 28.6 | 15.4 | 41.4 |
| Uganda | 40.3 | 14.3 | 37.6 | 11.6 |
| Maldives | 16.3 | 42.3 | 44.1 | 18.1 |
| Malaysia | 13.4 | 39.4 | 12.8 | 38.8 |
| Colombia | 33 | 7 | 45.3 | 19.3 |
| French Guiana | 9.2 | 35.2 | 22.8 | 48.8 |
| Suriname | 28.4 | 2.4 | 30.7 | 4.7 |
| Cameroon | 50.4 | 24.4 | 44.1 | 18.1 |
| Venezuela | 1.9 | 27.9 | 32.3 | 6.3 |
| Côte d’Ivoire | 25.1 | 51.1 | 37.8 | 11.8 |
| Sri Lanka | 10 | 36 | 4.7 | 30.7 |
| Ghana | 18.7 | 44.7 | 34.8 | 8.8 |
| Panama | 24.2 | 50.2 | 28.5 | 2.5 |
| Togo | 34 | 8 | 46.7 | 20.7 |
| Sierra Leone | 40 | 14 | 25.4 | 51.4 |
| Ethiopia | 52.9 | 26.9 | 12.8 | 38.8 |
| Nigeria | 39 | 13 | 47 | 21 |
| Costa Rica | 45 | 19 | 37.4 | 11.4 |
| Burkina Faso | 51.7 | 25.7 | 50 | 24 |
| Cambodia | 37 | 11 | 42.9 | 16.9 |
| Nicaragua | 36.9 | 10.9 | 33.4 | 7.4 |
| El Salvador | 22.9 | 48.9 | 34.2 | 8.2 |
| Senegal | 47.4 | 21.4 | 31.1 | 5.1 |
| Honduras | 24.8 | 50.8 | 51.7 | 25.7 |
| Thailand | 37.4 | 11.4 | 5.6 | 31.6 |
| Guatemala | 9.4 | 35.4 | 40.8 | 14.8 |
| Vietnam | 22.7 | 48.7 | 4.9 | 30.9 |
| Mali | 3 | 29 | 4.3 | 30.3 |
| Niger | 2.8 | 28.8 | 5.4 | 31.4 |
| Jamaica | 47.1 | 21.1 | 31 | 5 |
| Laos | 38.8 | 12.8 | 2.1 | 28.1 |
| Deminican Republic | 18.2 | 44.2 | 31 | 5 |
| Cuba | 25.4 | 51.4 | 40.8 | 14.8 |
| India | 17.5 | 43.5 | 39.9 | 13.9 |
| Bangladesh | 25.3 | 51.3 | 34.7 | 8.7 |
| Mexico | 2.1 | 28.1 | 6.8 | 32.8 |
| Qatar | 49.6 | 23.6 | 4.6 | 30.6 |
| Bahrain | 45.2 | 19.2 | 10.1 | 36.1 |
| Egypt | 51.1 | 25.1 | 19.8 | 45.8 |
| Bhutan | 24.8 | 50.8 | 51.4 | 25.4 |
| Nepal | 26.7 | 52.7 | 41.1 | 15.1 |
| Pakistan | 51.6 | 25.6 | 5.5 | 31.5 |
| Jordan | 52.7 | 26.7 | 14.9 | 40.9 |
| Iran | 1 | 27 | 14.3 | 40.3 |
| Iraq | 1.6 | 27.6 | 2.7 | 28.7 |
| Afghanistan | 43.4 | 17.4 | 46.3 | 20.3 |
| Lebanon | 4.4 | 30.4 | 9.7 | 35.7 |
| Malta | 5.7 | 31.7 | 8.7 | 34.7 |
| South Korea | 4.8 | 30.8 | 12.1 | 38.1 |
| China | 4.2 | 30.2 | 8.4 | 34.4 |
| Greece | 7.1 | 33.1 | 10.5 | 36.5 |
| Spain | 4.1 | 30.1 | 9.1 | 35.1 |
| Georgia | 5.7 | 31.7 | 10.8 | 36.8 |
| United States | 4.1 | 30.1 | 12.2 | 38.2 |
| Slovenia | 5.9 | 31.9 | 10.7 | 36.7 |
| France | 6.2 | 32.2 | 7.2 | 33.2 |
| Mongolia | 4.5 | 30.5 | 10 | 36 |
| Austria | 7 | 33 | 10.8 | 36.8 |
| Kazakhstan | 6.5 | 32.5 | 9.6 | 35.6 |
| Germany | 6.7 | 32.7 | 12.2 | 38.2 |
| Poland | 6 | 32 | 10.7 | 36.7 |
| Netherlands | 6.7 | 32.7 | 12.7 | 38.7 |
| Ireland | 5.8 | 31.8 | 8 | 34 |
| Belarus | 14.3 | 40.3 | 12.4 | 38.4 |
| United Kingdom | 5.4 | 31.4 | 9.1 | 35.1 |
| Denmark | 5.4 | 31.4 | 9.3 | 35.3 |
| Canada | 4 | 30 | 14 | 40 |
| Russia | 7.2 | 33.2 | 12.6 | 38.6 |
| Norway | 5.8 | 31.8 | 11.2 | 37.2 |
| Finland | 52.8 | 26.8 | 9.5 | 35.5 |
| Iceland | 8.3 | 34.3 | 15.4 | 41.4 |
aA: influenza A; B: influenza B