Volume 18, Number 9—September 2012
Research
Surveillance for Influenza Viruses in Poultry and Swine, West Africa, 2006–2008
Table 4
Role of influenza virus stability, as influenced by temperature and relative humidity, on hen egg and livestock production, Benin, Côte d’Ivoire, Egypt, Nigeria, Togo, Indonesia, and Vietnam*
| Country | Livestock production |
Temperature, °C (range)¶# | Relative humidity, % (range)#** | ||||
|---|---|---|---|---|---|---|---|
| Hen eggs†‡ | Chicken meat‡§ | Turkey meat‡§ | Duck meat‡§ | Pork‡§ | |||
| Benin | 306 | 22 | ND | ND | 4 | 26.3 (23–30) | 74.9 (70–81) |
| Côte d’Ivoire | 610 | 23 | ND | ND | 7 | 26.7 (22–32) | 75.3 (70–82) |
| Egypt | 7,000 | 629 | 10.5 | 39 | 2 | 22 (9–35) | 35.2 (35–46) |
| Nigeria | 12,284 | 243 | ND | ND | 218 | 26.4 (21–33) | 84.7 (80–88) |
| Togo | 174 | 9 | ND | ND | 9 | 26.6 (22–32) | 70.6 (63–78) |
| Indonesia | 1,123 | 1,450 | ND | 31 | 637 | 27.7 (23–33) | 80.6 (75–85) |
| Vietnam | 247 | 448 | ND | 82 | 2,470 | 24.1 (13–33) | 71.1 (67–76) |
*Livestock production: Food and Agriculture Organization data for 2008 (21), temperature and relative humidity data: www.climatetemp.info/, March 28, 2012. ND, no data.
†Combination of official data, Food and Agriculture Organization estimates, and calculated data.
‡× 106 eggs.
§× 106 kg.
¶Annual mean value (coldest monthly average low temperature to warmest monthly average high temperature).
#Temperature and relative humidity were measured in the following cities: Cotonou, Benin; Abidjan, Côte d’Ivoire; Cairo, Egypt; Lagos, Nigeria; Lomé, Togo; Jakarta, Indonesia; and Hanoi, Vietnam.
**Annual mean value (driest monthly relative humidity average to most humid monthly relative humidity average).
1Current affiliation: Institut National de la Recherche Agronomique,Toulouse, France.
