Kenya Ministry of Livestock Development, Nairobi, Kenya.
Am J Trop Med Hyg. 2010 Aug;83(2 Suppl):58-64. doi: 10.4269/ajtmh.2010.09-0292.
We analyzed the extent of livestock involvement in the latest Rift Valley fever (RVF) outbreak in Kenya that started in December 2006 and continued until June 2007. When compared with previous RVF outbreaks in the country, the 2006-07 outbreak was the most extensive in cattle, sheep, goats, and camels affecting thousands of animals in 29 of 69 administrative districts across six of the eight provinces. This contrasted with the distribution of approximately 700 human RVF cases in the country, where over 85% of these cases were located in four districts; Garissa and Ijara districts in Northeastern Province, Baringo district in Rift Valley Province, and Kilifi district in Coast Province. Analysis of livestock and human data suggests that livestock infections occur before virus detection in humans, as supported by clustering of human RVF cases around livestock cases in Baringo district. The highest livestock morbidity and mortality rates were recorded in Garissa and Baringo districts, the same districts that recorded a high number of human cases. The districts that reported RVF in livestock for the first time in 2006/07 included Kitui, Tharaka, Meru South, Meru central, Mwingi, Embu, and Mbeere in Eastern Province, Malindi and Taita taveta in Coast Province, Kirinyaga and Murang'a in Central Province, and Baringo and Samburu in Rift Valley Province, indicating that the disease was occurring in new regions in the country.
我们分析了 2006 年 12 月至 2007 年 6 月在肯尼亚爆发的裂谷热（RVF）疫情中牲畜参与的程度。与该国以前的 RVF 疫情相比，2006-07 年的疫情是最广泛的，牛、羊、山羊和骆驼受到影响，在 8 个省中的 6 个省的 69 个行政区中的 29 个行政区中影响了数千只动物。这与全国约 700 例人间 RVF 病例的分布形成对比，其中超过 85%的病例分布在四个地区：东北部的加里萨和伊加拉区、裂谷省的巴林戈区和沿海省的基利菲区。对牲畜和人类数据的分析表明，牲畜感染发生在人类病毒检测之前，巴林戈区的人类 RVF 病例围绕牲畜病例聚类支持了这一点。在加里萨和巴林戈区记录了最高的牲畜发病率和死亡率，这两个地区也记录了大量的人类病例。2006/07 年首次报告牲畜 RVF 的地区包括东部省的基特瓦、塔拉卡、南梅鲁、中梅鲁、姆温吉、恩布和姆贝雷，沿海省的马林迪和泰塔塔韦塔，中央省的基里尼亚加和马鲁阿，以及裂谷省的巴林戈和桑布鲁，表明该疾病正在该国的新地区发生。
