Relationships between vaccinations, herd introductions, and livestock losses in Northern Tanzania
Relationships between vaccinations, herd introductions, and livestock losses in Northern Tanzania
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DOI：
10.1017/age.2021.11
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发表时间：
2021-08-09
影响因子：
1.3
通讯作者：
Cleaveland, Sarah
中科院分区：
文献类型：
--
作者：
Ahmed, Haseeb;Yoder, Jonathan;Cleaveland, Sarah
本文探讨了牲畜疫苗接种、畜群引入决策和牲畜疾病相关结果之间的关系。我们开发了一个理论模型，并得出关于这些结果和实践之间关系的可检验假设，并使用两阶段最小二乘回归分析对其进行测试。我们发现疫苗接种可以减少与疾病相关的牲畜死亡，这意味着疫苗的供应和使用可以改善畜群和家庭的福利。我们没有发现强有力的证据表明由于畜群引进而导致与疾病相关的疾病增加。我们的结果强调了牲畜疫苗接种在保障畜群价值方面的作用，这与东非牲畜饲养者更广泛的家庭福利有关。
This article examines the relationships between livestock vaccinations, herd introduction decisions, and livestock disease-related outcomes. We develop a theoretical model and derive testable hypotheses about the relationships between these outcomes and practices and test them using two-stage least squares regression analysis. We find that vaccinations reduce disease-related livestock deaths, implying that vaccine availability and use may improve herd and household welfare. We do not find robust evidence of increase in disease-related illness due to herd introductions. Our results highlight the role of livestock vaccinations in safeguarding herd value, which is connected to broader household welfare for livestock keepers of Eastern Africa.