首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Temporal and spatial patterns of African swine fever in Sardinia
Authors:A Mannelli  S Sotgia  C Patta  A Oggiano  A Carboni  P Cossu  A Laddomada
Institution:

a  Dipartimento di Produzioni Animali, Epidemiologia, Ecologia, Via Nizza 52-10126 Torino Italy

b  Istituto Zooprofilattico Sperimentale della Sardegna, Via Duca degli Abruzzi, 8 07100 Sassari Italy

Abstract:Temporal patterns and spatial distribution of African swine fever (ASF) were studied through the analysis of routinely collected data in the ASF-endemic area of the Province of Nuoro, Sardinia. During 1993–1996, ASF outbreaks were reported from 45 out of the 82 municipalities of the study area. Overall farm-level incidence rate (IR) was 1.3 outbreaks per 100 farms-year. ASF peaked in 1995 (IR=1.8) and declined in 1996 (IR=0.82). Significant (P<0.05) spring peaks of ASF outbreaks and affected municipalities were detected using statistical methods for circular distributions. Spatial clustering of ASF-affected municipalities, as evaluated by join-count statistics, was significant in 1993 (Zjc=?3.0, P<0.01) and 1994 (Zjc=?3.2, P<0.01) but not in 1995 (Zjc=?0.6, P=0.55) and 1996 (Zjc=?1.2, P=0.23). Extensive pig farming and ASF were spatially co-distributed (κ=0.51, 95% CI=0.33–0.70).
Keywords:Pig-microbiological diseases  African swine fever virus  Spatial analysis  Circular data analysis
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号