科研之友
微信
新浪微博
Facebook
分享链接
摘要
The EC Council Directive 2006/88/EC adopted during 2008 has listed three Crustacean disease: White Spot Disease (WSD) caused by the White Spot Syndrome Virus (WSSV), Yellowhead disease (YHD) caused by Yellowhead Virus (YHV) and Taura syndrome (TS) caused by Taura Syndrome Virus (TSV). Their inclusion within the Directive acknowledges a lack of protection (regarding biosecurity) to aquaculture and wild stocks of crustaceans in European waters in previous aquatic animal health legislation. In the context of the Directive, it is important to consider the range of host species deemed to be susceptible to these pathogens in order to assess the risk that these species may inadvertently introduce the pathogens to European waters via animal and commodity movements. This review has provided a brief synopsis of available literature for WSD, TS and YHD and has systematically assessed this literature against four objective susceptibility criteria laid down by the European Food Safety Authority (EFSA): (A) Evidence of replication or growth of the organism; (B) Presence of a viable organism: (C) Presence of specific clinico-pathological changes; and (D) Specific location of the pathogen within the host. Importantly these criteria enable discrimination of infected hosts from mechanical carriers (vector status). Hosts are assigned to one of two criteria: Group I hosts for which the literature provides evidence for susceptibility and Group II for which the literature provides limited evidence for susceptibility. The susceptibility of crustacean hosts is discussed in terms of the taxonomic range of these hosts to the specific pathogens and to the use of this information in informing risk assessments for the potential release, exposure and impact of their introduction on the European aquatic environment.
- 出版日期2009-6-3
