Is the New Variant RHDV Replacing Genogroup 1 in Portuguese Wild Rabbit Populations?

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Ana M Lopes (Author) Other; Jorge Correia (Author) Other; Joana Abrantes (Author) Other; Pedro Melo (Author) Other; Margarida Ramada (Author) Other; Maria J Magalhaes (Author) Other; Paulo C Alves (Author) FCUP; Pedro J Esteves (Author) Other

Journal

Title: Viruses-Basel

Vol. 7

Pages: 27-36

ISSN: 1999-4915

Indexing

ISI Web of Knowledge - 65 Citations

Scopus - 62 Citations

Scientific classification

FOS: Natural sciences > Biological sciences

Other information

Authenticus ID: P-00A-5CT

DOI: 10.3390/v7010027

Abstract (EN): The Lagovirus rabbit hemorrhagic disease virus (RHDV), a member of the family Caliciviridae, severely affects European rabbit (Oryctolagus cuniculus) populations by causing rabbit hemorrhagic disease (RHD). RHDV is subdivided in six genogroups but, more recently, a new RHDV variant with a unique genetic and antigenic profile emerged. We performed a study in rabbits found dead in the field during 2013 and 2014 in Portugal to determine the prevalence of this new variant versus the classical RHDV. Fifty-seven liver samples were screened for the presence of RHDV and positive samples were genotyped. All cases of RHDV infection were caused by the new variant. The only former genogroup circulating in Portugal, G1, was not detected. We hence conclude that the new RHDV variant is replacing G1 in Portugal, probably due to a selective advantage. This sudden and rapid replacement emphasizes the necessity of continued monitoring of wild rabbit populations.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10