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The translation of flaviviral RNA genomes yields a single polyprotein that is processed into the mature proteins by viral and host cell proteases. Mature capsid protein C is freed from the polyprotein by the viral NS2B/3 protease, cleaving in the C-terminal region of protein…

We demonstrate the presence of a functional internal ribosome entry site (IRES) within the 5? leader (designated 5L) from a variant of bicistronic mRNAs that encode the pp14 and RLORF9 proteins from Marek's disease virus (MDV) serotype 1. Transcribed as a 1.8-kb family of…

In the light of the recent emergence of multidrug-resistant and extensively drug-resistant strains of Mycobacterium tuberculosis, the epidemic of tuberculosis (TB) in populations coinfected with human immunodeficiency virus, and the failure of Mycobacterium bovis bacillus…

Lumpy skin disease virus (LSDV) belongs to the genus Capripoxvirus within the family Poxviridae and subfamily Chordopoxvirinae. The virus infects cattle and occurs in most African countries and in the Middle East. Lumpy skin disease (LSD) is an economically important disease…

Equine rhinitis A virus (ERAV) is closely related to foot-and-mouth disease virus (FMDV), belonging to the genus Aphthovirus of the Picornaviridae. How picornaviruses introduce their RNA genome into the cytoplasm of the host cell to initiate replication is unclear since they…

Atypical scrapie is a relatively recent discovery, and it was unknown whether it was a new phenomenon or whether it had existed undetected in the United Kingdom national flock. Before 1998, the routine statutory diagnosis of transmissible spongiform encephalopathy (TSE) in…

African horse sickness virus (AHSV) is an orbivirus that is usually transmitted between its equid hosts by adult Culicoides midges. In this article, we review the ways in which AHSV may have adapted to this mode of transmission. The AHSV particle can be modified by the pH or…

The recent arrival in Northern and Western (NW) Europe of bluetongue virus (BTV), which causes the ruminant disease ‘bluetongue’, has raised the profile of this vector-borne ruminant disease and sparked discussions on the reasons for its sudden emergence so far north. This…

Herpesviruses account for 134 out of the 140 virus-encoded microRNAs (miRNAs) known today. Here we report the identification of 11 novel miRNAs encoded by herpesvirus of turkey (HVT), a virus used as a live vaccine in poultry against the highly oncogenic Marek's disease…

Viruses have evolved to use cellular pathways to their advantage, including the ubiquitin–proteasome pathway of protein degradation. In several cases, viruses produce proteins that highjack cellular E3 ligases to modify their substrate specificity in order to eliminate…