The full genome sequences of two isolates of bluetongue virus (BTV) from a commercial sheeppox vaccine were determined. Strain SPvvvv/02 shows low sequence identity to its closest relative, strain BTV-26 KUW2010/02, indicating the probable detection of a novel BTV genotype, whereas strain SPvvvv/03 shows high sequence identity to strain BTV-28/1537/14.
Wildlife species are routinely captured for translocation, general health monitoring, and research-based pursuits to guide wildlife management. Mule deer () were captured for various research projects and management actions in the Trans-Pecos and Panhandle regions of Texas from 2015 to 2019. The objective of this study was to develop hematologic and biochemical parameters for free-ranging mule deer in Texas and to develop a health monitoring system for current and future mule deer population management.
Background: Bluetongue virus serotype 3 (BTV-3) was detected for the first time in cattle and sheep in southern England in 2023, the first UK BTV incursion for more than 15 years. Clinical signs were not observed, yet severe clinical disease and mortality were reported during recent BTV-3 outbreaks in northern Europe.
Methods: To investigate the clinical disease and infection kinetics associated with this UK BTV-3 strain, five British sheep were infected with a UK BTV-3 isolate using Culicoides biting midges.
With the wide application of messenger RNA (mRNA) technology in medicine and vaccine fields, higher requirements are put forward for mRNA expression efficiency . Since the 5' cap structure can spatially protect mRNA from exonuclease degradation and enhance the initiation of translation reactions, mRNA caps are a promising option to improve the efficiency of mRNA expression . In order to obtain more efficient mRNA capping enzymes, seven mRNA capping enzymes from different viral sources were explored in this study.
The bluetongue virus (BTV), transmitted by biting midges, poses a significant threat to livestock globally. This orbivirus induces bluetongue disease, leading to substantial economic losses in the agricultural sector. The current control measures have limitations, necessitating the development of novel, efficient vaccines.
State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China.
NECTIN1 is a cell adhesion molecule known mainly for its interaction with herpesviruses, but this study reveals its new role as a barrier against flavivirus infections, specifically BVDV.
The researchers found that reducing NECTIN1 levels increased BVDV infections and identified NECTIN1's IgV domain as crucial for its inhibiting function, affecting how BVDV attaches to cells.
The study also showed NECTIN1’s broader antiviral activity against several other viruses, highlighting its potential significance as a restriction factor in controlling flavivirus infections.
