期刊
PATHOGENS
卷 10, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/pathogens10111528
关键词
orbivirus; bluetongue; vaccination; vertical transmission; review
类别
资金
- Ministerio de Ciencia e Innovacion (Spain) [RTI2018-094616-B-100]
- Comunidad de Madrid (Fondo Europeo de Desarrollo Regional, FEDER) [S2018/BAA-4370-PLATESA2]
Bluetongue virus (BTV) is an economically important disease in ruminants, typically transmitted by Culicoides spp. Some BTV strains can also be transmitted vertically, leading to fetal malformations and abortions. The factors associated with the virus potency to cross the placental barrier are not well defined.
Bluetongue virus (BTV) produces an economically important disease in ruminants of compulsory notification to the OIE. BTV is typically transmitted by the bite of Culicoides spp., however, some BTV strains can be transmitted vertically, and this is associated with fetus malformations and abortions. The viral factors associated with the virus potency to cross the placental barrier are not well defined. The potency of vertical transmission is retained and sometimes even increased in live attenuated BTV vaccine strains. Because BTV possesses a segmented genome, the possibility of reassortment of vaccination strains with wild-type virus could even favor the transmission of this phenotype. In the present review, we will describe the non-vector-based BTV infection routes and discuss the experimental vaccination strategies that offer advantages over this drawback of some live attenuated BTV vaccines.
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