Orbivirus is a genus of double-stranded RNA viruses in the family Reoviridae and subfamily Sedoreovirinae. Unlike other reoviruses, orbiviruses are arboviruses. They can infect and replicate within a wide range of arthropod and vertebrate hosts. Orbiviruses are named after their characteristic doughnut-shaped capsomers (orbis in Latin means ring).

Genus: Orbivirus . Distinguishing features. Virions have a relatively featureless outer capsid as viewed by negative-staining and electron microscopy and a genome composed of 10 segments of dsRNA. Core particles have characteristic ring-shaped capsomers.

Orbivirus is a special genus of insect-borne viruses among the Reovirales, mainly including BTV, African Horse Sickness Virus (AHSV), and Epizootic haemorrhagic disease virus (EHDV).

Certain Orthoreovirus, Orbivirus, Coltivirus, and Rotavirus species infect humans; Phytoreovirus and Fijivirus species infect plants and insects; the cypoviruses (the cytoplasmic polyhidrosis viruses) infect insects, and aquareoviruses infect fish. This chapter concerns only the members of the Reoviridae known to infect humans.

Orbiviruses are vector-borne pathogens that are transmitted by ticks, mosquitoes, gnats, and midges. Studies on the pathophysiology of orbiviral infections specifically in humans have not been...

2024年3月28日 · 环状病毒（orbivirus）是一类通过媒介昆虫（蚊/蠓/蜱等）传播的基因组为十节段的双链RNA虫媒病毒。 环状病毒可引发人类疾病，如克麦罗沃病毒（Kemerovo virus，KEMV）和钱吉诺拉病毒（Changuinola virus，CGLV）；也可导致家畜严重疾病，给畜牧业造成巨大经济损失，如蓝舌病病毒（Bluetongue virus, BTV）、非洲马瘟病毒（African horse sickness virus，AHSV）等。 西藏环状病毒（Tibet orbivirus）是2014年报道从西藏的多斑按蚊中分离 …

Many novel emerging orbiviruses have been isolated in the past 15 years. Important viruses include Peruvian horse sickness virus (PHSV) and Yunnan orbivirus (YUOV), pathogens of equids which were originally isolated almost simultaneously from 1997 to 1999 in the People's Republic of China, Australia …

Not only are the different serological responses to gene products present in the mature virus particle used for differential diagnosis, but the gene sequences themselves can also be utilized. Understanding of the relationships between these viruses is progressing to the point that insights into orbivirus molecular epidemiology is now possible.

The genus Orbivirus contains more than 100 subspecies classified within 14 serogroups, infecting a broad range of arthropod and vertebrate hosts. Orbiviruses are named based on their characteristic doughnut-shaped capsomers.

There are 22 named species of orbivirus that infect animals and insects. Orbiviruses are “arboviruses” as they are transmitted by insects such as ticks, mosquitoes, sand flies, and biting midges. They have a wide host range among animals and birds. Transmission requires that orbiviruses replicate in both insect and animal hosts.