What disease is caused by Bunyaviridae family?
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What disease is caused by Bunyaviridae family?
The Bunyaviridae are divided into arthropod-borne viruses (arboviruses) and rodent-borne viruses (roboviruses). Bunyaviruses cause several diseases of human and domestic animals, including fever, hemorrhagic fever, renal failure, encephalitis, meningitis, blindness, and, in domestic animals, congenital defects.
What causes bunyavirus?
The virus is spread by infected ticks or livestock, and person-to-person transmission can also occur. Hantaviruses (family Hantaviridae) were first observed in the early 1950s. These rodent-borne viruses are divided into two groups: Old World and New World.
Is there a vaccine for Bunyaviridae?
Relatively few vaccines for members of the Bunyaviridae have been developed. A live attenuated vaccine against Rift Valley fever virus is available whereas most other vaccines are inactivated viral preparations.
Is Bunyaviridae an arbovirus?
Arboviruses belong to various families of viruses that are transmitted by arthropods, mainly mosquitoes and ticks. Arboviruses that cause human encephalitis in the United States are members of 3 main virus families: Togaviridae, Flaviviridae, and Bunyaviridae; they include St.
Is there a vaccine for bunyavirus?
As there is no FDA or EMA approved vaccine nor specific therapeutics available, hantaviruses have been identified as potential bioterrorism agents by the Centers for Disease Control and Prevention [27].
What are the characteristics of reovirus?
Important features of the orthoreoviruses (or “reoviruses”) include a diameter of 70 nm; a double capsid; ether and acid stability; a genome of 10 segments of double-stranded RNA; three serotypes designated types 1, 2, and 3; and the ability to infect humans as well as various other animals.
Is reovirus positive or negative?
Reovirus Replication Cycle. ; negative-sense strands are used as templates for positive-sense strands. These (+) sense strands serve as late mRNAs and as templates for (-) sense strand synthesis. The capsid is assembled and the particles are released.
What is Congo hemorrhagic fever?
Crimean-Congo haemorrhagic fever (CCHF) in humans is a disease caused by CCHF virus (CCHFV). CCHFV is transmitted by bites from infected ticks (mainly of the Hyalomma genus) or by direct contact with blood or tissues of infected ticks, viraemic patients or viraemic livestock.
What does arboviral mean?
Arboviral disease is a general term used to describe infections caused by a group of viruses spread to people by the bite of infected arthropods (insects) such as mosquitoes and ticks. These infections usually occur during warm weather months, when mosquitoes and ticks are active.
Which of the following Bunyaviruses is not transmitted by an insect vector?
A majority of bunyaviruses are vector-borne. With the exception of Hantaviruses and Arenaviruses, all viruses in the Bunyavirales order are transmitted by arthropods (mosquitos, tick, or sandfly).
Is reovirus and rotavirus same?
Rotaviruses are distinct serologically from the three reovirus serotypes and from all orbiviruses with which they have been tested. Most human rotaviruses share a common group antigen and are designated group A rotaviruses, but other antigens separate the group A rotaviruses into serotypes and subgroups.
What is the genetic material of reovirus?
The genomes of viruses in Reoviridae contain 10–12 segments of double stranded RNA which are grouped into three categories based on their size which are L (large), M (medium) and S (small). So, the correct answer is ‘ds RNA’.
What is the name of the virus that causes Congo fever?
Crimean-Congo hemorrhagic fever (CCHF) is caused by infection with a tick-borne virus (Nairovirus) in the family Bunyaviridae.
What causes Congo fever?
What diseases do filoviruses cause?
Ebola (Ebola Virus Disease)
What is the Bunyaviridae family?
Bunyaviridae. The Bunyaviridae are a very large family of single-strand, enveloped RNA viruses (more than 300 viruses) and consists of five genera of viruses: Orthobunyavirus, Phlebovirus, Nairovirus, Hantavirus, and Tospovirus (Tospoviruses infect only plants). They are found in and transmitted by arthropods (e.g.
What is the Order of the Bunyavirales?
Bunyavirales is an order of single-strand, spherical, enveloped RNA viruses (formerly the Bunyaviridae family). The virus families in the Bunyavirales order that cause viral hemorrhagic fevers include Phenuiviridae, Arenaviridae, Nairoviridae, and Hantaviridae.
What are the clinical manifestations of Bunyaviridae?
Clinical Manifestations The Bunyaviridae are divided into arthropod-borne viruses (arboviruses) and rodent-borne viruses (roboviruses). Bunyaviruses cause several diseases of human and domestic animals, including fever, hemorrhagic fever, renal failure, encephalitis, meningitis, blindness, and, in domestic animals, congenital defects.
What is the biosafety level for Bunyaviridae viruses?
Several viruses of the Bunyaviridae virus family can produce mild to severe disease in human, in animals, and sometimes in both. This is the base for the requirements of handling some of these viruses in high containment (Biosafety Level 3 or even Biosafety level 4 ).
