What is the meaning of picornavirus?
Definition of picornavirus : any of a family (Picornaviridae) of small single-stranded RNA viruses that include the causative agents of encephalomyocarditis, hepatitis A, polio, foot-and-mouth disease, and hand, foot and mouth disease — compare enterovirus, rhinovirus.
What viruses belong to Picornaviridae?
The family Picornaviridae comprises five genera: Enterovirus, Hepatovirus and Rhinovirus, which infect humans: Apthovirus (foot-and-mouth disease virus), which infects cloven-hoofed animals and occasionally humans; and Cardiovirus, which infects rodents.
What type of virus is the poliovirus?
Poliovirus, a nonenveloped, positive-sense, single-stranded RNA virus, is a member of the Enterovirus genus within the family Picornaviridae.
What are the four unique viral proteins of Picornaviridae?
The 1A, 1B, 1C, and 1D proteins are the capsid proteins VP4, VP2, VP3, and VP1, respectively.
What are human enteroviruses?
The human enteroviruses are ubiquitous viruses that are transmitted from person to person via direct contact with virus shed from the gastrointestinal or upper respiratory tract. Poliovirus, the prototypical enterovirus, can cause a subclinical or mild illness, aseptic meningitis, or paralytic poliomyelitis.
Is Rotavirus a picornavirus?
There are nine species of the genus, referred to as A, B, C, D, F, G, H, I and J. Rotavirus A, the most common species, causes more than 90% of rotavirus infections in humans. The virus is transmitted by the faecal-oral route….
| Rotavirus | |
|---|---|
| Family: | Reoviridae |
| Subfamily: | Sedoreovirinae |
| Genus: | Rotavirus |
| Species |
Is calicivirus a picornavirus?
Caliciviruses represent a family of non-enveloped positive strand RNA viruses which belong to the picornavirus superfamily [1].
What are the different types of picornaviruses?
Picornaviruses of human origin include the following subgroups: enteroviruses (polioviruses, coxsackieviruses, and echoviruses) and rhinoviruses. There are also picornaviruses of lower animals (for example, bovine foot-and-mouth disease, a rhinovirus).
What is a Pico virus?
A viral family made up of the small (18–30 nanometer) ether-sensitive viruses that lack an envelope and have a ribonucleic acid (RNA) genome. The name is derived from “pico” meaning very small, and RNA for the nucleic acid type.
What is a small virus with no envelope called?
: a family of small single-stranded RNA viruses that have an icosahedral virion with no envelope and that include the causative agents of avian encephalomyelitis, encephalomyocarditis, hepatitis A, polio, foot-and-mouth disease, and hand, foot and mouth disease — see coxsackievirus, echovirus, enterovirus, rhinovirus.
What are enteroviruses?
A family of very small viruses having a core of single-stranded RNA. Numerous species (including the polioviruses, coxsackieviruses, and echoviruses) are included in the family. There are four accepted genera: Enterovirus, Rhinovirus, Cardiovirus, and Aphthovirus. A family of very small viruses having a core of single-stranded RNA.