Picornaviridae


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Related to Picornaviridae: Togaviridae, Retroviridae, Caliciviridae, Astroviridae

Picornaviridae

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. 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). See Animal virus, Coxsackievirus, Poliomyelitis, Rhinovirus

Picornaviridae

[pē‚kȯr·nə′vir·ə‚dī]
(virology)
A viral family made up of the small (18-30 nanometers) ether-sensitive viruses that lack an envelope and have a Togaviridae genome, contains the genera Enterovirus (human polio), Cardiovirus (mengo), Rhinovirus (common cold), and Aphtovirus (foot-and-mouth disease).
References in periodicals archive ?
It is a contagious disease of pigs characterized by fever, vesicular lesions and is caused by Enterovirus member of family Picornaviridae. This disease is transmitted by direct or indirect contact with infected animals or feces and contaminated environment, ingestion of contaminated pork, virus excreted from nasal or mouth secretions.
Similar to the rhinoviruses, enterovirus D68 (EV68) is a naked single-stranded RNA virus in the Picornaviridae family.
Besides its antiviral effect against HRV 14 Bioaron C[R] was tested against another member of the picornaviridae, the nonenveloped plus strand RNA virus: coxsackievirus subtype A9 (CA9).
Aunque la organizacion del genoma del VHA y algunas de sus caracteristicas fisicoquimicas se asemejan a las de otros picornavirus, se ha evidenciado que diverge significativamente de otros miembros de la familia Picornaviridae. En comparacion con otros virus ARN, el VHA no acumula cambios geneticos con alta frecuencia; en efecto, su tasa de mutacion es de alrededor de [10.sup.-4] a [10.sup.-5] sustituciones por base/ciclo de replicacion contrario al caso de otros picornavirus como los poliovirus, cuya tasa de mutacion es de 2 x [10.sup.-3] sustituciones por base/ciclo de replicacion, es decir, que del 10% al 20% de los genomas virales mutan por ciclo de replicacion (6,23,61).
The causative agent of FMD is the foot-and-mouth disease virus (FMDV), which is an aphthovirus of the family Picornaviridae (Belsham, 1993).
El poliovirus es un virion icosaedrico RNA lineal, de la familia Picornaviridae y del genero Enterovirus, del cual se conocen tres serotipos: tipo 1 (Brunilda), el cual ocasiona las epidemias y se aisla con mayor frecuencia en los casos paraliticos; tipo 2 (Lansing) y tipo 3 (Leon) relacionados con los casos de paralisis asociados a la vacuna antipoliomielitica oral (VPO).
Enterovirus 71 (EV71) is a positive-stranded RNA genome and belongs to a member of the species A, Enterovirus genus, Picornaviridae family [1].
The causative agent, foot-and-mouth disease virus (FMDV), is a member of the genus Aphthovirus within the family Picornaviridae and has seven serotypes: O, A, C, Asia1, and Southern African Territories (SAT) 1, SAT2, and SAT3 [1, 2].
Naked viruses cause diseases such as the common cold (picornaviridae and adenoviridae), warts (papillomaviridae) and rotavirus (reoviridae).
Enterovirus, pequenos virus de ARN de simple cadena pertenecientes a la familia Picornaviridae, son reconocidos como agentes etiologicos de numerosas patologias, entre las cuales la gastroenteritis, asociada principalmente a casos esporadicos y brotes en ninos, con una prevalencia cercana al 10% (52).
EMCV, a member of the Picornaviridae family which includes the Enterovirus genus, can cause acute myocarditis in various animals.
Enteroviruses are positive-sense RNA viruses, 22-30 nm in diameter (Rajtar et al., 2008), belonging to the Enterovirus genus of the Picornaviridae family, order Picornavirales (ICTV, 2009).