APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Poliomyelitis (commonly known as “polio”) is an infectious disease caused by polioviruses 1, 2, and 3 in the enterovirus genus of the picornaviridae viral family. From a public health standpoint, it is the most important of the enteroviruses.

Detailed explanation-2: -The Picornaviridae are an important family of RNA viruses which includes the poliovirus, the coxsackievirus, and ECHOvirus.

Detailed explanation-3: -Picornaviruses are widely prevalent. Enteroviruses are transmitted by the fecal-oral route, via salivary and respiratory droplets, and in some cases via conjunctival secretions and skin lesion exudates. Cockroaches and flies may be vectors.

Detailed explanation-4: -Picornaviruses constitute the family Picornaviridae, order Picornavirales, and realm Riboviria. There are 158 species in this family, assigned to 68 genera. Notable examples are genera Enterovirus (including Rhinovirus and Poliovirus), Aphthovirus, Cardiovirus, and Hepatovirus.

Detailed explanation-5: -Polioviruses are single-stranded RNA viruses belonging to the family Picornaviridae. They have a naked protein capsid with a dense central core. The capsid consists of four structural proteins, VP1, VP2, VP3, and VP4. The genomic RNA is approximately 7440 to 7500 nucleotides in length.