Picornaviridae Flashcards
small (28–30 nm), ether-resistant
viruses exhibiting cubic symmetry
Picornaviridae
The groups infecting humans are enteroviruses:
- polioviruses
- coxsackieviruses
- echoviruses
- parechoviruses
- rhinoviruses
more than 100
serotypes causing _________
Common colds
acid labile and have a high density;
other enteroviruses are generally acid stable and have a
lower density.
Rhinoviruses
Picornaviruses infecting animals include ___________
- foot-and-
mouth disease of cattle - encephalomyocarditis of
rodents
Most common form of disease
Mild disease
Mild disease sign/symptoms
- Headache
- nausea
- vomiting
- constipation
- sore throat
Symptoms of mild disease plus stiffness and pain in the
back and neck. ( 2-10 days)
Non- paralytic Poliomyelitis
How many days takes long of stiff neck and pain in the back and neck?
2-10 days
Rapid recovery
Non- paralytic Poliomyelitis
Other name of Non- paralytic Poliomyelitis
aseptic meningitis
resulting from lower motor neuron damage
flaccid paralysis
The virus spreads from person to person and can infect a person’s
spinal cord, causing paralysis
Paralytic poliomyelitis
recurrence of paralysis and muscle wasting has been observed in
individuals decades after their experience with paralytic poliomyelitis
Progressive Postpoliomyelitis Muscle Atrophy
Maximal recovery usually occurs within 6 months, with residual
paralysis lasting much longer
Paralytic poliomyelitis
