The paralysis of polio virus infection
A. Is upper motor neurone typeB. is asymmetrical
C. Usually affects the lower limbs more severely than the upper limbs
D. Is more severe if strenuous physical exercise occurred in the incubation period
E. May be caused by polio vaccination
Ans.
B, C, D, E
Poliomyelitis
is caused by three types of polio virus.
Type
1 polio virus is the most virulent and prior to immunization was responsible
for major epidemics.
Polio
virus is an enterovirus and is spread by the feacal oral route. Other factors
associated with paralysis are: pregnancy, tonsillectomy and prophylactic
injections.
The incubation period
is 3-21 days (usually 7-14 days).
