ISOLATION OF DIFFERENT VIRUSES
FROM STOOL SAMPLES *MUGHIS UDDIN AHMED,
**MOTASIM AHMED, ***TAHANI NAVEED,
***Rehana M. Saadi, ****Shin Isomura, *****Yasmin Akbani
ABSTRACT
Human enteroviruses belong to the
Picornaviridae family and are divided among 5 groups (poliovirus,
human enterovirus A, human enterovirus B, human enterovirus C, and
human enterovirus D) by molecular characteristics. These species
comprise altogether 62 antigenically distinct serotypes and at least
30 additional recently described genetically distinguishable types1,4,22.
Enteroviruses are non-enveloped small viruses (20-30 nm) of icosahedral
symmetry. Their RNA genomes have 7.5 kb, positive sense and single
strand. They are responsible for an extensive variety of diseases,
although 50 to 80% of the infections are asymptomatic. They cause
hepatitis, pleurodinia, stomatitis and neonatal sepsis in a significant
number of patients every year. In developing countries, the poliovirus
is clinically the most significant member of the genus Enteroviruses
(EV) causing paralysis diseases in every 4 out of 1,000 children
in school age. The non-polio enteroviruses (NPEV) are the main responsible
for aseptic meningitis, myocarditis and nonspecific febrile exanthematous
illnesses. Other illnesses with chronic course, such as type I diabetes
mellitus, have also been associated with enterovirus infections
Approximately 75% of infections by EV occur in children under 15
years of age and the attack rates are highest in children under
1 year of age1-4,22.........
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