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Chinese Journal of Virology ; (6): 33-36, 2014.
Article in Chinese | WPRIM | ID: wpr-356642

ABSTRACT

This study aims to investigate the serotype distribution of non-polio enterovirus (NPEV) isolated from patients with acute flaccid paralysis (AFP) during 2011-2012 in Hebei Province, China and to analyze the relationship between these viruses and AFP. NPEV strains were isolated from the stool specimens from AFP cases in Hebei using human rhabdomyosarcoma cells (RD) and the mouse cell line expressing the gene for the human cellular receptor for poliovirus (L20B) according to the WHO requirements. The nucleotide sequence of VP1 region was determined, and the serotypes of NPEV were identified by molecular typing. The results showed that among the 82 strains of NPEV isolated from the AFP cases during 2011-2012, 42 isolates (55.3%) were identified as human enterovirus A (HEV-A), which were classified into 4 serotypes, 34 (44.7%) as human enterovirus B (HEV-B), which were classified into 13 serotypes, 2 as adenovirus, and 4 were untyped; human enteroviruses C and D were not found in these cases. Enterovirus A71 (EV-A71) was the main type of HEV-A, accounting for 85.7% of all HEV-A strains. HEV-A, especially EV-A71, was predominant among the NPEV strains isolated from AFP patients during 2011-2012 in Hebei Province.


Subject(s)
Humans , Acute Disease , China , Epidemiology , Enterovirus , Classification , Physiology , Paralysis , Epidemiology , Virology , Seasons , Serotyping
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