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2016 ; 5
(9
): e104
Nephropedia Template TP
gab.com Text
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English Wikipedia
Molecular epidemiology of human enterovirus 71 at the origin of an epidemic of
fatal hand, foot and mouth disease cases in Cambodia
#MMPMID27651091
Duong V
; Mey C
; Eloit M
; Zhu H
; Danet L
; Huang Z
; Zou G
; Tarantola A
; Cheval J
; Perot P
; Laurent D
; Richner B
; Ky S
; Heng S
; Touch S
; Sovann L
; van Doorn R
; Tan Tran T
; Farrar JJ
; Wentworth DE
; Das SR
; Stockwell TB
; Manuguerra JC
; Delpeyroux F
; Guan Y
; Altmeyer R
; Buchy P
Emerg Microbes Infect
2016[Sep]; 5
(9
): e104
PMID27651091
show ga
Human enterovirus 71 (EV-A71) causes hand, foot and mouth disease (HFMD). EV-A71
circulates in many countries and has caused large epidemics, especially in the
Asia-Pacific region, since 1997. In April 2012, an undiagnosed fatal disease with
neurological involvement and respiratory distress occurred in young children
admitted to the Kantha Bopha Children's Hospital in Phnom Penh, Cambodia. Most
died within a day of hospital admission, causing public panic and international
concern. In this study, we describe the enterovirus (EV) genotypes that were
isolated during the outbreak in 2012 and the following year. From June 2012 to
November 2013, 312 specimens were collected from hospitalized and ambulatory
patients and tested by generic EV and specific EV-A71 reverse transcription PCR.
EV-A71 was detected in 208 clinical specimens while other EVs were found in 32
patients. The VP1 gene and/or the complete genome were generated. Our
phylogenetic sequencing analysis demonstrated that 80 EV-A71 strains belonged to
the C4a subgenotype and 3 EV-A71 strains belonged to the B5 genotype.
Furthermore, some lineages of EV-A71 were found to have appeared in Cambodia
following separate introductions from neighboring countries. Nineteen EV A (CV-A6
and CV-A16), 9 EV B (EV-B83, CV-B3, CV-B2, CV-A9, E-31, E-2 and EV-B80) and 4 EV
C (EV-C116, EV-C96, CV-A20 and Vaccine-related PV-3) strains were also detected.
We found no molecular markers of disease severity. We report here that EV-A71
genotype C4 was the main etiological agent of a large outbreak of HFMD and
particularly of severe forms associated with central nervous system infections.
The role played by other EVs in the epidemic could not be clearly established.
|*Disease Outbreaks
[MESH]
|*Epidemics
[MESH]
|Adolescent
[MESH]
|Adult
[MESH]
|Cambodia/epidemiology
[MESH]
|Child
[MESH]
|Child, Preschool
[MESH]
|Enterovirus A, Human/classification/*genetics/isolation &
purification/pathogenicity
[MESH]
|Female
[MESH]
|Genome, Viral
[MESH]
|Genotype
[MESH]
|Hand, Foot and Mouth Disease/*epidemiology/*mortality/virology
[MESH]