Poliomyelitis-like illness due to Japanese encephalitis virus.

BACKGROUND: Acute flaccid paralysis remains common among Vietnamese children despite a pronounced fall in the incidence of poliomyelitis. METHODS: During 1995, all 22 children presenting with acute flaccid paralysis to a referral centre in Ho Chi Minh City, Vietnam, had virological cultures and anti...

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Main Authors: Solomon, T, Kneen, R, Dung, N, Khanh, VC, Thuy, T, Ha, D, Day, N, Nisalak, A, Vaughn, D, White, N
Format: Journal article
Language:English
Published: 1998
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author Solomon, T
Kneen, R
Dung, N
Khanh, VC
Thuy, T
Ha, D
Day, N
Nisalak, A
Vaughn, D
White, N
author_facet Solomon, T
Kneen, R
Dung, N
Khanh, VC
Thuy, T
Ha, D
Day, N
Nisalak, A
Vaughn, D
White, N
author_sort Solomon, T
collection OXFORD
description BACKGROUND: Acute flaccid paralysis remains common among Vietnamese children despite a pronounced fall in the incidence of poliomyelitis. METHODS: During 1995, all 22 children presenting with acute flaccid paralysis to a referral centre in Ho Chi Minh City, Vietnam, had virological cultures and antibody measurements done on serum, cerebrospinal fluid, and faeces. A year later the children were reassessed and electrophysiological studies were done. FINDINGS: Wild poliovirus type 1 was isolated from the faeces of only one patient, and non-polio enteroviruses from three patients. 12 (55%) of the 22 children with acute flaccid paralysis had evidence of acute Japanese encephalitis virus (JEV) infection, compared with only one (1%) of 88 age-matched hospital controls (children with diphtheria; p<0.0001). Compared with JEV-negative patients, weakness in JEV-infected children was more rapid in onset, tended to be asymmetrical, but was less likely to involve the arms. All 12 children with JEV infection were febrile at the onset of weakness, seven had acute retention of urine, and ten had CSF pleiocytosis. Seven of eight JEV-negative patients met the case-definition of Guillain-Barré syndrome, compared with only one of 12 JEV-positive children. At follow-up, patients with JEV infection had greater disability and were more likely to have muscle wasting than were JEV-negative children. Nerve conduction and electromyographic studies indicated damage to the anterior horn cells. INTERPRETATION: JEV causes an acute flaccid paralysis in children that has similar clinical and pathological features to poliomyelitis. In endemic areas, children with acute flaccid paralysis should be investigated for evidence of JEV infection.
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spelling oxford-uuid:6fc5e981-5daa-47c0-847b-1064063290572022-03-26T19:32:49ZPoliomyelitis-like illness due to Japanese encephalitis virus.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6fc5e981-5daa-47c0-847b-106406329057EnglishSymplectic Elements at Oxford1998Solomon, TKneen, RDung, NKhanh, VCThuy, THa, DDay, NNisalak, AVaughn, DWhite, NBACKGROUND: Acute flaccid paralysis remains common among Vietnamese children despite a pronounced fall in the incidence of poliomyelitis. METHODS: During 1995, all 22 children presenting with acute flaccid paralysis to a referral centre in Ho Chi Minh City, Vietnam, had virological cultures and antibody measurements done on serum, cerebrospinal fluid, and faeces. A year later the children were reassessed and electrophysiological studies were done. FINDINGS: Wild poliovirus type 1 was isolated from the faeces of only one patient, and non-polio enteroviruses from three patients. 12 (55%) of the 22 children with acute flaccid paralysis had evidence of acute Japanese encephalitis virus (JEV) infection, compared with only one (1%) of 88 age-matched hospital controls (children with diphtheria; p<0.0001). Compared with JEV-negative patients, weakness in JEV-infected children was more rapid in onset, tended to be asymmetrical, but was less likely to involve the arms. All 12 children with JEV infection were febrile at the onset of weakness, seven had acute retention of urine, and ten had CSF pleiocytosis. Seven of eight JEV-negative patients met the case-definition of Guillain-Barré syndrome, compared with only one of 12 JEV-positive children. At follow-up, patients with JEV infection had greater disability and were more likely to have muscle wasting than were JEV-negative children. Nerve conduction and electromyographic studies indicated damage to the anterior horn cells. INTERPRETATION: JEV causes an acute flaccid paralysis in children that has similar clinical and pathological features to poliomyelitis. In endemic areas, children with acute flaccid paralysis should be investigated for evidence of JEV infection.
spellingShingle Solomon, T
Kneen, R
Dung, N
Khanh, VC
Thuy, T
Ha, D
Day, N
Nisalak, A
Vaughn, D
White, N
Poliomyelitis-like illness due to Japanese encephalitis virus.
title Poliomyelitis-like illness due to Japanese encephalitis virus.
title_full Poliomyelitis-like illness due to Japanese encephalitis virus.
title_fullStr Poliomyelitis-like illness due to Japanese encephalitis virus.
title_full_unstemmed Poliomyelitis-like illness due to Japanese encephalitis virus.
title_short Poliomyelitis-like illness due to Japanese encephalitis virus.
title_sort poliomyelitis like illness due to japanese encephalitis virus
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