Survey to detect tick-borne encephalitis virus from human-feeding ticks in Hokkaido, Japan.
Ixodes ovatus
Ixodes persulcatus
Far-Eastern type
Lyme borreliosis
hard tick
Journal
The Journal of dermatology
ISSN: 1346-8138
Titre abrégé: J Dermatol
Pays: England
ID NLM: 7600545
Informations de publication
Date de publication:
Jul 2021
Jul 2021
Historique:
revised:
01
03
2021
received:
23
02
2021
accepted:
08
03
2021
pubmed:
24
3
2021
medline:
6
7
2021
entrez:
23
3
2021
Statut:
ppublish
Résumé
A tick infestation is one of the most common arthropod-related skin diseases in Hokkaido, the northernmost island of Japan. Ticks also act as an infectious disease vector for humans. Tick-borne encephalitis (TBE), a highly mortal central nervous system infection caused by TBE virus (TBEV), has sporadically occurred there recently. However, there have been no epidemiological data on the current surveillance of human tick bites and the prevalence of TBEV in human-feeding ticks. This study was performed to clarify those indeterminate issues. One hundred and fifty-three ixodid ticks feeding on humans were collected from 150 outpatients in Hokkaido during the season of April to August 2018. None of the cases showed any infectious symptoms. These ticks were morphologically identified to species, and a cytopathic assay on baby hamster kidney cells was carried out to detect TBEV from each tick. The tick collection consisted of 108 Ixodes persulcatus (one nymph and 107 adult females), 44 female Ixodes ovatus, and one female Haemaphysalis japonica. No tick extracts showed positive results of the cytopathic assay, suggesting the non-existence of TBEV in the present specimens. However, the survey to detect TBEV from human-feeding ticks is still important to monitor the occurrence of TBE, because human tick bites by I. ovatus, a possible vector of TBEV, are increasing even in the northern and eastern areas of Hokkaido.
Identifiants
pubmed: 33755237
doi: 10.1111/1346-8138.15865
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1094-1097Subventions
Organisme : Japan Agency for Medical Research and Development
ID : 20fm0208101j0004
Organisme : Japan Society for the Promotion of Science
ID : 19K22353
Organisme : Japan Society for the Promotion of Science
ID : 20H03136
Informations de copyright
© 2021 Japanese Dermatological Association.
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