Nationwide Molecular Epidemiology of Measles Virus in Japan Between 2008 and 2017.
Japan
elimination
genotype
measles virus
molecular epidemiology
Journal
Frontiers in microbiology
ISSN: 1664-302X
Titre abrégé: Front Microbiol
Pays: Switzerland
ID NLM: 101548977
Informations de publication
Date de publication:
2019
2019
Historique:
received:
05
03
2019
accepted:
12
06
2019
entrez:
24
7
2019
pubmed:
25
7
2019
medline:
25
7
2019
Statut:
epublish
Résumé
Genotyping evidence that supports the interruption of endemic measles virus (MV) transmission is one of the essential criteria to be verified in achieving measles elimination. In Japan since 2014, MV genotype analyses have been performed for most of the measles cases in prefectural public health institutes nationwide. With this strong molecular epidemiological data, Japan was verified to have eliminated measles in March, 2015. However, even in the postelimination era, sporadic cases and small outbreaks of measles have been detected repeatedly in Japan. This study investigated the nationwide molecular epidemiology of MV between 2008 and 2017. The 891 strains in the total period between 2008 and 2017 belonged to seven genotypes (D5, D4, D9, H1, G3, B3, and D8) and 124 different MV sequence variants, based on the 450-nucleotide sequence region of the N gene (N450). The 311 MV strains in the postelimination era between 2015 and 2017 were classified into 1, 7, 8, and 32 different N450 sequence variants in D9, H1, B3, and D8 genotypes, respectively. Analysis of the detection period of the individual N450 sequence variants showed that the majority of MV strains were detected only for a short period. However, MV strains, MVs/Osaka.JPN/29.15/ [D8] and MVi/Hulu Langat.MYS/26.11/ [D8], which are named strains designated by World Health Organization (WHO), have been detected in many cases over 2 or 3 years between 2015 and 2017. The WHO-named strains have circulated worldwide, causing outbreaks in many countries. Epidemiological investigation revealed repeated importation of these WHO-named strains into Japan. To demonstrate the elimination status (interruption of endemic transmission) in situations with repeated importation of the same strains is challenging. Nevertheless, the detailed sequence analysis of individual MV strains and chronological analysis of these strains provided sufficient evidence to show that Japan has still maintained its measles elimination status in 2017.
Identifiants
pubmed: 31333607
doi: 10.3389/fmicb.2019.01470
pmc: PMC6620789
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1470Investigateurs
Rika Komagome
(R)
Asami Ohnishi
(A)
Hiroyuki Saito
(H)
Mie Sasaki
(M)
Kenichi Komabayashi
(K)
Atsuko Kanari
(A)
Tsutomu Tamura
(T)
Kazunari Yamamoto
(K)
Kanako Ishikawa
(K)
Fuminori Mizukoshi
(F)
Hiroyuki Tsukagoshi
(H)
Yasutaka Ogawa
(Y)
Takashi Nakada
(T)
Ai Kasuga
(A)
Tomoko Ogawa
(T)
Hajime Yokoi
(H)
Rieko Suzuki
(R)
Hideaki Shimizu
(H)
Satoko Kanazawa
(S)
Masayuki Oonuma
(M)
Nagano Environ
(N)
Kanako Nishizawa
(K)
Yuichiro Okamura
(Y)
Asaka Ikegaya
(A)
Takaharu Maehata
(T)
Toshihiko Furuta
(T)
Masaya Nakazawa
(M)
Yoshihiro Yasui
(Y)
Shinichiro Shibata
(S)
Tsuyoshi Kuzuguchi
(T)
Yasunori Tanaka
(Y)
Hajime Kusuhara
(H)
Kayo Aoki
(K)
Sachi Hirata
(S)
Akiko Nagasao
(A)
Daiki Kanbayashi
(D)
Atsushi Kaida
(A)
Tatsuya Miyoshi
(T)
Miki Ogi
(M)
Taku Uemura
(T)
Shinya Kawanishi
(S)
Masaki Hiragakiuchi
(M)
Machi Inada
(M)
Takashi Nishiyama
(T)
Chika Tatsumi
(C)
Masako Hamano
(M)
Naoki Shigemoto
(N)
Fujii Yoshiki
(F)
Sachiko Murata
(S)
Yukari Terajima
(Y)
Yumiko Kawakami
(Y)
Yuki Ashizuka
(Y)
Chinami Wasano
(C)
Misato Tachibana
(M)
Akiko Honda
(A)
Takashi Sakai
(T)
Kaori Nishizawa
(K)
Yu Matsuura
(Y)
Mutsuyo Gokuden
(M)
Minori Oyama
(M)
Kenji Someya
(K)
Yuichiro Nakatsu
(Y)
Maino Tahara
(M)
Kouji Sakai
(K)
Yukari Yamada
(Y)
Kumi Ueno-Yamamoto
(K)
Yuki Tada
(Y)
Tomoe Shimada
(T)
Kazuyo Yamashita
(K)
Hitomi Kinoshita
(H)
Takuri Takahashi
(T)
Kazutoshi Nakashima
(K)
Hajime Kamiya
(H)
Kiyosu Taniguchi
(K)
Yoshinori Yasui
(Y)
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