Abstract:
:Human parechovirus (HPeV) infections in Yokohama City, Japan, were surveyed from 2000 to 2016. The sequence of the VP1 region of HPeVs was used to construct a phylogenetic tree and to reveal the putative amino acid (aa) sequences. Phylogenetic analysis showed the presence of 3 genotypes in Yokohama City: HPeV1 (25 specimens), HPeV3 (86 specimens), and HPeV4 (2 specimens). HPeV1 was detected nearly every year, with the highest number detected in 2014. HPeV3 was not detected until 2005, but was detected over a 1- or 3-yr period thereafter. HPeV1 was most prevalent from July to November, whereas HPeV3 peaked in July and August each year. HPeV1 was mainly detected in patients with infectious gastroenteritis or respiratory tract infections. In contrast, 87% of HPeV3-positive cases were in patients less than 2 months of age with a viral-induced fever. An analysis of the aa sequence of VP1 revealed a divergence within the same HPeV genotype, which was useful in analyzing the emergence and re-emergence of HPeV infections during the survey period. These findings suggest that molecular analysis of HPeVs may contribute to a better understanding of its epidemiology.
journal_name
Jpn J Infect Disjournal_title
Japanese journal of infectious diseasesauthors
Momoki TSdoi
10.7883/yoken.JJID.2017.490subject
Has Abstractpub_date
2018-07-24 00:00:00pages
298-301issue
4eissn
1344-6304issn
1884-2836journal_volume
71pub_type
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