1
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Ikebe T, Okuno R, Uchitani Y, Yamaguchi T, Isobe J, Maenishi E, Date Y, Otsuka H, Kazawa Y, Fujita S, Kobayashi A, Takano M, Tsukamoto S, Kanda Y, Ohnishi M, Akeda Y. Epidemiological shifts in and impact of COVID-19 on streptococcal toxic shock syndrome in Japan: A genotypic analysis of group A Streptococcus isolates. Int J Infect Dis 2024; 142:106954. [PMID: 38382822 DOI: 10.1016/j.ijid.2024.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/23/2024] [Accepted: 01/28/2024] [Indexed: 02/23/2024] Open
Abstract
OBJECTIVES Streptococcal toxic shock syndrome (STSS) is caused by group A Streptococcus (GAS; Streptococcus pyogenes) strains. In Japan, the number of STSS cases has decreased; however, the underlying reason remains unclear. Moreover, information on distribution and prevalence of specific emm types in STSS cases is scarce. Hence, we investigated the reason for the decreased number of STSS cases in Japan. METHODS We genotyped emm of 526 GAS isolates obtained from 526 patients with STSS between 2019 and 2022. The distributions of emm types in each year were compared. RESULTS The emm1 type was predominant, with the highest proportion in 2019, which decreased after 2020 following the onset of the coronavirus disease 2019 (COVID-19) pandemic. Strains isolated during the pandemic correlated with strains associated with skin infection, whereas those isolated during the prepandemic period correlated with strains associated with both throat and skin infections. The decrease in the annual number of STSS cases during the COVID-19 pandemic could be due to a decreased proportion of strains associated with pharyngeal infections. CONCLUSIONS Potential associations between pandemic and STSS numbers with respect to public health measures, such as wearing masks and changes in healthcare-seeking behavior, may have affected the number of GAS-induced infections.
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Affiliation(s)
- Tadayoshi Ikebe
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan.
| | - Rumi Okuno
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Yumi Uchitani
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Takahiro Yamaguchi
- Division of Microbiology, Osaka Institute of Public Health, Osaka, Japan
| | - Junko Isobe
- Department of Bacteriology, Toyama Institute of Health, Toyama, Japan
| | - Emi Maenishi
- Department of Bacteriology, Toyama Institute of Health, Toyama, Japan
| | - Yoshimi Date
- Division of Microbiology, Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan
| | - Hitoshi Otsuka
- Department of Public Health Sciences, Yamaguchi Prefectural Institute of Public Health and Environment, Yamaguchi, Japan
| | - Yu Kazawa
- Division of Microbiology, Fukushima Prefectural Institute of Public Health, Fukushima, Japan
| | - Shohei Fujita
- Division of Microbiology, Fukushima Prefectural Institute of Public Health, Fukushima, Japan
| | - Ayaka Kobayashi
- Division of Microbiology, Fukushima Prefectural Institute of Public Health, Fukushima, Japan
| | - Mami Takano
- Laboratory of Microbiology, Oita Prefectural Institute of Health and Environment, Oita, Japan
| | - Shinya Tsukamoto
- Laboratory of Microbiology, Oita Prefectural Institute of Health and Environment, Oita, Japan
| | - Yoshiko Kanda
- Laboratory of Microbiology, Oita Prefectural Institute of Health and Environment, Oita, Japan
| | - Makoto Ohnishi
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yukihiro Akeda
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
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Kanatani JI, Fujiyoshi S, Isobe J, Kimata K, Watahiki M, Maenishi E, Izumiyama S, Amemura-Maekawa J, Maruyama F, Oishi K. Correlation between bacterial microbiome and Legionella species in water from public bath facilities by 16S rRNA gene amplicon sequencing. Microbiol Spectr 2024; 12:e0345923. [PMID: 38363136 PMCID: PMC10986325 DOI: 10.1128/spectrum.03459-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/24/2024] [Indexed: 02/17/2024] Open
Abstract
Public bath facilities are a major source of Legionella infections in Japan. In this study, we performed 16S rRNA gene amplicon sequencing to characterize the bacterial community in bath and shower water from public bath facilities, along with chemical parameters, and investigated the effect of the bacterial microbiome on the presence of Legionella species. Although no significant difference in bacterial community richness was observed between bath and shower water samples, there was a remarkable difference in the bacterial community structure between them. Distance-based redundancy analysis revealed that several factors (free residual chlorine, pH, and conductivity) were correlated with the bacterial community in bath water. The most abundant bacterial genera in the samples were Pseudomonas (13.7%) in bath water and Phreatobacter (13.6%) in shower water, as indicated by the taxonomic composition, and the dominant bacteria differed between these environmental samples. Legionella pneumophila was the most frequently detected Legionella species, with additional 15 other Legionella species detected in water samples. In Legionella-positive water samples, several unassigned and uncultured bacteria were enriched together. In addition, the co-occurrence network showed that Legionella was strongly interconnected with two uncultured bacteria. Corynebacterium and Sphingomonas negatively correlated with Legionella species. The present study reveals the ecology of Legionella species, especially their interactions with other bacteria that are poorly understood to date. IMPORTANCE Public bath facilities are major sources of sporadic cases and outbreaks of Legionella infections. Recently, 16S rRNA gene amplicon sequencing has been used to analyze bacterial characteristics in various water samples from both artificial and natural environments, with a particular focus on Legionella bacterial species. However, the relationship between the bacterial community and Legionella species in the water from public bath facilities remains unclear. In terms of hygiene management, it is important to reduce the growth of Legionella species by disinfecting the water in public bath facilities. Our findings contribute to the establishment of appropriate hygiene management practices and provide a basis for understanding the potential health effects of using bath and shower water available in public bath facilities.
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Affiliation(s)
- Jun-ichi Kanatani
- Department of Bacteriology, Toyama Institute of Health, Imizu, Toyama, Japan
| | - So Fujiyoshi
- Section of Microbial Genomics and Ecology, Hiroshima University, Hiroshima, Japan
| | - Junko Isobe
- Department of Bacteriology, Toyama Institute of Health, Imizu, Toyama, Japan
| | - Keiko Kimata
- Department of Bacteriology, Toyama Institute of Health, Imizu, Toyama, Japan
| | - Masanori Watahiki
- Department of Bacteriology, Toyama Institute of Health, Imizu, Toyama, Japan
| | - Emi Maenishi
- Department of Bacteriology, Toyama Institute of Health, Imizu, Toyama, Japan
| | - Shinji Izumiyama
- Department of Parasitology, National Institute of Infectious Diseases, Toyama, Japan
| | - Junko Amemura-Maekawa
- Department of Bacteriology, National Institute of Infectious Diseases, Toyama, Japan
| | - Fumito Maruyama
- Section of Microbial Genomics and Ecology, Hiroshima University, Hiroshima, Japan
| | - Kazunori Oishi
- Department of Bacteriology, Toyama Institute of Health, Imizu, Toyama, Japan
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3
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Lee K, Iguchi A, Terano C, Hataya H, Isobe J, Seto K, Ishijima N, Akeda Y, Ohnishi M, Iyoda S. Combined usage of serodiagnosis and O antigen typing to isolate Shiga toxin-producing Escherichia coli O76:H7 from a hemolytic uremic syndrome case and genomic insights from the isolate. Microbiol Spectr 2024; 12:e0235523. [PMID: 38092668 PMCID: PMC10790564 DOI: 10.1128/spectrum.02355-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 10/12/2023] [Indexed: 01/13/2024] Open
Abstract
IMPORTANCE Hemolytic uremic syndrome (HUS) is a life-threatening disease caused by Shiga toxin-producing Escherichia coli (STEC) infection. The treatment approaches for STEC-mediated typical HUS and atypical HUS differ, underscoring the importance of rapid and accurate diagnosis. However, specific detection methods for STECs other than major serogroups, such as O157, O26, and O111, are limited. This study focuses on the utility of PCR-based O-serotyping, serum agglutination tests utilizing antibodies against the identified Og type, and isolation techniques employing antibody-conjugated immunomagnetic beads for STEC isolation. By employing these methods, we successfully isolated a STEC strain of a minor serotype, O76:H7, from a HUS patient.
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Affiliation(s)
- Kenichi Lee
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Atsushi Iguchi
- Department of Animal and Grassland Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Chikako Terano
- Department of Nephrology and Rheumatology, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan
- Department of Nephrology, Aichi Children’s Health and Medical Center, Aichi, Japan
| | - Hiroshi Hataya
- Department of Nephrology and Rheumatology, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan
| | - Junko Isobe
- Department of Bacteriology, Toyama Institute of Health, Imizu, Toyama, Japan
| | - Kazuko Seto
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Nozomi Ishijima
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yukihiro Akeda
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Makoto Ohnishi
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Sunao Iyoda
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - EHEC Working Group in JapanMorimotoYoOgawaKeikoIshiguroMakotoKikuchiMasayukiSampeiMikaAokiYokoSetoJunjiIshikawaKanakoSatoTakashiKikuchiKojiTomariKentaroUenoHiroyukiHazamaKyokoKikuchiTakashiYajimaMasayukiKanazawaSatokoKawaseMasaoKimataKeikoYuruzumeSayaShirozaMikaKitagawaEmikoYoshikawaMisaYokoyamaKojiOnoSatokoFurukawaYumiMatsuyamaMikiFurutaAyakoNodaMakikoKameyamaYoshihikoAotaTatsuakiKatamuneChiharuShimodaYukoAbeYuriTamuraSawakoFurukawaYurikaObaraAtsumi
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
- Department of Animal and Grassland Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
- Department of Nephrology and Rheumatology, Tokyo Metropolitan Children’s Medical Center, Tokyo, Japan
- Department of Nephrology, Aichi Children’s Health and Medical Center, Aichi, Japan
- Department of Bacteriology, Toyama Institute of Health, Imizu, Toyama, Japan
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4
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Nakamura K, Seto K, Lee K, Ooka T, Gotoh Y, Taniguchi I, Ogura Y, Mainil JG, Piérard D, Harada T, Etoh Y, Ueda S, Hamasaki M, Isobe J, Kimata K, Narimatsu H, Yatsuyanagi J, Ohnishi M, Iyoda S, Hayashi T. Global population structure, genomic diversity and carbohydrate fermentation characteristics of clonal complex 119 (CC119), an understudied Shiga toxin-producing E. coli (STEC) lineage including O165:H25 and O172:H25. Microb Genom 2023; 9. [PMID: 36951916 PMCID: PMC10132054 DOI: 10.1099/mgen.0.000959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023] Open
Abstract
Among Shiga toxin (Stx)-producing Escherichia coli (STEC) strains of various serotypes, O157:H7 and five major non-O157 STEC (O26:H11, O111:H8, O103:H2, O121:H19 and O145:H28) can be selectively isolated by using tellurite-containing media. While human infections by O165:H25 STEC strains have been reported worldwide, their detection and isolation are not easy, as they are not resistant to tellurite. Systematic whole-genome sequencing (WGS) analyses have not yet been conducted. Here, we defined O165:H25 strains and their close relatives, including O172:H25 strains, as clonal complex 119 (CC119) and performed a global WGS analysis of the major lineage of CC119, called CC119 sensu stricto (CC119ss), by using 202 CC119ss strains, including 90 strains sequenced in this study. Detailed comparisons of 13 closed genomes, including 7 obtained in this study, and systematic analyses of Stx phage genomes in 50 strains covering the entire CC119ss lineage, were also conducted. These analyses revealed that the Stx2a phage, the locus of enterocyte effacement (LEE) encoding a type III secretion system (T3SS), many prophages encoding T3SS effectors, and the virulence plasmid were acquired by the common ancestor of CC119ss and have been stably maintained in this lineage, while unusual exchanges of Stx1a and Stx2c phages were found at a single integration site. Although the genome sequences of Stx2a phages were highly conserved, CC119ss strains exhibited notable variation in Stx2 production levels. Further analyses revealed the lack of SpLE1-like elements carrying the tellurite resistance genes in CC119ss and defects in rhamnose, sucrose, salicin and dulcitol fermentation. The genetic backgrounds underlying these defects were also clarified.
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Affiliation(s)
- Keiji Nakamura
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuko Seto
- Osaka Institute of Public Health, Osaka, Japan
| | - Kenichi Lee
- National Institute of Infectious Diseases, Tokyo, Japan
| | - Tadasuke Ooka
- Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yasuhiro Gotoh
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Itsuki Taniguchi
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | | | | | - Denis Piérard
- Universitair Ziekenhuis Brussel (UZ Brussel), Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | | | - Yoshiki Etoh
- Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan
| | - Saori Ueda
- Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan
| | | | | | | | | | | | - Makoto Ohnishi
- Present address: Chūbu Regional Public Health Center, Okinawa, Japan
- National Institute of Infectious Diseases, Tokyo, Japan
| | - Sunao Iyoda
- National Institute of Infectious Diseases, Tokyo, Japan
| | - Tetsuya Hayashi
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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5
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Itamochi M, Yazawa S, Inasaki N, Saga Y, Yamazaki E, Shimada T, Tamura K, Maenishi E, Isobe J, Nakamura M, Takaoka M, Sasajima H, Kawashiri C, Tani H, Oishi K. Neutralization of Omicron subvariants BA.1 and BA.5 by a booster dose of COVID-19 mRNA vaccine in a Japanese nursing home cohort. Vaccine 2023; 41:2234-2242. [PMID: 36858871 PMCID: PMC9968608 DOI: 10.1016/j.vaccine.2023.02.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 02/28/2023]
Abstract
The sustained epidemic of Omicron subvariants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a worldwide concern, and older adults are at high risk. We conducted a prospective cohort study to assess the immunogenicity of COVID-19 mRNA vaccines (BNT162b2 or mRNA-1273) in nursing home residents and staff between May 2021 and December 2022. A total of 335 SARS-CoV-2 naïve individuals, including 141 residents (median age: 88 years) and 194 staff (median age: 44 years) participated. Receptor-binding domain (RBD) and nucleocapsid (N) protein IgG and neutralizing titer (NT) against the Wuhan strain, Alpha and Delta variants, and Omicron BA.1 and BA.5 subvariants were measured in serum samples drawn from participants after the second and third doses of mRNA vaccine using SARS-CoV-2 pseudotyped virus. Breakthrough infection (BTI) was confirmed by a notification of COVID-19 or a positive anti-N IgG result in serum after mRNA vaccination. Fifty-one participants experienced SARS-CoV-2 BTI during the study period. The RBD IgG and NTs against Omicron BA.1 and BA.5 were markedly increased in SARS CoV-2 naïve participants 2 months after the third dose of mRNA vaccine, compared to those 5 months after the second dose, and declined 5 months after the third dose. The decline in RBD IgG and NT against Omicron BA.1 and BA.5 in SARS-CoV-2 naïve participants after the second and the third dose was particularly marked in those aged ≥ 80 years. BTIs during the BA.5 epidemic period, which occurred between 2 and 5 months after the third dose, induced a robust NT against BA.5 even five months after the booster dose vaccination. Further studies are required to assess the sustainability of NTs elicited by Omicron-containing bivalent mRNA booster vaccine in older adults.
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Affiliation(s)
- Masae Itamochi
- Department of Virology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Shunsuke Yazawa
- Department of Virology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Noriko Inasaki
- Department of Virology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Yumiko Saga
- Department of Virology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Emiko Yamazaki
- Department of Virology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Takahisa Shimada
- Department of Virology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Kosuke Tamura
- Department of Research Planning, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Emi Maenishi
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Junko Isobe
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Masahiko Nakamura
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Misuzu Takaoka
- Department of Research Planning, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Hitoshi Sasajima
- Department of Research Planning, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Chikako Kawashiri
- Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Hideki Tani
- Department of Virology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan
| | - Kazunori Oishi
- Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama 939-0363, Japan.
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Morita D, Arai H, Isobe J, Maenishi E, Kumagai T, Maruyama F, Kuroda T. Whole-Genome and Plasmid Comparative Analysis of Campylobacter jejuni from Human Patients in Toyama, Japan, from 2015 to 2019. Microbiol Spectr 2023; 11:e0265922. [PMID: 36622198 PMCID: PMC9927224 DOI: 10.1128/spectrum.02659-22] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Campylobacter jejuni is a major causative agent of food poisoning, and increasing antimicrobial resistance is a concern. This study investigated 116 clinical isolates of C. jejuni from Toyama, Japan, which were isolated from 2015 to 2019. Antimicrobial susceptibility testing and whole-genome sequencing were used for phenotypic and genotypic characterization to compare antimicrobial resistance (AMR) profiles and phylogenic linkage. The multilocus sequence typing approach identified 37 sequence types (STs) and 15 clonal complexes (CCs), including 7 novel STs, and the high frequency CCs were CC21 (27.7%), CC48 (10.9%), and CC354 (9.9%). The AMR profiles and related resistant factors were as follows: fluoroquinolones (51.7%), mutation in quinolone resistance-determining region (QRDRs) (GyrA T86I); tetracyclines (27.6%), acquisition of tet(O); ampicillin (7.8%), harboring blaOXA184 or a promoter mutation in blaOXA193; aminoglycosides (1.7%), acquisition of ant(6)-Ia and aph(3')-III; chloramphenicol (0.9%), acquisition of cat. The acquired resistance genes tet(O), ant(6)-Ia, aph(3')-III, and cat were located on pTet family plasmids. Furthermore, three pTet family plasmids formed larger plasmids that incorporated additional genes such as the type IV secretion system. Sequence type 4526 (ST4526; 10.9%), which is reported only in Japan, was the most predominant, suggesting continued prevalence. This study reveals the sequences of the pTet family plasmids harbored by C. jejuni in Japan, which had been unclear, and the acquisition of the insertion sequences in a part of the pTet family plasmids. Because pTet family plasmids can be horizontally transmitted and are a major factor in acquired resistance in Campylobacter, the risk of spreading pTet that has acquired further resistance should be considered. IMPORTANCE Campylobacter jejuni is among the major causes of enteritis and diarrhea in humans in many countries. Drug-resistant Campylobacter is increasing in both developing and developed countries, and in particular, fluoroquinolone-resistant Campylobacter was one of the species included on the priority list of antibiotic-resistant bacteria. Campylobacter drug resistance surveillance is important and has been conducted worldwide. In this study, we performed whole-genome analysis of Campylobacter jejuni isolated from diarrhea patients at a hospital in Toyama, Japan. This revealed the continued prevalence of Campylobacter jejuni ST4526, which has been reported to be prevalent in Japan, and the acquisition of resistance and virulence factors in the pTet family plasmids. The diversity of pTet family plasmids, the major resistance transmission factor, is expected to potentially increase the risk of Campylobacter. The usefulness of whole-genome sequencing in Campylobacter surveillance was also demonstrated.
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Affiliation(s)
- Daichi Morita
- Department of Microbiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroki Arai
- Department of Microbiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | | | | | - Takanori Kumagai
- Department of Microbiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Fumito Maruyama
- Section of Microbial Genomics and Ecology, The IDEC Institute, Hiroshima University, Hiroshima, Japan
| | - Teruo Kuroda
- Department of Microbiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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7
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Ikebe T, Okuno R, Uchitani Y, Takano M, Yamaguchi T, Otsuka H, Kazawa Y, Fujita S, Kobayashi A, Date Y, Isobe J, Maenishi E, Ohnishi M, Akeda Y. Serotype Distribution and Antimicrobial Resistance of Streptococcus agalactiae Isolates in Nonpregnant Adults with Streptococcal Toxic Shock Syndrome in Japan in 2014 to 2021. Microbiol Spectr 2023; 11:e0498722. [PMID: 36786620 PMCID: PMC10100893 DOI: 10.1128/spectrum.04987-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/18/2023] [Indexed: 02/15/2023] Open
Abstract
The incidence of streptococcal toxic shock syndrome (STSS) due to group B Streptococcus (GBS) has been increasing annually in Japan and is becoming a serious challenge. Furthermore, in recent years, penicillin- or clindamycin-resistant strains used in treating streptococcal toxic shock syndrome have been reported. However, no report analyzed >100 isolates of group B Streptococcus causing streptococcal toxic shock syndrome. Therefore, we aimed to perform serotyping and antimicrobial susceptibility testing of 268 isolated group B Streptococcus strains from streptococcal toxic shock syndrome cases involving nonpregnant adult patients in Japan between 2014 and 2021. The most prevalent serotype was Ib, followed by serotypes V, III, and Ia. Seven isolates were resistant to penicillin G, and 17.9% (48 isolates) were resistant to clindamycin. Of the penicillin-resistant group B Streptococcus isolates, 71.4% (5 isolates) were clindamycin resistant. In addition, group B Streptococcus strains resistant to penicillin and clindamycin were isolated from patients with streptococcal toxic shock syndrome. Therefore, before these strains become prevalent, introduction of the group B Streptococcus vaccine is essential for disease prevention. IMPORTANCE Group B Streptococcus (GBS) has been increasingly associated with invasive disease in nonpregnant adults. Such infections are responsible for substantial morbidity and mortality, particularly in individuals with underlying chronic conditions. Streptococcal toxic shock syndrome (STSS) is a severe invasive infection characterized by the sudden onset of shock, multiorgan failure, and high mortality. In this study, we assessed 268 GBS-related STSS cases in nonpregnant adults in Japan between 2014 and 2021. Serotype Ib was the most prevalent, followed by serotypes V, III, and Ia, which were identified in more than 80% of STSS isolates. We found that 48 clindamycin-resistant strains and 7 penicillin G-resistant strains were isolated between 2014 and 2021. We believe that our study makes a significant contribution to the literature because we show that the GBS vaccine, particularly the hexavalent conjugate vaccine, is important to reduce the number of patients with STSS.
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Affiliation(s)
| | - Rumi Okuno
- Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Yumi Uchitani
- Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Mami Takano
- Oita Prefectural Institute of Health and Environment, Oita, Japan
| | | | - Hitoshi Otsuka
- Yamaguchi Prefectural Institute of Public Health and Environment, Yamaguchi, Japan
| | - Yu Kazawa
- Fukushima Prefectural Institute of Public Health, Fukushima, Japan
| | - Shohei Fujita
- Fukushima Prefectural Institute of Public Health, Fukushima, Japan
| | - Ayaka Kobayashi
- Fukushima Prefectural Institute of Public Health, Fukushima, Japan
| | - Yoshimi Date
- Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan
| | | | | | | | | | - the Working Group for Beta-Hemolytic Streptococci in Japan
- National Institute of Infectious Diseases, Tokyo, Japan
- Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
- Oita Prefectural Institute of Health and Environment, Oita, Japan
- Osaka Institute of Public Health, Osaka, Japan
- Yamaguchi Prefectural Institute of Public Health and Environment, Yamaguchi, Japan
- Fukushima Prefectural Institute of Public Health, Fukushima, Japan
- Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan
- Toyama Institute of Health, Toyama, Japan
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8
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Ikebe T, Otsuka H, Chiba K, Kazawa Y, Yamaguchi T, Okuno R, Date Y, Sasaki M, Isobe J, Ohnishi M, Akeda Y. Natural mutation in the regulatory gene (srrG) influences virulence-associated genes and enhances invasiveness in Streptococcus dysgalactiae subsp. equisimilis strains isolated from cases of streptococcal toxic shock syndrome. EBioMedicine 2022; 81:104133. [PMID: 35779495 PMCID: PMC9244731 DOI: 10.1016/j.ebiom.2022.104133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/13/2022] [Accepted: 06/13/2022] [Indexed: 11/25/2022] Open
Abstract
Background Streptococcus dysgalactiae subspecies equisimilis (SDSE) has emerged as an important cause of severe invasive infections including streptococcal toxic shock syndrome (STSS). The present study aimed to identify genes involved in differences in invasiveness between STSS and non-invasive SDSE isolates. Methods STSS and non-invasive SDSE isolates were analysed to identify csrS/csrR mutations, followed by a comparative analysis of genomic sequences to identify mutations in other genes. Mutant strains were generated to examine changes in gene expression profiles and altered pathogenicity in mice. Findings Of the 79 STSS-SDSE clinical isolates, 15 (19.0%) harboured csrS/csrR mutations, while none were found in the non-invasive SDSE isolates. We identified a small RNA (sRNA) that comprised three direct repeats along with an inverted repeat and was transcribed in the same direction as the sagA gene. The sRNA was referred to as srrG (streptolysin S regulatory RNA in GGS). srrG mutations were identified in the STSS-SDSE strains and were found to be associated with elevated expression of the streptolysin S (SLS) gene cluster and enhanced pathogenicity in mice. Interpretation The csrS/csrR and srrG mutations that increased virulence gene expression in STSS-SDSE isolates were identified, and strains carrying these mutations caused increased lethality in mice. A significantly higher frequency of mutations was observed in STSS-SDSE isolates, thereby highlighting their importance in STSS. Funding Japan Agency for Medical Research and Development, the Japan Society for the Promotion of Science (JSPS), and the Ministry of Health, Labor, and Welfare of Japan.
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Affiliation(s)
- Tadayoshi Ikebe
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan.
| | - Hitoshi Otsuka
- Department of Public Health Sciences, Yamaguchi Prefectural Institute of Public Health and Environment, Yamaguchi, Japan
| | - Kazuki Chiba
- Division of Microbiology, Fukushima Prefectural Institute of Public Health, Fukushima, Japan
| | - Yu Kazawa
- Division of Microbiology, Fukushima Prefectural Institute of Public Health, Fukushima, Japan
| | - Takahiro Yamaguchi
- Division of Microbiology, Osaka Institute of Public Health, Osaka, Japan
| | - Rumi Okuno
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Tokyo, Japan
| | - Yoshimi Date
- Division of Microbiology, Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan
| | - Mari Sasaki
- Laboratory of Microbiology, Oita Prefectural Institute of Health and Environment, Oita, Japan
| | - Junko Isobe
- Department of Bacteriology, Toyama Institute of Health, Toyama, Japan
| | - Makoto Ohnishi
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yukihiro Akeda
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
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9
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Nishida R, Nakamura K, Taniguchi I, Murase K, Ooka T, Ogura Y, Gotoh Y, Itoh T, Toyoda A, Mainil JG, Piérard D, Seto K, Harada T, Isobe J, Kimata K, Etoh Y, Hamasaki M, Narimatsu H, Yatsuyanagi J, Kameyama M, Matsumoto Y, Nagai Y, Kawase J, Yokoyama E, Ishikawa K, Shiomoto T, Lee K, Kang D, Akashi K, Ohnishi M, Iyoda S, Hayashi T. The global population structure and evolutionary history of the acquisition of major virulence factor-encoding genetic elements in Shiga toxin-producing Escherichia coli O121:H19. Microb Genom 2021; 7. [PMID: 34878971 PMCID: PMC8767318 DOI: 10.1099/mgen.0.000716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Shiga toxin (Stx)-producing Escherichia coli (STEC) are foodborne pathogens causing serious diseases, such as haemorrhagic colitis and haemolytic uraemic syndrome. Although O157:H7 STEC strains have been the most prevalent, incidences of STEC infections by several other serotypes have recently increased. O121:H19 STEC is one of these major non-O157 STECs, but systematic whole genome sequence (WGS) analyses have not yet been conducted on this STEC. Here, we performed a global WGS analysis of 638 O121:H19 strains, including 143 sequenced in this study, and a detailed comparison of 11 complete genomes, including four obtained in this study. By serotype-wide WGS analysis, we found that O121:H19 strains were divided into four lineages, including major and second major lineages (named L1 and L3, respectively), and that the locus of enterocyte effacement (LEE) encoding a type III secretion system (T3SS) was acquired by the common ancestor of O121:H19. Analyses of 11 complete genomes belonging to L1 or L3 revealed remarkable interlineage differences in the prophage pool and prophage-encoded T3SS effector repertoire, independent acquisition of virulence plasmids by the two lineages, and high conservation in the prophage repertoire, including that for Stx2a phages in lineage L1. Further sequence determination of complete Stx2a phage genomes of 49 strains confirmed that Stx2a phages in lineage L1 are highly conserved short-tailed phages, while those in lineage L3 are long-tailed lambda-like phages with notable genomic diversity, suggesting that an Stx2a phage was acquired by the common ancestor of L1 and has been stably maintained. Consistent with these genomic features of Stx2a phages, most lineage L1 strains produced much higher levels of Stx2a than lineage L3 strains. Altogether, this study provides a global phylogenetic overview of O121:H19 STEC and shows the interlineage genomic differences and the highly conserved genomic features of the major lineage within this serotype of STEC.
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Affiliation(s)
- Ruriko Nishida
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keiji Nakamura
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Itsuki Taniguchi
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | | | - Tadasuke Ooka
- Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | | | - Yasuhiro Gotoh
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takehiko Itoh
- Graduate School of Bioscience of Biotechnology, Tokyo Institute of Technology, Tokyo, Japan
| | - Atsushi Toyoda
- Advanced Genomics Center, National Institute of Genetics, Shizuoka, Japan
| | | | - Denis Piérard
- Universitair Ziekenhuis Brussel (UZ Brussel), Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Kazuko Seto
- Osaka Institute of Public Health, Osaka, Japan
| | | | | | | | - Yoshiki Etoh
- Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan
| | | | | | | | - Mitsuhiro Kameyama
- Yamaguchi Prefectural Institute of Public Health and Environment, Yamaguchi, Japan
| | - Yuko Matsumoto
- Yokohama City Institute of Public Health, Kanagawa, Japan
| | - Yuhki Nagai
- Mie Prefectural Institute of Public Health and Environmental Sciences, Mie, Japan
| | - Jun Kawase
- Shimane Prefectural Institute of Public Health and Environmental Science, Shimane, Japan
| | - Eiji Yokoyama
- Chiba Prefectural Institute of Public Health, Chiba, Japan
| | | | - Takayuki Shiomoto
- Ishikawa Prefectural Institute of Public Health and Environmental Science, Ishikawa, Japan
| | - Kenichi Lee
- National Institute of Infectious Diseases, Tokyo, Japan
| | - Dongchon Kang
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koichi Akashi
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | | | - Sunao Iyoda
- National Institute of Infectious Diseases, Tokyo, Japan
| | - Tetsuya Hayashi
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- *Correspondence: Tetsuya Hayashi,
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10
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Kanatani JI, Watahiki M, Kimata K, Kato T, Uchida K, Kura F, Amemura-Maekawa J, Isobe J. Detection of Legionella species, the influence of precipitation on the amount of Legionella DNA, and bacterial microbiome in aerosols from outdoor sites near asphalt roads in Toyama Prefecture, Japan. BMC Microbiol 2021; 21:215. [PMID: 34273946 PMCID: PMC8285874 DOI: 10.1186/s12866-021-02275-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 07/08/2021] [Indexed: 11/29/2022] Open
Abstract
Background Legionellosis is caused by the inhalation of aerosolized water contaminated with Legionella bacteria. In this study, we investigated the prevalence of Legionella species in aerosols collected from outdoor sites near asphalt roads, bathrooms in public bath facilities, and other indoor sites, such as buildings and private homes, using amoebic co-culture, quantitative PCR, and 16S rRNA gene amplicon sequencing. Results Legionella species were not detected by amoebic co-culture. However, Legionella DNA was detected in 114/151 (75.5%) air samples collected near roads (geometric mean ± standard deviation: 1.80 ± 0.52 log10 copies/m3), which was comparable to the numbers collected from bathrooms [15/21 (71.4%), 1.82 ± 0.50] but higher than those collected from other indoor sites [11/30 (36.7%), 0.88 ± 0.56] (P < 0.05). The amount of Legionella DNA was correlated with the monthly total precipitation (r = 0.56, P < 0.01). It was also directly and inversely correlated with the daily total precipitation for seven days (r = 0.21, P = 0.01) and one day (r = − 0.29, P < 0.01) before the sampling day, respectively. 16S rRNA gene amplicon sequencing revealed that Legionella species were detected in 9/30 samples collected near roads (mean proportion of reads, 0.11%). At the species level, L. pneumophila was detected in 2/30 samples collected near roads (the proportion of reads, 0.09 and 0.11% of the total reads number in each positive sample). The three most abundant bacterial genera in the samples collected near roads were Sphingomonas, Streptococcus, and Methylobacterium (mean proportion of reads; 21.1%, 14.6%, and 1.6%, respectively). In addition, the bacterial diversity in outdoor environment was comparable to that in indoor environment which contains aerosol-generating features and higher than that in indoor environment without the features. Conclusions DNA from Legionella species was widely present in aerosols collected from outdoor sites near asphalt roads, especially during the rainy season. Our findings suggest that there may be a risk of exposure to Legionella species not only in bathrooms but also in the areas surrounding asphalt roads. Therefore, the possibility of contracting legionellosis in daily life should be considered. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02275-2.
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Affiliation(s)
- Jun-Ichi Kanatani
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, 939-0363, Imizu-city, Toyama, Japan.
| | - Masanori Watahiki
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, 939-0363, Imizu-city, Toyama, Japan
| | - Keiko Kimata
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, 939-0363, Imizu-city, Toyama, Japan
| | - Tomoko Kato
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, 939-0363, Imizu-city, Toyama, Japan
| | - Kaoru Uchida
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, 939-0363, Imizu-city, Toyama, Japan
| | - Fumiaki Kura
- Department of Bacteriology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, 162-8640, Tokyo, Japan
| | - Junko Amemura-Maekawa
- Department of Bacteriology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, 162-8640, Tokyo, Japan
| | - Junko Isobe
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, 939-0363, Imizu-city, Toyama, Japan
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11
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Watahiki M, Uchida K, Kanatani JI, Kato T, Kimata K, Isobe J, Oishi K, Tozaki K, Sekiguchi K, Horita Y, Morishima Y, Sugiyama H. Molecular Identification of Parasites Isolated from the Stomach of Patients with Anisakis Food Poisoning in Toyama Prefecture, Japan, in 2018. Jpn J Infect Dis 2020; 74:85-86. [PMID: 32611981 DOI: 10.7883/yoken.jjid.2020.289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Masanori Watahiki
- Toyama Prefectural Institute of Health, National Institute of Infectious Diseases, Japan
| | - Kaoru Uchida
- Toyama Prefectural Institute of Health, National Institute of Infectious Diseases, Japan
| | - Jun-Ichi Kanatani
- Toyama Prefectural Institute of Health, National Institute of Infectious Diseases, Japan
| | - Tomoko Kato
- Toyama Prefectural Institute of Health, National Institute of Infectious Diseases, Japan
| | - Keiko Kimata
- Toyama Prefectural Institute of Health, National Institute of Infectious Diseases, Japan
| | - Junko Isobe
- Toyama Prefectural Institute of Health, National Institute of Infectious Diseases, Japan
| | - Kazunori Oishi
- Toyama Prefectural Institute of Health, National Institute of Infectious Diseases, Japan
| | - Kana Tozaki
- Public Health Division, Health & Welfare Department of Toyama Prefecture, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kenji Sekiguchi
- Toyama Prefectural Niikawa Health and Welfare Center, National Institute of Infectious Diseases, Japan
| | - Yasushi Horita
- Toyama Prefectural Niikawa Health and Welfare Center, National Institute of Infectious Diseases, Japan
| | - Yasuyuki Morishima
- Department of Parasitology, National Institute of Infectious Diseases, Japan
| | - Hiromu Sugiyama
- Department of Parasitology, National Institute of Infectious Diseases, Japan
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12
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Nakamura K, Murase K, Sato MP, Toyoda A, Itoh T, Mainil JG, Piérard D, Yoshino S, Kimata K, Isobe J, Seto K, Etoh Y, Narimatsu H, Saito S, Yatsuyanagi J, Lee K, Iyoda S, Ohnishi M, Ooka T, Gotoh Y, Ogura Y, Hayashi T. Differential dynamics and impacts of prophages and plasmids on the pangenome and virulence factor repertoires of Shiga toxin-producing Escherichia coli O145:H28. Microb Genom 2020; 6:e000323. [PMID: 31935184 PMCID: PMC7067040 DOI: 10.1099/mgen.0.000323] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 12/09/2019] [Indexed: 12/20/2022] Open
Abstract
Phages and plasmids play important roles in bacterial evolution and diversification. Although many draft genomes have been generated, phage and plasmid genomes are usually fragmented, limiting our understanding of their dynamics. Here, we performed a systematic analysis of 239 draft genomes and 7 complete genomes of Shiga toxin (Stx)-producing Escherichia coli O145:H28, the major virulence factors of which are encoded by prophages (PPs) or plasmids. The results indicated that PPs are more stably maintained than plasmids. A set of ancestrally acquired PPs was well conserved, while various PPs, including Stx phages, were acquired by multiple sublineages. In contrast, gains and losses of a wide range of plasmids have frequently occurred across the O145:H28 lineage, and only the virulence plasmid was well conserved. The different dynamics of PPs and plasmids have differentially impacted the pangenome of O145:H28, with high proportions of PP- and plasmid-associated genes in the variably present and rare gene fractions, respectively. The dynamics of PPs and plasmids have also strongly impacted virulence gene repertoires, such as the highly variable distribution of stx genes and the high conservation of a set of type III secretion effectors, which probably represents the core effectors of O145:H28 and the genes on the virulence plasmid in the entire O145:H28 population. These results provide detailed insights into the dynamics of PPs and plasmids, and show the application of genomic analyses using a large set of draft genomes and appropriately selected complete genomes.
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Affiliation(s)
- Keiji Nakamura
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazunori Murase
- Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Mitsuhiko P. Sato
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Atsushi Toyoda
- Center for Information Biology, National Institute of Genetics, Tokyo, Japan
| | - Takehiko Itoh
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Tokyo, Japan
| | | | | | - Shuji Yoshino
- Miyazaki Prefectural Institute for Public Health and Environment, Miyazaki, Japan
| | | | | | - Kazuko Seto
- Osaka Institute of Public Health, Osaka, Japan
| | - Yoshiki Etoh
- Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan
| | | | - Shioko Saito
- Akita Research Center for Public Health and Environment, Akita, Japan
| | - Jun Yatsuyanagi
- Akita Research Center for Public Health and Environment, Akita, Japan
| | - Kenichi Lee
- National Institute of Infectious Diseases, Tokyo, Japan
| | - Sunao Iyoda
- National Institute of Infectious Diseases, Tokyo, Japan
| | | | - Tadasuke Ooka
- Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yasuhiro Gotoh
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshitoshi Ogura
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tetsuya Hayashi
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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13
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Tamura K, Kawasuji H, Tachi S, Kawasaki Y, Nagaoka M, Makimoto M, Sakamaki I, Yamamoto Y, Kanatani J, Isobe J, Mitarai S, Yoneda N, Yoneda S, Saito S, Yoshida T. Congenital tuberculosis in an extremely preterm infant and prevention of nosocomial infection. J Infect Chemother 2019; 25:727-730. [PMID: 30910506 DOI: 10.1016/j.jiac.2019.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/23/2019] [Accepted: 03/01/2019] [Indexed: 10/27/2022]
Abstract
Congenital tuberculosis is a rare disease, especially in non-endemic countries. We present a preterm infant who developed congenital tuberculosis in a neonatal intensive care unit (NICU). The male patient, weighing 1140 g was born by cesarean section at 26 weeks gestation. The baby's respiratory condition suddenly deteriorated at 18 days old, and he was diagnosed with congenital tuberculosis after Gram stain revealed "ghost bacilli" in his tracheal aspirate. The mother, who was born in an endemic country, had fever with unknown cause during labor and was diagnosed with miliary tuberculosis after the infant was diagnosed. Both were successfully treated for tuberculosis with a four-drug regimen. The genotyping profiles of Mycobacterium tuberculosis were identical in both mother and baby based on variable number of tandem repeat (VNTR) analysis. The lineage was considered to be East-African Indian. To prevent nosocomial infection in the NICU, 23 potentially exposed infants received isoniazid for 2 months. Two infants showed a transient liver enzyme elevation that seemed to be due to isoniazid. For 10 months after the incident, there were no infants and medical staff who developed tuberculosis. Although the incidence of tuberculosis has steadily decreased in Japan, the percentage of foreign-born individuals has increased yearly, especially those of reproductive age. The evaluation of active tuberculosis should be considered in pregnant women with unexplained fever, history of tuberculosis, or emigration from high-burden areas.
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Affiliation(s)
- Kentaro Tamura
- Division of Neonatology, Maternal and Perinatal Center, Toyama University Hospital, 2630 Sugitani, Toyama, 930-0194, Japan.
| | - Hitoshi Kawasuji
- Department of Clinical Infectious Diseases, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Sayaka Tachi
- Division of Neonatology, Maternal and Perinatal Center, Toyama University Hospital, 2630 Sugitani, Toyama, 930-0194, Japan; Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Yukako Kawasaki
- Division of Neonatology, Maternal and Perinatal Center, Toyama University Hospital, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Mitsuhide Nagaoka
- Division of Neonatology, Maternal and Perinatal Center, Toyama University Hospital, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Masami Makimoto
- Division of Neonatology, Maternal and Perinatal Center, Toyama University Hospital, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Ippei Sakamaki
- Department of Clinical Infectious Diseases, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Yoshihiro Yamamoto
- Department of Clinical Infectious Diseases, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Junichi Kanatani
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama, 939-0363, Japan
| | - Junko Isobe
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama, 939-0363, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, 3-1-24 Matsuyama, Kiyose, Tokyo, 204-0022, Japan
| | - Noriko Yoneda
- Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Satoshi Yoneda
- Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Taketoshi Yoshida
- Division of Neonatology, Maternal and Perinatal Center, Toyama University Hospital, 2630 Sugitani, Toyama, 930-0194, Japan
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14
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Mizuno H, Isobe J, Matsunobe S, Nakamura T, Shimizu Y, Hitomi S. A liquid-liquid blood-gas exchange for the treatment of acute respiratory failure: A new blood gas exchange using artificial blood as an oxygen carrier. Int J Artif Organs 2018. [DOI: 10.1177/039139889401701110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A new liquid-liquid blood gas exchange system was investigated using a veno-venous low flow extracorporeal circuit. A 2 m2 hollow fiber dialyzer served as the interface of the blood and oxygen carrier (a 38 percent FC-43, perfluorocarbon emulsion in a buffered electrolyte solution), which was continuously recycled through a bubble oxygenator. Experiments were performed on five mongrel dogs under general anesthesia. Upon the arrest of spontaneous ventilation, the dogs' lungs were inflated with 50% oxygen gas under a positive pressure of 10 cmH2O. After 10 min of apnea the dogs' PaO2 decreased to 37 ± 14 mmHg, and the extracorporeal circulation was started at 10 ml/min/kg b./w. At 15 min the PaO2 had risen to 80 ± 41 mmHg and at 30 min to 121 ± 17 mmHg. The oxygen transfer was 8.3 ± 2.3 ml/min. The extracorporeal circulation was continued 5h, when PaO2 reached 156 ± 90 mmHg, and PaCO2 148 ± 43 mmHg, then stopped. Fifteen minutes later, the PaO2 had returned to 32 ± 10 mmHg. These findings indicate that our blood gas exchange system can supply a sufficient amount of oxygen to the body under apnea with continuous positive airway pressure.
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Affiliation(s)
- H. Mizuno
- Chest Disease Research Institute, Kyoto University, Kyoto
| | - J. Isobe
- Research Center for Biomedical Engineering, Kyoto University, Kyoto - Japan
| | - S. Matsunobe
- Research Center for Biomedical Engineering, Kyoto University, Kyoto - Japan
| | - T. Nakamura
- Research Center for Biomedical Engineering, Kyoto University, Kyoto - Japan
| | - Y. Shimizu
- Research Center for Biomedical Engineering, Kyoto University, Kyoto - Japan
| | - S. Hitomi
- Chest Disease Research Institute, Kyoto University, Kyoto
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15
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Higashi Y, Nakamura S, Kidani K, Matumoto K, Kawago K, Isobe J, Kanatani J, Kawagishi Y, Sakamaki I, Yamamoto Y. Mycobacterium bovis-induced Aneurysm after Intravesical Bacillus Calmette-Guérin Therapy: A Case Study and Literature Review. Intern Med 2018; 57:429-435. [PMID: 29093394 PMCID: PMC5827329 DOI: 10.2169/internalmedicine.9102-17] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Mycobacterium bovis infection after intravesical Bacillus Calmette-Guérin (BCG) therapy is rare. A 65-year-old Japanese man with history of bladder cancer and intravesical BCG therapy, presented with low-grade fever. An aneurysm with perianeurysmal fluid was suspected and endovascular aortic repair was performed. After 160 days, he developed blood-streaked sputum and computed tomography images revealed that the perianeurysmal fluid area was increasing in size. A multiplex polymerase chain reaction using sputum identified M. bovis. Treatment with anti-tuberculosis drugs reduced the size of the perianeurysmal fluid area. After intravesical BCG therapy, the possibility of M. bovis infection should be considered, thus further investigations are required.
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Affiliation(s)
- Yoshitsugu Higashi
- Department of Clinical Infectious Diseases, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Japan
| | - Shigeki Nakamura
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Japan
| | - Kento Kidani
- Department of Clinical Infectious Diseases, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Japan
| | - Kaoru Matumoto
- Department of Clinical Infectious Diseases, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Japan
| | - Koyomi Kawago
- Department of Clinical Infectious Diseases, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Japan
| | - Junko Isobe
- Department of Bacteology, Toyama Institute of Health, Japan
| | | | - Yukio Kawagishi
- Division of Respiratory Medicine, Kurobe City Hospital, Japan
| | - Ippei Sakamaki
- Department of Clinical Infectious Diseases, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Japan
| | - Yoshihiro Yamamoto
- Department of Clinical Infectious Diseases, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Japan
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Ogura Y, Gotoh Y, Itoh T, Sato MP, Seto K, Yoshino S, Isobe J, Etoh Y, Kurogi M, Kimata K, Maeda E, Piérard D, Kusumoto M, Akiba M, Tominaga K, Kirino Y, Kato Y, Shirahige K, Ooka T, Ishijima N, Lee KI, Iyoda S, Mainil JG, Hayashi T. Population structure of Escherichia coli O26 : H11 with recent and repeated stx2 acquisition in multiple lineages. Microb Genom 2017; 3:e000141. [PMID: 29208163 PMCID: PMC5729918 DOI: 10.1099/mgen.0.000141] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 11/06/2017] [Indexed: 12/21/2022] Open
Abstract
A key virulence factor of enterohaemorrhagic Escherichia coli (EHEC) is the bacteriophage-encoded Shiga toxin (Stx). Stxs are classified into two types, Stx1 and Stx2, and Stx2-producing strains are thought to cause more severe infections than strains producing only Stx1. Although O26 : H11 is the second most prevalent EHEC following O157 : H7, the majority of O26 : H11 strains produce Stx1 alone. However, Stx2-producing O26 strains have increasingly been detected worldwide. Through a large-scale genome analysis, we present a global phylogenetic overview and evolutionary timescale for E. coli O26 : H11. The origin of O26 has been estimated to be 415 years ago. Sequence type 21C1 (ST21C1), one of the two sublineages of ST21, the most predominant O26 : H11 lineage worldwide, emerged 213 years ago from one of the three ST29 sublineages (ST29C2). The other ST21 lineage (ST21C2) emerged 95 years ago from ST21C1. Increases in population size occurred in the late 20th century for all of the O26 lineages, but most remarkably for ST21C2. Analysis of the distribution of stx2-positive strains revealed the recent and repeated acquisition of the stx2 gene in multiple lineages of O26, both in ST21 and ST29. Other major EHEC virulence genes, such as type III secretion system effector genes and plasmid-encoded virulence genes, were well conserved in ST21 compared to ST29. In addition, more antimicrobial-resistance genes have accumulated in the ST21C1 lineage. Although current attention is focused on several highly virulent ST29 clones that have acquired the stx2 gene, there is also a considerable risk that the ST21 lineage could yield highly virulent clones.
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Affiliation(s)
| | | | | | | | - Kazuko Seto
- Osaka Prefectural Institute of Public Health, Osaka, Japan
| | - Shyuji Yoshino
- Miyazaki Prefectural Institute for Public Health and Environment, Miyazaki, Japan
| | | | - Yoshiki Etoh
- Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan
| | - Mariko Kurogi
- Miyazaki Prefectural Institute for Public Health and Environment, Miyazaki, Japan
| | | | - Eriko Maeda
- Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan
| | | | - Masahiro Kusumoto
- National Institute of Animal Health, National Agriculture and Food Research Organization, Ibaraki, Japan
| | - Masato Akiba
- National Institute of Animal Health, Ibaraki, Japan
| | - Kiyoshi Tominaga
- Yamaguchi Prefectural Institute of Public Health and Environment, Yamaguchi, Japan
| | | | | | | | | | | | - Ken-ichi Lee
- National Institute of Animal Health, National Agriculture and Food Research Organization, Ibaraki, Japan
| | - Sunao Iyoda
- National Institute of Animal Health, National Agriculture and Food Research Organization, Ibaraki, Japan
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Izumiya H, Furukawa M, Ogata K, Isobe J, Watanabe S, Sasaki M, Ichinose K, Arakawa E, Morita M, Kurane I, Ohnishi M. A double-quadratic model for predicting Vibrio species in water environments of Japan. Arch Microbiol 2017. [PMID: 28646477 DOI: 10.1007/s00203-017-1402-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Vibrio spp. are natural inhabitants of marine and estuarine environments. Vibrio cholerae, Vibrio parahaemolyticus, and Vibrio vulnificus are the major infectious agents for humans. Their densities are affected by environmental factors such as water temperature and salinity. The detailed contribution of each factor still remains to be elucidated. Here we conducted multi-coastal study in a 21-month period to examine relationships between environmental factors and V. cholerae, V. parahaemolyticus and V. vulnificus densities in sea surface water in eight coastal sites of four prefectures in Japan. Vibrio densities were measured by a most-probable-number with PCR method which is highly sensitive and quantitative (3/100 ml of detection limit). Vibrio densities were analyzed with environmental factors including water temperature, salinity, total dissolved substance, and pH, and their quadratics. A linear regression model suited best for prediction of V. cholerae density. A novel double-quadratic model suited best for the prediction of V. parahaemolyticus and V. vulnificus densities.
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Affiliation(s)
| | - Masato Furukawa
- Kumamoto Prefectural Institute of Public-Health and Environmental Science, Kumamoto, Japan
| | - Kikuyo Ogata
- Oita Prefectural Institute of Health and Environment, Oita, Japan
| | | | - Setsu Watanabe
- Miyagi Prefectural Institute of Public Health and Environment, Miyagi, Japan
| | - Mari Sasaki
- Oita Prefectural Institute of Health and Environment, Oita, Japan
| | - Kazuya Ichinose
- Oita Prefectural Institute of Health and Environment, Oita, Japan
| | - Eiji Arakawa
- National Institute of Infectious Diseases, Tokyo, Japan
| | | | - Ichiro Kurane
- National Institute of Infectious Diseases, Tokyo, Japan
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18
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Kanatani JI, Isobe J, Norimoto S, Kimata K, Mitsui C, Amemura-Maekawa J, Kura F, Sata T, Watahiki M. Prevalence of Legionella species isolated from shower water in public bath facilities in Toyama Prefecture, Japan. J Infect Chemother 2017; 23:265-270. [PMID: 28188095 DOI: 10.1016/j.jiac.2017.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 01/04/2017] [Accepted: 01/14/2017] [Indexed: 11/20/2022]
Abstract
AIMS We investigated the prevalence of Legionella spp. isolated from shower water in public bath facilities in Toyama Prefecture, Japan. In addition, we analyzed the genetic diversity among Legionella pneumophila isolates from shower water as well as the genetic relationship between isolates from shower water and from stock strains previously analyzed from sputum specimens. METHODS The isolates were characterized using serogrouping, 16S rRNA gene sequencing, and sequence-based typing. RESULTS Legionella spp. were isolated from 31/91 (34.1%) samples derived from 17/37 (45.9%) bath facilities. Isolates from shower water and bath water in each public bath facility were serologically or genetically different, indicating that we need to isolate several L. pneumophila colonies from both bath and shower water to identify public bath facilities as sources of legionellosis. The 61 L. pneumophila isolates from shower water were classified into 39 sequence types (STs) (index of discrimination = 0.974), including 19 new STs. Among the 39 STs, 12 STs match clinical isolates in the European Working Group for Legionella Infections database. Notably, ST505 L. pneumophila SG 1, a strain frequently isolated from patients with legionellosis and from bath water in this area, was isolated from shower water. CONCLUSIONS Pathogenic L. pneumophila strains including ST505 strain were widely distributed in shower water in public bath facilities, with genetic diversity showing several different origins. This study highlights the need to isolate several L. pneumophila colonies from both bath water and shower water to identify public bath facilities as infection sources in legionellosis cases.
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Affiliation(s)
- Jun-Ichi Kanatani
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu-City, Toyama 939-0363, Japan.
| | - Junko Isobe
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu-City, Toyama 939-0363, Japan
| | - Shiho Norimoto
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu-City, Toyama 939-0363, Japan
| | - Keiko Kimata
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu-City, Toyama 939-0363, Japan
| | - Chieko Mitsui
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu-City, Toyama 939-0363, Japan
| | - Junko Amemura-Maekawa
- Department of Bacteriology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Fumiaki Kura
- Department of Bacteriology I, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Tetsutaro Sata
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu-City, Toyama 939-0363, Japan
| | - Masanori Watahiki
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu-City, Toyama 939-0363, Japan
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19
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Hara-Kudo Y, Konishi N, Ohtsuka K, Iwabuchi K, Kikuchi R, Isobe J, Yamazaki T, Suzuki F, Nagai Y, Yamada H, Tanouchi A, Mori T, Nakagawa H, Ueda Y, Terajima J. An interlaboratory study on efficient detection of Shiga toxin-producing Escherichia coli O26, O103, O111, O121, O145, and O157 in food using real-time PCR assay and chromogenic agar. Int J Food Microbiol 2016; 230:81-8. [PMID: 27153219 DOI: 10.1016/j.ijfoodmicro.2016.03.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 03/21/2016] [Accepted: 03/31/2016] [Indexed: 11/28/2022]
Abstract
To establish an efficient detection method for Shiga toxin (Stx)-producing Escherichia coli (STEC) O26, O103, O111, O121, O145, and O157 in food, an interlaboratory study using all the serogroups of detection targets was firstly conducted. We employed a series of tests including enrichment, real-time PCR assays, and concentration by immunomagnetic separation, followed by plating onto selective agar media (IMS-plating methods). This study was particularly focused on the efficiencies of real-time PCR assays in detecting stx and O-antigen genes of the six serogroups and of IMS-plating methods onto selective agar media including chromogenic agar. Ground beef and radish sprouts samples were inoculated with the six STEC serogroups either at 4-6CFU/25g (low levels) or at 22-29CFU/25g (high levels). The sensitivity of stx detection in ground beef at both levels of inoculation with all six STEC serogroups was 100%. The sensitivity of stx detection was also 100% in radish sprouts at high levels of inoculation with all six STEC serogroups, and 66.7%-91.7% at low levels of inoculation. The sensitivity of detection of O-antigen genes was 100% in both ground beef and radish sprouts at high inoculation levels, while at low inoculation levels, it was 95.8%-100% in ground beef and 66.7%-91.7% in radish sprouts. The sensitivity of detection with IMS-plating was either the same or lower than those of the real-time PCR assays targeting stx and O-antigen genes. The relationship between the results of IMS-plating methods and Ct values of real-time PCR assays were firstly analyzed in detail. Ct values in most samples that tested negative in the IMS-plating method were higher than the maximum Ct values in samples that tested positive in the IMS-plating method. This study indicates that all six STEC serogroups in food contaminated with more than 29CFU/25g were detected by real-time PCR assays targeting stx and O-antigen genes and IMS-plating onto selective agar media. Therefore, screening of stx and O-antigen genes followed by isolation of STECs by IMS-plating methods may be an efficient method to detect the six STEC serogroups.
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Affiliation(s)
- Yukiko Hara-Kudo
- Division of Microbiology, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya, Tokyo 158-8501, Japan.
| | - Noriko Konishi
- Tokyo Metropolitan Institute of Public Health, 3-24-1, Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan
| | - Kayoko Ohtsuka
- Saitama Institute of Public Health, 410-1, Ewai, Yoshimi-machi, Hiki-gun, Saitama 355-0133, Japan
| | - Kaori Iwabuchi
- Research Institute for Environmental Sciences and Public Health of Iwate Prefecture, 1-11-16, Kitaiioka, Morioka 020-0857, Japan
| | - Rie Kikuchi
- Fukushima Institute for Public Health, 16-6, Mitouchi, Houkida, Fukushima 960-8560, Japan
| | - Junko Isobe
- Toyama Institute of Health, 17-1, Nakataikouyama, Imizu 939-0363, Japan
| | - Takumiko Yamazaki
- Suginami City Institute of the Public Health, 3-20-3, Takaidohigashi, Suginami, Tokyo 168-0072, Japan
| | - Fumie Suzuki
- Shizuoka City Institute of Environmental Sciences and Public Health, 1-4-7, Oguro, Suruga, Shizuoka 422-8072, Japan
| | - Yuhki Nagai
- Mie Prefecture Health and Environment Research Institute, 3684-11, Sakura-cho, Yokkaichi 512-1211, Japan
| | - Hiroko Yamada
- Hiroshima Prefectural Technology Research Institute, Public Health and Environment Center, 1-6-29, Minami-machi, Minami, Hiroshima 734-0007, Japan
| | - Atsuko Tanouchi
- Hiroshima City Institute of Public Health, 4-1-2, Shoko-Center, Nishi, Hiroshima 733-8650, Japan
| | - Tetsuya Mori
- Institute for Food and Environment Sciences Tokyo Kenbikyo-in Foundation, 4F, 5-1, Toyomi-cho, Chuo, Tokyo 104-0055, Japan
| | - Hiroshi Nakagawa
- BML Food Science Solutions, Inc., 1491, Matoba, Kawagoe 350-1101, Japan
| | - Yasufumi Ueda
- Center of Inspection of Imported Foods and Infectious Diseases, Kobe Quarantine Station, 1-1, Toyahama-cho, Hyogo, Kobe 652-0866, Japan
| | - Jun Terajima
- Division of Microbiology, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya, Tokyo 158-8501, Japan
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20
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Isobe J, Onyeachom U, Taylor R, Dimitropoulos S. Sclerotherapy Use for Chronic Venous Insufficiency Across the United States: A Report From the Venous Patient Outcome Registry. J Vasc Surg Venous Lymphat Disord 2016. [DOI: 10.1016/j.jvsv.2015.10.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Ito K, Matsushita S, Yamazaki M, Moriya K, Kurazono T, Hiruta N, Narimatsu H, Ueno N, Isobe J, Yatsuyanagi J, Kumagai N, Hashimoto M, Ratchtrachenchai OA. Association between aggregative adherence fimbriae types including putative new variants and virulence-related genes and clump formation among aggR-positive Escherichia coli strains isolated in Thailand and Japan. Microbiol Immunol 2015; 58:467-73. [PMID: 24961603 DOI: 10.1111/1348-0421.12173] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 05/29/2014] [Accepted: 06/17/2014] [Indexed: 12/23/2022]
Abstract
Enteroaggregative Escherichia coli (EAggEC) are an important cause of diarrhea. Four types of AAF have been identified; however, their prevalence and association with virulence properties remain unclear. E. coli strains carrying the aggR gene as EAggEC that were isolated in Japan and Thailand (n = 90) were examined for AAF subunit genes, two toxin genes (pet/astA), and clump formation. The most prevalent AAF gene was hdaA (28%), followed by aafA (20%), aggA (12%), and agg3A (4%), as well as a putative new AAF sequence (25.6%). Retention status of the toxin genes and intensities of clump formation appeared to vary according to the AAF type.
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Affiliation(s)
- Kenitiro Ito
- Department of Bacteriology I, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-ku, Tokyo, 162-8640
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22
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Iyoda S, Manning SD, Seto K, Kimata K, Isobe J, Etoh Y, Ichihara S, Migita Y, Ogata K, Honda M, Kubota T, Kawano K, Matsumoto K, Kudaka J, Asai N, Yabata J, Tominaga K, Terajima J, Morita-Ishihara T, Izumiya H, Ogura Y, Saitoh T, Iguchi A, Kobayashi H, Hara-Kudo Y, Ohnishi M, Arai R, Kawase M, Asano Y, Asoshima N, Chiba K, Furukawa I, Kuroki T, Hamada M, Harada S, Hatakeyama T, Hirochi T, Sakamoto Y, Hiroi M, Takashi K, Horikawa K, Iwabuchi K, Kameyama M, Kasahara H, Kawanishi S, Kikuchi K, Ueno H, Kitahashi T, Kojima Y, Konishi N, Obata H, Kai A, Kono T, Kurazono T, Matsumoto M, Matsumoto Y, Nagai Y, Naitoh H, Nakajima H, Nakamura H, Nakane K, Nishi K, Saitoh E, Satoh H, Takamura M, Shiraki Y, Tanabe J, Tanaka K, Tokoi Y, Yatsuyanagi J. Phylogenetic Clades 6 and 8 of Enterohemorrhagic Escherichia coli O157:H7 With Particular stx Subtypes are More Frequently Found in Isolates From Hemolytic Uremic Syndrome Patients Than From Asymptomatic Carriers. Open Forum Infect Dis 2014; 1:ofu061. [PMID: 25734131 PMCID: PMC4281788 DOI: 10.1093/ofid/ofu061] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 07/14/2014] [Indexed: 11/26/2022] Open
Abstract
EHEC O157:H7 clade 6 strains harboring stx2a and/or stx2c and clade 8 strains harboring stx2a or stx2a/stx2c were frequently associated with childhood HUS cases in Japan. Rapid and specific detection of such lineages are required for infection control measures. Background Enterohemorrhagic Escherichia coli (EHEC) O157:H7 infection causes severe diseases such as bloody diarrhea and hemolytic uremic syndrome (HUS). Although EHEC O157:H7 strains have exhibited high genetic variability, their abilities to cause human diseases have not been fully examined. Methods Clade typing and stx subtyping of EHEC O157:H7 strains, which were isolated in Japan during 1999–2011 from 269 HUS patients and 387 asymptomatic carriers (ACs) and showed distinct pulsed-field gel electrophoresis patterns, were performed to determine relationships between specific lineages and clinical presentation. Results Clades 6 and 8 strains were more frequently found among the isolates from HUS cases than those from ACs (P = .00062 for clade 6, P < .0001 for clade 8). All clade 6 strains isolated from HUS patients harbored stx2a and/or stx2c, whereas all clade 8 strains harbored either stx2a or stx2a/stx2c. However, clade 7 strains were predominantly found among the AC isolates but less frequently found among the HUS isolates, suggesting a significant association between clade 7 and AC (P < .0001). Logistic regression analysis revealed that 0–9 year old age is a significant predictor of the association between clade 8 and HUS. We also found an intact norV gene, which encodes for a nitric oxide reductase that inhibits Shiga toxin activity under anaerobic condition, in all clades 1–3 isolates but not in clades 4–8 isolates. Conclusions Early detection of EHEC O157:H7 strains that belonged to clades 6/8 and harbored specific stx subtypes may be important for defining the risk of disease progression in EHEC-infected 0- to 9-year-old children.
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Affiliation(s)
- Sunao Iyoda
- Department of Bacteriology I , National Institute of Infectious Diseases , Tokyo , Japan
| | - Shannon D Manning
- Department of Microbiology and Molecular Genetics , Michigan State University , East Lansing
| | - Kazuko Seto
- Division of Bacteriology , Osaka Prefectural Institute of Public Health , Japan
| | - Keiko Kimata
- Department of Bacteriology , Toyama Institute of Health , Japan
| | - Junko Isobe
- Department of Bacteriology , Toyama Institute of Health , Japan
| | - Yoshiki Etoh
- Fukuoka Institute of Health and Environmental Sciences , Japan
| | | | - Yuji Migita
- Nagasaki Prefectural Institute for Environmental Research and Public Health , Japan
| | - Kikuyo Ogata
- Oita Prefectural Institute of Health and Environment , Japan
| | - Mikiko Honda
- Fukuoka City Institute for Hygiene and the Environment , Japan
| | - Tsutomu Kubota
- Microorganism Section , Kitakyusyu City Institute of Environmental Sciences , Fukuoka , Japan
| | - Kimiko Kawano
- Miyazaki Prefectural Institute for Public Health and Environment , Japan
| | | | - Jun Kudaka
- Okinawa Prefectural Institute of Health and Environment , Japan
| | - Norio Asai
- Kyoto Prefectural Institute of Public Health and Environment , Japan
| | - Junko Yabata
- Yamaguchi Prefectural Institute of Public Health and Environment , Japan
| | - Kiyoshi Tominaga
- Yamaguchi Prefectural Institute of Public Health and Environment , Japan
| | - Jun Terajima
- Department of Bacteriology I , National Institute of Infectious Diseases , Tokyo , Japan ; Division of Microbiology , National Institute of Health Sciences , Tokyo , Japan
| | - Tomoko Morita-Ishihara
- Department of Bacteriology I , National Institute of Infectious Diseases , Tokyo , Japan
| | - Hidemasa Izumiya
- Department of Bacteriology I , National Institute of Infectious Diseases , Tokyo , Japan
| | - Yoshitoshi Ogura
- Department of Genomics and Bioenvironmental Science, Frontier Science Research Center , University of Miyazaki , Japan
| | - Takehito Saitoh
- Infectious Disease Surveillance Center , National Institute of infectious Diseases , Tokyo , Japan
| | - Atsushi Iguchi
- Interdisciplinary Research Organization , University of Miyazaki , Japan
| | - Hideki Kobayashi
- National Agriculture and Food Research Organization , National Institute of Animal Health , Ibaraki , Japan
| | - Yukiko Hara-Kudo
- Division of Microbiology , National Institute of Health Sciences , Tokyo , Japan
| | - Makoto Ohnishi
- Department of Bacteriology I , National Institute of Infectious Diseases , Tokyo , Japan
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Abstract
A one-shot multiplex polymerase chain reaction (PCR) was developed for detecting 12 virulence genes of diarrheagenic Escherichia coli. In order to differentiate between the five categories of diarrheagenic E. coli, we selected the target genes: stx1, stx2, and eaeA for enterohemorrhagic E. coli(EHEC); eaeA, bfpA, and EAF for enteropathogenic E. coli(EPEC); invE for enteroinvasive E. coli(EIEC); elt, estp, and esth for enterotoxigenic E. coli(ETEC); CVD432 and aggR for enteroaggregative E. coli(EAggEC); and astA distributed over the categories of diarrheagenic E. coli. In our multiplex PCR system, all 12 targeted genes (stx1, stx2, eaeA, invE, elt, estp, astA, esth, bfpA, aggR, EAF, and CVD432) were amplified in a single PCR reaction in one tube and detected by electrophoresis. Using our multiplex PCR, the 208 clinically isolated strains of diarrheagenic E. coli in our laboratory were successfully categorized and easily analyzed for the presence of virulence plasmids.
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Affiliation(s)
- Keiko Kimata
- Department of Bacteriology, Toyama Institute of Health, Japan.
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24
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Matsumoto M, Sakae K, Hashikawa S, Torii K, Hasegawa T, Horii T, Endo M, Okuno R, Murayama S, Hirasawa K, Suzuki R, Isobe J, Tanaka D, Katsukawa C, Tamaru A, Tomita M, Ogata K, Ikebe T, Watanabe H, Ohta M. Close Correlation of Streptococcal DNase B (sdaB) Alleles withemmGenotypes inStreptococcus pyogenes. Microbiol Immunol 2013; 49:925-9. [PMID: 16237270 DOI: 10.1111/j.1348-0421.2005.tb03684.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
DNase B is a major nuclease and a possible virulence factor in Streptococcus pyogenes. The allelic diversity of streptococcal DNase B (sdaB) gene was investigated in 83 strains with 14 emm genotypes. Of the 15 alleles identified, 11 alleles carried only synonymous nucleotide substitutions. On the other hand, 4 alleles had a non-synonymous substitution other than synonymous substitutions, resulting in the substitution of a single amino acid. The distribution of each allele was generally emm genotype-specific. Only sdaB7 was found in both emm2 and emm4. The promoter region was highly conserved and DNase B protein was similarly expressed in all alleles.
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Affiliation(s)
- Masakado Matsumoto
- Department of Microbiology, Aichi Prefectural Institute of Public Health, Nagoya, Japan.
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25
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Kanatani JI, Isobe J, Kimata K, Shima T, Shimizu M, Kura F, Sata T, Watahiki M. Molecular epidemiology of Legionella pneumophila serogroup 1 isolates identify a prevalent sequence type, ST505, and a distinct clonal group of clinical isolates in Toyama Prefecture, Japan. J Infect Chemother 2012; 19:644-52. [PMID: 23269379 DOI: 10.1007/s10156-012-0537-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 12/06/2012] [Indexed: 10/27/2022]
Abstract
We performed comparative analyses of Legionella pneumophila serogroup (SG) 1 isolates obtained during 2005-2012 in Toyama Prefecture, Japan, by sequence-based typing (SBT) and pulsed-field gel electrophoresis (PFGE). Seventy-three isolates of L. pneumophila SG 1, including 17 isolates from patients, 51 from public baths, 4 from cooling towers, and 1 from a shower, were analyzed. The isolates were classified into 43 sequence types (STs) by SBT and 52 types by PFGE. Fourteen STs were unique to Toyama Prefecture, as determined from the SBT database of European Working Group for Legionella Infections (EWGLI), as of October 31, 2012. ST505 strain was identified in 4 isolates from patients and 5 isolates from public baths, and these isolates belonged to 2 PFGE types. These, however, were similar because of the difference with only two restriction fragments, indicating that ST505 strain was prevalent among L. pneumophila SG 1 isolates in this area. ST505 strains isolated from patients and public baths were distributed along the river in a western part of Toyama Prefecture. SBT and PFGE profiles of 3 clinical isolates were identical with those of 3 environmental isolates from the suspected origins of the infection in each case, respectively. This finding suggested that SBT and PFGE were useful for epidemiological study. Furthermore, by SBT analysis, we identified a clonal group formed only by 7 clinical isolates that are not associated with bathwater, suggesting that they were derived from unrecognized sources.
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Affiliation(s)
- Jun-Ichi Kanatani
- Department of Bacteriology, Toyama Institute of Health, 17-1 Nakataikoyama, Imizu, Toyama, 939-0363, Japan
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Ooka T, Seto K, Kawano K, Kobayashi H, Etoh Y, Ichihara S, Kaneko A, Isobe J, Yamaguchi K, Horikawa K, Gomes TAT, Linden A, Bardiau M, Mainil JG, Beutin L, Ogura Y, Hayashi T. Clinical significance of Escherichia albertii. Emerg Infect Dis 2012; 18:488-92. [PMID: 22377117 PMCID: PMC3309589 DOI: 10.3201/eid1803.111401] [Citation(s) in RCA: 114] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Discriminating Escherichia albertii from other Enterobacteriaceae is difficult. Systematic analyses showed that E. albertii represents a substantial portion of strains currently identified as eae-positive Escherichia coli and includes Shiga toxin 2f–producing strains. Because E. albertii possesses the eae gene, many strains might have been misidentified as enterohemorrhagic or enteropathogenic E. coli.
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Affiliation(s)
- Tadasuke Ooka
- Division of Bioenvironmental Science, Frontier Science Research Center, University of Miyazaki, Miyazaki, Japan
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27
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Nakayama M, Miyashita T, Hosoya K, Hitomi J, Sato M, Sunaga Y, Shigematsu Y, Ogasawara J, Takenaka S, Hamasaki M, Horikawa K, Isobe J, Sugita-Konishi Y, Kamata Y. [Evaluation of the immunochromatography kit for detection of emetic-toxin producing Bacillus cereus]. Shokuhin Eiseigaku Zasshi 2012; 53:273-7. [PMID: 23470854 DOI: 10.3358/shokueishi.53.273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We evaluated the sensitivity and specificity of an immunochromatography kit, Single-path Emetic Tox Mrk (Merck), which targets a marker protein for the detection of Bacillus cereus that produces emetic toxin. Strains were isolated after outbreaks of food poisoning, and from retail prepared foods and food products. The strains were examined for the presence of the emetic toxin-synthetase gene by PCR. All 58 emetic strains isolated from the food poisoning cases showed a positive reaction in the immunochromatography kit. No emetic strains gave false negative result. Among 47 non-emetic strains, only two strains isolated from the food poisonings and one strain isolated from food products showed a false positive reaction in the test. We concluded that this method has high sensitivity and specificity. The test can be used for detection of emetic toxin-producing B. cereus not only from food poisoning cases, but also in food products.
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Ikebe T, Oguro Y, Ogata K, Katsukawa C, Isobe J, Shima T, Suzuki R, Ohya H, Tominaga K, Okuno R, Uchitani Y, Tada Y, Okabe N, Watanabe H. Surveillance of Severe Invasive Group G Streptococcal Infections in Japan during 2002–2008. Jpn J Infect Dis 2010. [DOI: 10.7883/yoken.63.372] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Tadayoshi Ikebe
- Department of Bacteriology I, National Institute of Infectious Diseases, Japan
| | - Yuuko Oguro
- Department of Bacteriology, Fukushima Institute of Public Health, Japan
| | - Kikuyo Ogata
- Department of Bacteriology, The Oita Prefectural Institute of Health and Environment, Japan
| | - Chihiro Katsukawa
- Department of Microbiology, Osaka Prefectural Institute of Public Health, Japan
| | - Junko Isobe
- Department of Bacteriology, Toyama Institute of Health, Japan
| | - Tomoko Shima
- Department of Bacteriology, Toyama Institute of Health, Japan
| | - Rieko Suzuki
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health, Japan
| | - Hitomi Ohya
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health, Japan
| | - Kiyoshi Tominaga
- Department of Public Health Sciences, Yamaguchi Prefectural Institute of Public Health and Environment, Japan
| | - Rumi Okuno
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Yumi Uchitani
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Yuki Tada
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Japan
| | - Nobuhiko Okabe
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Japan
| | - Haruo Watanabe
- Department of Bacteriology I, National Institute of Infectious Diseases, Japan
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29
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Ikebe T, Oguro Y, Ogata K, Katsukawa C, Isobe J, Shima T, Suzuki R, Ohya H, Tominaga K, Okuno R, Uchitani Y, Tada Y, Okabe N, Watanabe H. Surveillance of severe invasive group G streptococcal infections in Japan during 2002-2008. Jpn J Infect Dis 2010; 63:372-375. [PMID: 20859009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Group G Streptococcus strains isolated from patients with severe invasive infections in the period 2002-2008 were surveyed and their prevalence compared with that observed in the period 1995-2001 in Japan. Strains with genotypes stg485, stg6792, stc36, stg6, and stg652 were isolated in both periods, whereas various new genotypes appeared in 2002-2008 and some genotypes found in 1995-2001 were not found subsequently, thus indicating a change in the prevalent genotyped strains causing severe invasive streptococcal infections.
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Affiliation(s)
- Tadayoshi Ikebe
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo 162-8640, Japan.
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30
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Ikebe T, Wada A, Oguro Y, Ogata K, Katsukawa C, Isobe J, Shima T, Suzuki R, Ohya H, Tominaga K, Okuno R, Uchitani Y, Watanabe H. Emergence of Clindamycin-Resistant <i>Streptococcus pyogenes</i> Isolates Obtained from Patients with Severe Invasive Infections in Japan. Jpn J Infect Dis 2010. [DOI: 10.7883/yoken.63.304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Tadayoshi Ikebe
- Department of Bacteriology I, National Institute of Infectious Diseases, Japan
| | - Akihito Wada
- Department of Bacteriology I, National Institute of Infectious Diseases, Japan
| | - Yuuko Oguro
- Department of Bacteriology, Fukushima Institute of Public Health, Japan
| | - Kikuyo Ogata
- Department of Bacteriology, The Oita Prefectural Institute of Health and Environment, Japan
| | - Chihiro Katsukawa
- Department of Microbiology, Osaka Prefectural Institute of Public Health, Japan
| | - Junko Isobe
- Department of Bacteriology, Toyama Institute of Health, Japan
| | - Tomoko Shima
- Department of Bacteriology, Toyama Institute of Health, Japan
| | - Rieko Suzuki
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health, Japan
| | - Hitomi Ohya
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health, Japan
| | - Kiyoshi Tominaga
- Department of Public Health Sciences, Yamaguchi Prefectural Institute of Public Health and Environment, Japan
| | - Rumi Okuno
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Yumi Uchitani
- Department of Microbiology, Tokyo Metropolitan Institute of Public Health, Japan
| | - Haruo Watanabe
- Department of Bacteriology I, National Institute of Infectious Diseases, Japan
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31
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Iida M, Okamura N, Yamazaki M, Yatsuyanagi J, Kurazono T, Suzuki R, Hiruta N, Isobe J, Seto K, Kawano K, Narimatsu H, Ratchtrachenchai OA, Okabe N, Ito K. Classification of perA sequences and their correlation with autoaggregation in typical enteropathogenic Escherichia coli isolates collected in Japan and Thailand. Microbiol Immunol 2010; 54:184-95. [PMID: 20377747 DOI: 10.1111/j.1348-0421.2010.00212.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Enteropathogenic Escherichia coli (EPEC) strains produce a bundle-forming pilus (BFP) that mediates localized adherence (LA) to intestinal epithelial cells. The major structural subunit of the BFP is bundlin, which is encoded by the bfpA gene located on a large EAF plasmid. The perA gene has been shown to activate genes within the bfp operon. We analyzed perA gene polymorphism among typical (eae- and bfpA-positive) EPEC strains isolated from healthy and diarrheal persons in Japan (n=27) and Thailand (n=26) during the period 1995 to 2007 and compared this with virulence and phenotypic characteristics. Eight genotypes of perA were identified by heteroduplex mobility assay (HMA). The strains isolated in Thailand showed strong autoaggregation and had an intact perA, while most of those isolated in Japan showed weak or no autoaggregation, and had a truncated perA due to frameshift mutation. The degree of autoaggregation was well correlated with adherence to HEp-2 cells, contact hemolysis and BFP expression. Our results showed that functional deficiency due to frameshift mutation and subsequent nonsense mutation in perA reduced BFP expression in typical EPEC strains isolated in Japan.
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Affiliation(s)
- Mariko Iida
- Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
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32
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Ikebe T, Wada A, Oguro Y, Ogata K, Katsukawa C, Isobe J, Shima T, Suzuki R, Ohya H, Tominaga K, Okuno R, Uchitani Y, Watanabe H. Emergence of clindamycin-resistant Streptococcus pyogenes isolates obtained from patients with severe invasive infections in Japan. Jpn J Infect Dis 2010; 63:304-305. [PMID: 20657078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Affiliation(s)
- Tadayoshi Ikebe
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo 162-8640, Japan.
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33
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Amemura-Maekawa J, Kura F, Helbig JH, Chang B, Kaneko A, Watanabe Y, Isobe J, Nukina M, Nakajima H, Kawano K, Tada Y, Watanabe H. Characterization of Legionella pneumophila isolates from patients in Japan according to serogroups, monoclonal antibody subgroups and sequence types. J Med Microbiol 2010; 59:653-659. [DOI: 10.1099/jmm.0.017509-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
We collected 86 unrelated clinical Legionella pneumophila strains that were isolated in Japan during the period 1980–2008. Most (80.2 %) belonged to serogroup 1, followed by serogroups 5, 3 and 2. Interestingly, the patients with L. pneumophila serogroup 1 had a significantly higher male-to-female ratio (12.4) than the patients with other L. pneumophila serogroups (2.0) (OR, 10.5; 95 % CI, 2.5–44.5). When the serogroup 1 strains were analysed by monoclonal antibody (mAb) typing, the most prevalent subgroup was Benidorm (34.9 % of all isolates). Moreover, 79.7 % of the serogroup 1 isolates were bound by mAb 3/1, which recognizes the virulence-associated epitope. When all 86 isolates were subjected to sequence-based typing (SBT) using seven loci, they could be divided into 53 sequence types (STs). The ST with the most isolates (seven) was ST1, to which most isolates from patients and environments around the world belong. However, six of the seven ST1 isolates were isolated before 1994. Other major STs were ST306 (n=6), ST120 (n=5) and ST138 (n=5). All ST306 and ST138 isolates, except for one isolate (ST306), were suspected or confirmed to be derived from bath water, which suggests that these strains prefer bath habitats. The sources of all ST1 and ST120 isolates remain unclear. By combining the SBT and mAb data, the 86 isolates could be divided into 59 types (discrimination index, 0.984). This confirms the usefulness of this combination in epidemiological studies.
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Affiliation(s)
- Junko Amemura-Maekawa
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Fumiaki Kura
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Jürgen H. Helbig
- Institute of Medical Microbiology and Hygiene, TU Dresden, Dresden, Germany
| | - Bin Chang
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Akiko Kaneko
- Yamagata Prefectural Institute of Public Health, Yamagata, Japan
| | - Yuko Watanabe
- Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan
| | | | | | - Hiroshi Nakajima
- Okayama Prefectural Institute for Environmental Science and Public Health, Okayama, Japan
| | - Kimiko Kawano
- Miyazaki Prefectural Institute for Public Health and Environment, Miyazaki, Japan
| | - Yuki Tada
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Haruo Watanabe
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
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34
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Tanaka D, Kimata K, Shimizu M, Isobe J, Watahiki M, Karasawa T, Yamagishi T, Kuramoto S, Serikawa T, Ishiguro F, Yamada M, Yamaoka K, Tokoro M, Fukao T, Matsumoto M, Hiramatsu R, Monma C, Nagai Y. Genotyping of Clostridium perfringens isolates collected from food poisoning outbreaks and healthy individuals in Japan based on the cpe locus. Jpn J Infect Dis 2007; 60:68-9. [PMID: 17314435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
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35
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Ishiguro F, Toho M, Yamazaki M, Matsuyuki S, Moriya K, Tanaka D, Isobe J, Kyota Y, Muraoka M. [Mutations of gyrA gene and parC gene in fluoroquinolone-resistant Escherichia coli isolates from sporadic diarrheal cases]. ACTA ACUST UNITED AC 2006; 80:507-12. [PMID: 17073264 DOI: 10.11150/kansenshogakuzasshi1970.80.507] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We studied 107 isolates of Escherichia coli O153 from sporadic diarrhea cases in Fukui, Toyama, Aichi, and Saga prefectures from 1991 to 2005 for antimicrobial susceptibility and mechanisms of fluoroquinolone resistance, based on standard disk diffusion. Of 12 drugs tested, ampicillin displayed resistance to 72.9% of isolates, streptomycin to 48.6%, tetracycline to 46.7%, sulfisoxazole to 46.7%, trimethoprim/sulfamethoxazole to 29.9%, nalidixic acid (NA) to 29.9%, and ciprofloxacin (CPFX) to 24.3%. Ten of 32 isolates resistant to 3-6 drugs and 16 of 18 isolates resistant to 7-10 drugs were resistant both to NA and CPFX. Mutations of amino acid in quinolone resistance-determining regions of gyrA and parC genes were detected in 24 isolates resistant both to NA and CPFX, and in 1 isolate resistant to NA. The former possessed a combination of double substitution (S83L and D87L) in GyrA and a single substitution (S80I) in ParC. Some 12 of 24 isolates possessed another single substitution (E84V or E84G or A108T) in ParC. The 25 isolates were classified into 4 types as follows. 1 isolate as type 1: GyrA (S83L) and ParC (S80I); 12 isolates as type 2: GyrA (S83L and D87N) and ParC (S80I); 8 isolates as type 3: GyrA (S83L and D87N) and ParC (S80I and E84G/S80R and E84V); and 4 isolate as type 4: GyrA (S83L and D87N) and ParC (S80I and A108T). In the relationship between amino acid mutations and minimal inhibitory concentrations (MIC) of fluoroquinolone, MICs of CPFX, ofloxacin, and norfloxacin showed 1microg/mL, 2microg/mL and 8microg/mL in type 1; 8 approximately 32microg/mL, 8 approximately 32microg/mL and 16 approximately 256microg/mL in type 2; and 32 approximately 256microg/mL' 32 approximately 128microg/mL and 128-->512microg/ mL in types 3 and 4. These results suggest that most of multiple-antimicrobial-resitant E. coli O153 isolates from sporadic diarrhea cases were resistant to fluoroquinolones and possessed mutations at gyrA and parC genes associated with fluoroquinolone resistance.
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Affiliation(s)
- Fubito Ishiguro
- Fukui Prefectural Institute of Public Health and Enviomental Science
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36
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Tanaka D, Shima T, Isobe J, Watahiki M, Matsumoto M, Endoh M, Okuno R, Ogata K, Nagai Y. Epidemiology and molecular analysis of group A streptococci from patients involved in food-borne disease outbreaks in Japan between 1996 and 2003. Jpn J Infect Dis 2006; 59:202-3. [PMID: 16785707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Affiliation(s)
- Daisuke Tanaka
- Department of Bacteriology, Toyama Institute of Health, Imizu, Toyama 939-0363, Japan
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37
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Chang B, Ikebe T, Wada A, Ogata K, Tomita M, Katsukawa C, Kawahara R, Suzuki R, Endo M, Isobe J, Tanaka D, Hirasawa K, Watanabe H. Surveillance of group B streptococcal toxic shock-like syndrome in nonpregnant adults and characterization of the strains in Japan. Jpn J Infect Dis 2006; 59:182-5. [PMID: 16785700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nine group B streptococci (GBS) strains were isolated from five toxic shock-like syndrome cases of nonpregnant adults in Japan from 2001 to 2005. All of them were identified as Streptococcus agalactiae. The serotypes of these strains were Ib, III, V, and VII. Pulsed-field gel electrophoresis revealed that the patterns of the strains isolated from the different patients were variable. Antimicrobial susceptibility tests showed that all of the strains were susceptible to penicillin G, ampicillin, cefotaxime, clindamycin, and telithromycin. One strain showed intermediate resistance to erythromycin.
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Affiliation(s)
- Bin Chang
- Department of Bacteriology, National Institute of Infectious Diseases, Toyama, Tokyo 162-8640, Japan
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Tanaka D, Isobe J, Kimata K, Shima T, Watahiki M. [Molecular analysis of streptococcal pyrogenic exotoxin genes among group A Streptococcus isolates from Japanese patients with pharyngitis and skin infections]. ACTA ACUST UNITED AC 2005; 79:443-50. [PMID: 16119802 DOI: 10.11150/kansenshogakuzasshi1970.79.443] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Group A Streptococci (GAS) from patients with pharyngitis and skin infections were examined for T serotypes, emm types, and streptococcal pyrogenic exotoxin gene types. The results were summarized as follows: 1) T and emm types were determined in 130 GAS isolates obtained between 2000 and 2004. Among 85 throat isolates, predominant T/emm types were T12/emm12 (25%), T4/emm4 (19%), and T1/emm1 (14%). Among 45 skin isolates, predominant T/emm types were T28/emm28 (13%), TB 3264/emm89 (13%), Tnontypeable/emm58 (13%), T1/emm1 (11%), and T12/emm12 (11%). Predominant T/emm types of skin isolates in 2000-2004 slightly differed from those during 1990s in our previous report. 2) The presence of streptococcal pyrogenic exotoxin genes in 292 GAS isolates obtained between 1990 and 2004 was examined. Significantly lower proportion of skin isolates, compared with throat isolates, was found to harbor the speA gene (12 versus 26%, respectively; p<0.01), or the speC gene (40 versus 65%, respectively; P<0.01). All but one of tested isolates carried the speB gene. The speB-negative isolate was identified as S. dysgalactiae subsp. equisimilis with the group A antigen. 3) Types of the speA alleles were determined in 59 speA-positive GAS isolates. Among 44 throat isolates, 37 (84%) were speA lineage I (speA1-speA2-speA3-speA6), and 7 (16%) were lineage II (speA4-speA5). Among 15 skin isolates, 11 (73%) were lineage I and 4 (27%) were lineage II. The pairwise associations were observed between emm type and speA allele: emm1 and speA2, emm3 and speA3, emm6 and speA4, emm11 and speA2, emm18 and speA1.
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39
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Ikebe T, Hirasawa K, Suzuki R, Isobe J, Tanaka D, Katsukawa C, Kawahara R, Tomita M, Ogata K, Endoh M, Okuno R, Watanabe H. Antimicrobial susceptibility survey of Streptococcus pyogenes isolated in Japan from patients with severe invasive group A streptococcal infections. Antimicrob Agents Chemother 2005; 49:788-90. [PMID: 15673769 PMCID: PMC547282 DOI: 10.1128/aac.49.2.788-790.2005] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We assessed antimicrobial susceptibility against 211 Streptococcus pyogenes strains isolated from patients with severe invasive group A streptococcal infections. Overall, 3.8, 1.4, 1.4, and 0.5% of the isolates were resistant to erythromycin, clindamycin, telithromycin, and ciprofloxacin, respectively, and 10.4% had intermediate resistance to ciprofloxacin. All isolates were susceptible to ampicillin and cefotaxime.
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Affiliation(s)
- Tadayoshi Ikebe
- Department of Bacteriology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
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40
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Matsumoto M, Sakae K, Ohta M, Endo M, Okuno R, Murayama S, Hirasawa K, Suzuki R, Isobe J, Tanaka D, Katsukawa C, Tamaru A, Tomita M, Ogata K, Yasuoka T, Ikebe T, Watanabe H. Molecular mechanisms of high level tetracycline-resistance in group A streptococcal isolates, T serotypes 4 and 11. Int J Antimicrob Agents 2005; 25:142-7. [PMID: 15664484 DOI: 10.1016/j.ijantimicag.2004.09.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2004] [Accepted: 09/17/2004] [Indexed: 11/28/2022]
Abstract
The molecular mechanism of high level tetracycline resistance in T serotypes 4 and 11 group A streptococcal (GAS) isolates was examined in 61 tetracycline-resistant isolates in Japan. PCR and sequencing analyses revealed that the T serotype/emm genotype, T4/4 isolates carried tet(O) genes, which were genetically homogenous. The T11/11 and T11/89 isolates carried different subtypes of tet(M) genes, which were present on transposons Tn916 and Tn1545, respectively. In addition, these T11 isolates may have obtained the tet(M) gene after the 1990s, because resistance to tetracycline in T11 isolates was rarely found before then. These results strongly suggested that the T4 and T11 GAS isolates acquired tetracycline-resistance via different molecular mechanisms.
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Affiliation(s)
- Masakado Matsumoto
- Department of Microbiology, Aichi Prefectural Institute of Public Health, Nagoya 462-8576, Japan.
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41
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Okubo K, Ueno Y, Isobe J, Kato T. Emergent pneumonectomy for hemoptysis in a patient with previous thoracoplasty. J Cardiovasc Surg (Torino) 2004; 45:515-7. [PMID: 15736576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Hemoptysis is a life-threatening episode of respiratory disease. By means of every possible treatment, hemostasis should be obtained to secure the airway as well as to prevent blood loss. We describe an emergent pneumonectomy for massive hemoptysis from destroyed lung in a patient with previous thoracoplasty. After prolonged ventilation support postoperatively, the patient with compromised lung function recovered well.
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Affiliation(s)
- K Okubo
- General Thoracic Surgery, Gifu National Hospital, Gifu, Japan.
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42
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Ikebe T, Murayama S, Saitoh K, Yamai S, Suzuki R, Isobe J, Tanaka D, Katsukawa C, Tamaru A, Katayama A, Fujinaga Y, Hoashi K, Watanabe H. Surveillance of severe invasive group-G streptococcal infections and molecular typing of the isolates in Japan. Epidemiol Infect 2004; 132:145-9. [PMID: 14979600 PMCID: PMC2870088 DOI: 10.1017/s0950268803001262] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The number of patients with severe invasive group-G streptococcal (Streptococcus dysgalactiae subsp. equisimilis) infections has been increasing in Japan. The emm genotypes and SmaI-digested pulsed-field gel electrophoresis DNA profiles were variable among the strains isolated, suggesting there has not been clonal expansion of a specific subpopulation of strains. However, all strains carried scpA, ska, slo and sag genes, some of which may be involved in the pathogenesis of the disease.
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Affiliation(s)
- T Ikebe
- Department of Bacteriology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
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Abstract
Shiga-like-toxin-producing Esherichia coli O128:HNM were isolated from feces of a one-year-old boy with diarrhea and abdominal pain on July, 2002, and a 11-month-old girl with diarrhea and fever on June, 1997. None of other enteropathogenic bacteria including Salmonella were isolated. E. coli O128:HNM isolates from both patients carry stx2f and eaeA gene, but not stx1, stx2, aggR, bfpA, esth, estp, invE, astA, ureC and hlyA gene. As far as we know, this may be the first report indicating that E. coli O128:HNM carrying stx2f gene were isolated from patients in Japan.
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Okamoto T, Okubo K, Isobe J, Ueno Y. [Pulmonary thromboembolism after videothoracoscopic excision of a mediastinal tumor; report of a case]. Kyobu Geka 2003; 56:889-92. [PMID: 13677929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
Abstract
We experienced a case of pulmonary thromboembolism after videothoracoscopic excision of a mediastinal tumor. A 57-year-old woman underwent videothoracoscopic excision of an upper mediastinal tumor, which was pathologically diagnosed as neurilemmoma. On the first postoperative day, she suddenly suffered from fatigue and blood-gas analysis showed hypoxemia. No abnormal shadow was seen on chest X-ray. Lung perfusion scintigram showed multiple embolism. She was treated with anticoagulants and recovered well. We should pay attention to the possibility of pulmonary thromboembolism after video-assisted thoracic surgery as well as thoracotomy, especially when patients have risk factors for pulmonary thromboembolism.
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Affiliation(s)
- T Okamoto
- Department of Thoracic Surgery, National Gifu Hospital, Gifu, Japan
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45
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Ikebe T, Murai N, Endo M, Okuno R, Murayama S, Saitoh K, Yamai S, Suzuki R, Isobe J, Tanaka D, Katsukawa C, Tamaru A, Katayama A, Fujinaga Y, Hoashi K, Ishikawa J, Watanabe H. Changing prevalent T serotypes and emm genotypes of Streptococcus pyogenes isolates from streptococcal toxic shock-like syndrome (TSLS) patients in Japan. Epidemiol Infect 2003; 130:569-72. [PMID: 12825743 PMCID: PMC2869995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
We surveyed T serotypes and emm genotypes of Streptococcus pyogenes isolates from streptococcal toxic shock-like syndrome (TSLS) patients. T1 (emm1) remained dominant through 1992 to 2000, but the dominant T3 (emm3.1) strains from 1992 to 1995 disappeared during 1996-2000. Strains of several emm genotypes emerged during 1996-2000, indicating alterations in the prevalent strains causing TSLS.
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Affiliation(s)
- T Ikebe
- Department of Bacteriology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
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46
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Tanaka D, Isobe J, Hosorogi S, Kimata K, Shimizu M, Katori K, Gyobu Y, Nagai Y, Yamagishi T, Karasawa T, Nakamura S. An outbreak of food-borne gastroenteritis caused by Clostridium perfringens carrying the cpe gene on a plasmid. Jpn J Infect Dis 2003; 56:137-9. [PMID: 12944687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Affiliation(s)
- Daisuke Tanaka
- Department of Bacteriology, Toyama Institute of Health, Toyama 939-0363, Japan.
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Tanaka D, Gyobu Y, Kodama H, Isobe J, Hosorogi S, Hiramoto Y, Karasawa T, Nakamura S. emm Typing of group A streptococcus clinical isolates: identification of dominant types for throat and skin isolates. Microbiol Immunol 2003; 46:419-23. [PMID: 12222927 DOI: 10.1111/j.1348-0421.2002.tb02715.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
T and emm types were determined for group A streptococci isolated from patients with various infections during 1990-1999 in Toyama Prefecture, Japan. Out of 906 isolates, 872 isolates were divided into 20 T serotypes, and 34 isoltes were T nontypeable (TNT). T12, T1, and T4 were dominant among 699 throat isolates; on the other hand, T11, T28, TB3264, and TNT were dominant among 80 skin isolates. The emm types of 190 isolates were determined following specific PCR amplification and sequencing of the products. Twenty T serotypes were divided into 34 T type/emm type combinations. Thirty-four TNT isolates were divided into 14 emm types, in which emm58 was the most common (38%). Among 82 throat isolates randomly selected, predominant T types T12, T1, and T4 isolates were of the respective same numbers in emm type. T11/emm89, T28/emm28, TB3264/emm13w, and TNT/emm58 were predominant among 80 skin isolates. emm-type distribution observed in the present study was that usually reported in the western world. To our knowledge, 3 T/emm is a novel combination. These results show that emm typing allows the characterization of group A streptococci from various sources.
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Affiliation(s)
- Daisuke Tanaka
- Department of Bacteriology, Toyama Institute of Health, Kosugi, Japan.
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48
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Okamoto T, Okubo K, Miyamoto N, Kurahashi Y, Isobe J, Ueno Y, Katoh T. [Concomitant lobectomy for lung cancer under intraaortic balloon pumping and coronary bypass grafting]. Kyobu Geka 2002; 55:1014-7. [PMID: 12428334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
A 71-year-old man was admitted because of an abnormal shadow on the chest X-ray film. Chest computed tomography (CT) revealed a tumor in the right upper lobe. The diagnosis of lung cancer was made by transbronchial lung biopsy. He had suffered an infarction of the inferior myocardial wall at the age of 55 years. Preoperative coronary angiography revealed total occlusion of segment 1, 75% stenosis of segments 5 and 6, and 90% stenosis of segment 13. Since these coronary lesions could cause perioperative and postoperative myocardial infarction, the patient was scheduled to undergo surgery of both the heart and lung in a one-stage operation. Under intraaortic balloon pumping (IABP), we performed a right upper lobectomy of the lung, and coronary artery bypass grafting with cardiopulmonary bypass through median sternotomy. During the lobectomy and first postoperative day, a stable circulation was achieved with IABP. The postoperative course was uneventful. At present, that is 33 months after the operation, the patient presents no sighs of recurrence of lung cancer and has not suffered any anginal attack during follow-up. Lung cancer and coronary artery disease can be treated simultaneously by this procedure.
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Affiliation(s)
- T Okamoto
- Department of Thoracic Surgery, National Gifu Hospital, Gifu, Japan
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49
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Tanaka D, Yotaku G, Isobe J, Hosorogi S, Shimizu M, Katori K, Nagai Y, Fuchi Y, Yatsuyanagi J, Saito S, Kudaka J, Nakamura S. Molecular epidemiology of group A streptococci T serotype 1. Jpn J Infect Dis 2002; 55:89-90. [PMID: 12195050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Affiliation(s)
- Daisuke Tanaka
- Department of Bacteriology, Toyama Institute of Health, Toyama 939-0363, Japan
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50
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Okubo K, Ueno Y, Isobe J, Kato T. Emergent pneumonectomy for hemoptysis in a patient with previous thoracoplasty. J Cardiovasc Surg (Torino) 2002; 43:123-5. [PMID: 11803343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Hemoptysis is a life-threatening episode of respiratory disease. By means of every possible treatment, hemostasis should be obtained to secure the airway as well as to prevent blood loss. We describe an emergency pneumonectomy for massive hemoptysis from destroyed lung in a patient with previous thoracoplasty. After the prolonged ventilation support postoperatively, the patient with compromised lung function recovered well.
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Affiliation(s)
- K Okubo
- General Thoracic Surgery, Gifu National Hospital, Gifu, Japan.
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