Norovirus infections in symptomatic and asymptomatic food handlers in Japan.

Abstract:

:Noroviruses are the leading cause of outbreaks of gastroenteritis in the world. At present, norovirus genogroup II, genotype 4 (GII/4), strains are the most prevalent in many countries. In this study we investigated 55 outbreaks and 35 sporadic cases of norovirus-associated gastroenteritis in food handlers in food-catering settings between 10 November 2005 and 9 December 2006 in Japan. Stool specimens were collected from both symptomatic and asymptomatic individuals and were examined for norovirus by real-time reverse transcription-PCR; the results were then confirmed by sequence analysis. Norovirus was detected in 449 of 2,376 (19%) specimens. Four genogroup I (GI) genotypes and 12 GII genotypes, including one new GII genotype, were detected. The GII/4 sequences were predominant, accounting for 19 of 55 (35%) outbreaks and 16 of 35 (46%) sporadic cases. Our results also showed that a large number of asymptomatic food handlers were infected with norovirus GII/4 strains. Norovirus GII had a slightly higher mean viral load (1 log unit higher) than norovirus GI, i.e., 3.81 x 10(8) versus 2.79 x 10(7) copies/g of stool. Among norovirus GI strains, GI/4 had the highest mean viral load, whereas among GII strains, GII/4 had the highest mean viral load (2.02 x 10(8) and 7.96 x 10(9) copies/g of stool, respectively). Importantly, we found that asymptomatic individuals had mean viral loads similar to those of symptomatic individuals, which may account for the increased number of infections and the predominance of an asymptomatic transmission route.

journal_name

J Clin Microbiol

authors

Ozawa K,Oka T,Takeda N,Hansman GS

doi

10.1128/JCM.01516-07

subject

Has Abstract

pub_date

2007-12-01 00:00:00

pages

3996-4005

issue

12

eissn

0095-1137

issn

1098-660X

pii

JCM.01516-07

journal_volume

45

pub_type

杂志文章
  • Use of Haemophilus test medium for broth microdilution antimicrobial susceptibility testing of Streptococcus pneumoniae.

    abstract::A recently described medium (Haemophilus test medium [HTM]) for antimicrobial susceptibility testing of Haemophilus influenzae was evaluated in this study for broth microdilution testing of Streptococcus pneumoniae. A total of 137 clinical isolates was tested against 11 antimicrobial agents, using Mueller-Hinton broth...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.28.3.430-434.1990

    authors: Jorgensen JH,Maher LA,Howell AW

    更新日期:1990-03-01 00:00:00

  • Predominance of the ac variant in K88-positive Escherichia coli isolates from swine.

    abstract::Monoclonal antibodies to K88ac and K88ab were used in enzyme-linked immunosorbent assays on Escherichia coli cultures known to produce K88 pili. A total of 415 K88-positive E. coli isolates from nine states were all found to be the K88ac variant. The cultures tested were isolated during the years 1976 to 1985. ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.26.1.149-150.1988

    authors: Westerman RB,Mills KW,Phillips RM,Fortner GW,Greenwood JM

    更新日期:1988-01-01 00:00:00

  • Clinical laboratory evaluation of a system approach to the recognition of nonfermentative or oxidase-producing gram-negative, rod-shaped bacteria.

    abstract::The Oxi-ferm tube, an eight-compartment system suitable for the recognition of nonfermentative, gram-negative, rod-shaped bacteria, was evaluated in conjunction with the oxidase test in a clinical microbiology laboratory setting. A comparison between this system and the 17-test routine examination was performed with 2...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:

    authors: Isenberg HD,Sampson-Scherer J

    更新日期:1977-03-01 00:00:00

  • Complex febrile seizures followed by complete recovery in an infant with high-titer 2009 pandemic influenza A (H1N1) virus infection.

    abstract::We describe a 2009 H1N1 virus infection with a high viral load in a previously healthy infant who presented with complex febrile seizures and improved on oseltamivir without neurologic sequelae. Febrile seizures may be a complication in young children experiencing infection with high viral loads of 2009 H1N1 influenza...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.00825-10

    authors: O'Leary MF,Chappell JD,Stratton CW,Cronin RM,Taylor MB,Tang YW

    更新日期:2010-10-01 00:00:00

  • Pseudomonas mendocina, an environmental bacterium isolated from a patient with human infective endocarditis.

    abstract::Pseudomonas mendocina has been isolated from soil and water samples. Although it has been recovered from some human clinical samples, its pathogenic role has not yet been documented. We report the first known case of endocarditis in humans due to P. mendocina. ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.30.6.1583-1584.1992

    authors: Aragone MR,Maurizi DM,Clara LO,Navarro Estrada JL,Ascione A

    更新日期:1992-06-01 00:00:00

  • A cluster of cases of Escherichia coli O157 infection in a day-care center in a communal settlement (Kibbutz) in Israel.

    abstract::This is the first report in Israel of a cluster of cases of diarrhea associated with the isolation of Escherichia coli O157 in stool samples. E. coli O157:NM (nonmotile), producing verotoxins 1 and 2 was isolated from the stool samples of three infants less than 1 year of age with diarrhea and from a fourth asymptomat...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.30.2.520-521.1992

    authors: Lerman Y,Cohen D,Gluck A,Ohad E,Sechter I

    更新日期:1992-02-01 00:00:00

  • Mechanical homogenization increases bacterial homogeneity in sputum.

    abstract::Sputum obtained from patients with cystic fibrosis (CF) is highly viscous and often heterogeneous in bacterial distribution. Adding dithiothreitol (DTT) is the standard method for liquefaction prior to processing sputum for molecular detection assays. To determine if DTT treatment homogenizes the bacterial distributio...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.00487-14

    authors: Stokell JR,Khan A,Steck TR

    更新日期:2014-07-01 00:00:00

  • New cause for false-positive results with the cryptococcal antigen test by latex agglutination.

    abstract::The highly specific and sensitive latex agglutination test for cryptococcal antigen detection in cerebrospinal fluid is routine in many hospitals. Contamination of cerebrospinal fluid by a minute amount of syneresis fluid (surface condensation) from agar gave a strongly positive reaction which was heat stable, was not...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.22.5.856-857.1985

    authors: Boom WH,Piper DJ,Ruoff KL,Ferraro MJ

    更新日期:1985-11-01 00:00:00

  • MIC quality control guidelines and disk diffusion test optimization for CEM-101, a novel fluoroketolide.

    abstract::The development of diagnostic susceptibility tests for CEM-101, a new fluoroketolide, was addressed by structured studies to determine the optimal disk diffusion test concentration and effects of various testing conditions or supplements and to establish the quality control (QC) ranges for reference broth microdilutio...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.01992-09

    authors: Jones RN,Ross JE,Rhomberg PR,Quality Control Working Group.

    更新日期:2010-04-01 00:00:00

  • Investigation of apparent false-positive urine latex particle agglutination tests for the detection of group B streptococcus antigen.

    abstract::In our nursery, we identified neonates with positive urine latex particle agglutination (LPA) tests for group B streptococcus (GBS) antigen who did not have corroborating cultural evidence of infection. To investigate the mechanisms underlying these apparent false-positive reactions, we examined the urine LPA test in ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.27.10.2214-2217.1989

    authors: Harris MC,Deuber C,Polin RA,Nachamkin I

    更新日期:1989-10-01 00:00:00

  • Improvement of PCR for detection of Opisthorchis viverrini DNA in human stool samples.

    abstract::Opisthorchis viverrini is an important food-borne trematode in Southeast Asia. The infection causes significant morbidity in terms of hepatobiliary diseases and cholangiocarcinoma. The aim of this study was to improve the sensitivity of the PCR-based diagnosis of O. viverrini infection. A new fecal DNA extraction prot...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.01323-07

    authors: Duenngai K,Sithithaworn P,Rudrappa UK,Iddya K,Laha T,Stensvold CR,Strandgaard H,Johansen MV

    更新日期:2008-01-01 00:00:00

  • Diagnostic assessment of an enzyme-linked immunosorbent assay for human and canine blastomycosis.

    abstract::An enzyme-linked immunosorbent assay (ELISA) for blastomycosis was evaluated with 65 human sera from culturally or histologically proven cases of blastomycosis, 53 sera from humans with heterologous infections, and 115 sera from apparently normal people. The diagnostic value of the ELISA was compared with that of the ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.23.2.294-297.1986

    authors: Turner S,Kaufman L,Jalbert M

    更新日期:1986-02-01 00:00:00

  • Multidrug-Resistant Candida auris Misidentified as Candida haemulonii: Characterization by Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry and DNA Sequencing and Its Antifungal Susceptibility Profile Variability by Vitek 2, CL

    abstract::Candida auris is a multidrug-resistant yeast that causes a wide spectrum of infections, especially in intensive care settings. We investigated C. auris prevalence among 102 clinical isolates previously identified as Candida haemulonii or Candida famata by the Vitek 2 system. Internal transcribed spacer region (ITS) se...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.00367-15

    authors: Kathuria S,Singh PK,Sharma C,Prakash A,Masih A,Kumar A,Meis JF,Chowdhary A

    更新日期:2015-06-01 00:00:00

  • Evaluation of infection with human immunodeficiency virus type 1 by using nonisotopic solution hybridization for detection of polymerase chain reaction-amplified proviral DNA.

    abstract::A convenient assay combining solution hybridization and enzyme immunoassay for DNA-RNA hybrids (polymerase chain reaction-enzyme immunoassay [PCR-EIA]) was developed to detect human immunodeficiency virus type 1 (HIV-1) provirus amplified by the PCR and was compared with oligomer hybridization with 32P-labeled SK19. I...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.29.11.2461-2467.1991

    authors: Coutlée F,Saint-Antoine P,Olivier C,Voyer H,Kessous-Elbaz A,Berrada F,Bégin P,Giroux L,Viscidi R

    更新日期:1991-11-01 00:00:00

  • Subgenotype analysis of Cryptosporidium isolates from humans, cattle, and zoo ruminants in Portugal.

    abstract::Cryptosporidium parvum and Cryptosporidium hominis isolates from human immunodeficiency virus-infected patients, cattle, and wild ruminants were characterized by PCR and DNA sequencing analysis of the 60-kDa glycoprotein gene. Seven alleles were identified, three corresponding to C. hominis and four corresponding to C...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/jcm.41.6.2744-2747.2003

    authors: Alves M,Xiao L,Sulaiman I,Lal AA,Matos O,Antunes F

    更新日期:2003-06-01 00:00:00

  • Numerical analysis of electrophoretic protein patterns of methicillin-resistant strains of Staphylococcus aureus.

    abstract::A total of 50 strains of Staphylococcus aureus, including 41 methicillin-resistant S. aureus (MRSA) strains, were characterized by one-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis of whole-cell proteins. The protein patterns contained 40-50 discrete bands and were highly reproducible. Partial ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.27.11.2574-2581.1989

    authors: Costas M,Cookson BD,Talsania HG,Owen RJ

    更新日期:1989-11-01 00:00:00

  • Interlaboratory comparison of sequence-specific PCR and ligase detection reaction to detect a human immunodeficiency virus type 1 drug resistance mutation. The AIDS Clinical Trials Group Virology Committee Drug Resistance Working Group.

    abstract::Sequence-specific PCR was used in six laboratories and a ligase detection reaction was used in one laboratory to detect the zidovudine-resistance mutation at codon 215 of human immunodeficiency virus type 1 (HIV-1) reverse transcriptase DNA. The genotypes of 27 different clinical samples, including cultured HIV-1 isol...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.34.7.1849-1853.1996

    authors: Shafer RW,Winters MA,Mayers DL,Japour AJ,Kuritzkes DR,Weislow OS,White F,Erice A,Sannerud KJ,Iversen A,Pena F,Dimitrov D,Frenkel LM,Reichelderfer PS

    更新日期:1996-07-01 00:00:00

  • Direct identification of bacterial isolates in blood cultures by using a DNA probe.

    abstract::This study involved the rapid, direct identification of Staphylococcus aureus, Streptococcus pneumoniae, Escherichia coli, Haemophilus influenzae, Enterococcus sp., and Streptococcus agalactiae from positive blood culture bottles (BACTEC, Johnston Laboratories, Inc.) by using the AccuProbe (Gen-Probe, San Diego, Calif...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.29.10.2193-2196.1991

    authors: Davis TE,Fuller DD

    更新日期:1991-10-01 00:00:00

  • Comparison of in-house real-time quantitative PCR to the Adenovirus R-Gene kit for determination of adenovirus load in clinical samples.

    abstract::In the context of hematopoietic stem cell transplantation, adenovirus infections are associated with relevant mortality and morbidity. Detection of adenovirus DNA by quantitative PCR is the "gold standard" for these patients. A total of 150 samples, namely, 78 whole-blood, 22 cerebrospinal fluid, 24 digestive biopsy, ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.00976-10

    authors: Jeulin H,Salmon A,Bordigoni P,Venard V

    更新日期:2010-09-01 00:00:00

  • Clinical use of 16S rRNA gene sequencing to identify Mycoplasma felis and M. gateae associated with feline ulcerative keratitis.

    abstract::Routine bacterial cultures of corneal scrapings from seven cats with either ulcerative feline keratitis, keratomalacia, or both yielded colonies which were identified by 16S rRNA gene sequencing as Mycoplasma felis (six cases) and Mycoplasma gateae (one case). Identification of the pathogens allowed the use of less em...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.43.7.3431-3434.2005

    authors: Gray LD,Ketring KL,Tang YW

    更新日期:2005-07-01 00:00:00

  • Genetic similarity and phenotypic diversity of commensal and pathogenic strains of Candida albicans isolated from the oral cavity.

    abstract::Colony phenotype and genetic similarity were assessed within and between groups of commensal and pathogenic strains of Candida albicans collected from the oral cavities of individuals in a single geographical locale. Thirty-eight percent of pathogenic isolates contained predominant or minor variant colony morphologies...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.31.12.3190-3199.1993

    authors: Hellstein J,Vawter-Hugart H,Fotos P,Schmid J,Soll DR

    更新日期:1993-12-01 00:00:00

  • Solid-phase antibody capture hemadsorption assay for detection of hepatitis A virus immunoglobulin M antibodies.

    abstract::A solid-phase antibody capture hemadsorption (SPACH) assay was developed to detect hepatitis A virus (HAV)-specific immunoglobulin M (IgM) antibodies in sera from humans recently infected with hepatitis. The assay is performed with microtiter plates coated with anti-human IgM antibodies to capture IgM antibodies from ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.31.5.1299-1302.1993

    authors: Summers PL,Dubois DR,Cohen WH,Macarthy PO,Binn LN,Sjogren MH,Snitbhan R,Innis BL,Eckels KH

    更新日期:1993-05-01 00:00:00

  • Detection by gas chromatography of 3-deoxy-D-manno-2-octulosonic acid and L-glycero-D-manno-heptose in whole cells of Neisseria elongata.

    abstract::Lipopolysaccharide components 3-deoxy-D-manno-2-octulosonic acid and L-glycero-D-manno-heptose were detected in hydrolysates from whole cells of Neisseria elongata by gas-liquid chromatography. Cells from a single plate were hydrolyzed, and carbohydrate components were converted to aldononitrile and O-methyloxime acet...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.23.3.425-430.1986

    authors: Guerrant GO,Moss CW

    更新日期:1986-03-01 00:00:00

  • Analysis with restriction endonucleases recognizing 4- or 5-base-pair sequences of human adenovirus type 3 isolated from ocular diseases in Sapporo, Japan.

    abstract::A total of 49 adenovirus type 3 (Ad3) strains from patients with epidemic keratoconjunctivitis at an eye clinic in Sapporo, Japan, from 1983 to 1986 were classified into either genome type Ad3f (26 strains) or Ad3g (23 strains). By the use of Hinf1 and TaqI restriction endonucleases, they were classified into 11 and 3...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.28.10.2365-2369.1990

    authors: Itakura S,Aoki K,Sawada H,Shinagawa M

    更新日期:1990-10-01 00:00:00

  • Preparation and use of erythrocyte-globulin conjugates to Lassa virus in reversed passive hemagglutination and inhibition.

    abstract::Conditions were defined for functional covalent coupling of anti-Lassa virus globulins to glutaraldehyde-fixed chicken erythrocytes. Tolylene-2,4-diisocyanate in a reaction mixture containing not more than 0.01 M NaCl produced uniformly good conjugates which were used in reversed passive hemagglutination (RPH) and rev...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.11.6.593-599.1980

    authors: Goldwasser RA,Elliott LH,Johnson KM

    更新日期:1980-06-01 00:00:00

  • Multicenter comparison of serum and whole-blood specimens for detection of Aspergillus DNA in high-risk hematological patients.

    abstract::Samples from patients at high risk for invasive aspergillosis (IA) were prospectively collected and analyzed for the presence of molecular markers of fungal infection. Serum specimens were screened for galactomannan and Aspergillus DNA, and whole-blood specimens were screened only for Aspergillus DNA. Fungal infection...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章,多中心研究

    doi:10.1128/JCM.03322-12

    authors: Springer J,Morton CO,Perry M,Heinz WJ,Paholcsek M,Alzheimer M,Rogers TR,Barnes RA,Einsele H,Loeffler J,White PL

    更新日期:2013-05-01 00:00:00

  • Evaluation of an Optimal Epidemiological Typing Scheme for Legionella pneumophila with Whole-Genome Sequence Data Using Validation Guidelines.

    abstract::Sequence-based typing (SBT), analogous to multilocus sequence typing (MLST), is the current "gold standard" typing method for investigation of legionellosis outbreaks caused by Legionella pneumophila However, as common sequence types (STs) cause many infections, some investigations remain unresolved. In this study, va...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.00432-16

    authors: David S,Mentasti M,Tewolde R,Aslett M,Harris SR,Afshar B,Underwood A,Fry NK,Parkhill J,Harrison TG

    更新日期:2016-08-01 00:00:00

  • Effect of aerobic and anaerobic atmospheres on isolation of organisms from blood cultures.

    abstract::Blood was cultured in two vacuum bottles containing Columbia broth. Filtered air was admitted to one bottle (aerobic); the unvented bottle was considered anaerobic. Cultures were incubated at 35 C until growth occurred or for at least 7 days. Of 744 organisms isolated, 50% were isolated from both bottles, 30% from the...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.1.2.154-156.1975

    authors: Blazevic DJ,Stemper JE,Matsen JM

    更新日期:1975-02-01 00:00:00

  • Identification of group C streptococcal antigen extracts with lectin-bound polystyrene particles.

    abstract::Crude extracts of Dolichos biflorus can be coupled to polystyrene particles to yield an agglutination reagent for the detection of group C streptococcal antigen extracts. The reagent is relatively inexpensive and simple to prepare and can be employed for the definitive identification of this beta-hemolytic streptococc...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.19.1.83-84.1984

    authors: Slifkin M,Gil GM

    更新日期:1984-01-01 00:00:00

  • Detection and quantification of latently infected B lymphocytes in Epstein-Barr virus-seropositive, healthy individuals by polymerase chain reaction.

    abstract::We designed a highly sensitive and specific polymerase chain reaction assay for the detection of Epstein-Barr virus (EBV)-related sequences in B-cell DNA of EBV-seropositive healthy individuals. By using this assay, we were able to amplify at least 10 copies of a plasmid containing the BamHI-W region, which is repeate...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.30.11.2826-2829.1992

    authors: Wagner HJ,Bein G,Bitsch A,Kirchner H

    更新日期:1992-11-01 00:00:00