[Human coronavirus-NL63 was detected in specimens from children with acute respiratory infection in Beijing, China]. 2006

Ru-nan Zhu, and Yuan Qian, and Lin-qing Zhao, and Jie Deng, and Fang Wang, and Bin Liao
Laboratory of Virology, Beijing Municipal Laboratory of Infection and Immunity, Capital Institute of Pediatrics, Beijing 100020, China.

OBJECTIVE A new human coronavirus, HCoV-NL63, was identified recently from two Dutch children with acute respiratory infection (ARI) by two scientists in the Netherlands in 2004. To investigate if this newly discovered virus is associated with acute respiratory infections in pediatric patients in Beijing, tests were developed to detect HCoV-NL63 gene fragments from throat swab and nasopharyngeal aspirates collected from children in outpatient and inpatient departments with ARI in Beijing from Dec. 2003 to Mar. 2004. METHODS A total of 245 clinical samples, which were negative either for diagnostic tests of human respiratory syncytial virus, influenza virus A and B, adenovirus, parainfluenza virus 1, 2 and 3 by indirect immunofluorescence assay or human metapneumovirus by RT-PCR, were screened for HCoV-NL63 by nested PCR amplifying gene fragments located on the 1b and 1a genes. Amplicon of PCR from 1a gene of HCoV-NL63 was sequenced and the sequences were compared with those in GenBank nucleotide sequence database. RESULTS Three (1.2%) out of the 245 samples were positive for HCoV-NL63 by nested-PCR using primers on 1b gene. These three samples also showed positive results on nested PCR in which primers were designed with sequences complementary to 1a gene segments. These positive samples were collected from hospitalized children under 2 years of age with pneumonia, bronchiolitis and bronchitis, respectively. The partial 1a gene sequences from two positive samples (BJ3140 and BJ3787) of HCoV-NL63 showed 100% homology between each other and high homology (98%-99%) with the sequences of 1a gene of HCoV-NL63 reported from different countries in GenBank. Phylogenetic analysis showed that BJ3140 and BJ3787 fell into the same genetic cluster (group 1). CONCLUSIONS These data suggest that some of acute respiratory infections in young children in Beijing area are related to the newly identified HCoV-NL63.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D010802 Phylogeny The relationships of groups of organisms as reflected by their genetic makeup. Community Phylogenetics,Molecular Phylogenetics,Phylogenetic Analyses,Phylogenetic Analysis,Phylogenetic Clustering,Phylogenetic Comparative Analysis,Phylogenetic Comparative Methods,Phylogenetic Distance,Phylogenetic Generalized Least Squares,Phylogenetic Groups,Phylogenetic Incongruence,Phylogenetic Inference,Phylogenetic Networks,Phylogenetic Reconstruction,Phylogenetic Relatedness,Phylogenetic Relationships,Phylogenetic Signal,Phylogenetic Structure,Phylogenetic Tree,Phylogenetic Trees,Phylogenomics,Analyse, Phylogenetic,Analysis, Phylogenetic,Analysis, Phylogenetic Comparative,Clustering, Phylogenetic,Community Phylogenetic,Comparative Analysis, Phylogenetic,Comparative Method, Phylogenetic,Distance, Phylogenetic,Group, Phylogenetic,Incongruence, Phylogenetic,Inference, Phylogenetic,Method, Phylogenetic Comparative,Molecular Phylogenetic,Network, Phylogenetic,Phylogenetic Analyse,Phylogenetic Clusterings,Phylogenetic Comparative Analyses,Phylogenetic Comparative Method,Phylogenetic Distances,Phylogenetic Group,Phylogenetic Incongruences,Phylogenetic Inferences,Phylogenetic Network,Phylogenetic Reconstructions,Phylogenetic Relatednesses,Phylogenetic Relationship,Phylogenetic Signals,Phylogenetic Structures,Phylogenetic, Community,Phylogenetic, Molecular,Phylogenies,Phylogenomic,Reconstruction, Phylogenetic,Relatedness, Phylogenetic,Relationship, Phylogenetic,Signal, Phylogenetic,Structure, Phylogenetic,Tree, Phylogenetic
D012141 Respiratory Tract Infections Invasion of the host RESPIRATORY SYSTEM by microorganisms, usually leading to pathological processes or diseases. Respiratory System Infections,Upper Respiratory Tract Infection,Upper Respiratory Tract Infections,Infections, Respiratory,Infections, Respiratory Tract,Infections, Upper Respiratory,Infections, Upper Respiratory Tract,Respiratory Infections,Upper Respiratory Infections,Infection, Respiratory System,Infection, Respiratory Tract,Respiratory Infection, Upper,Respiratory System Infection,Respiratory Tract Infection
D002681 China A country spanning from central Asia to the Pacific Ocean. Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000208 Acute Disease Disease having a short and relatively severe course. Acute Diseases,Disease, Acute,Diseases, Acute
D012689 Sequence Homology, Nucleic Acid The sequential correspondence of nucleotides in one nucleic acid molecule with those of another nucleic acid molecule. Sequence homology is an indication of the genetic relatedness of different organisms and gene function. Base Sequence Homology,Homologous Sequences, Nucleic Acid,Homologs, Nucleic Acid Sequence,Homology, Base Sequence,Homology, Nucleic Acid Sequence,Nucleic Acid Sequence Homologs,Nucleic Acid Sequence Homology,Sequence Homology, Base,Base Sequence Homologies,Homologies, Base Sequence,Sequence Homologies, Base
D016133 Polymerase Chain Reaction In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships. Anchored PCR,Inverse PCR,Nested PCR,PCR,Anchored Polymerase Chain Reaction,Inverse Polymerase Chain Reaction,Nested Polymerase Chain Reaction,PCR, Anchored,PCR, Inverse,PCR, Nested,Polymerase Chain Reactions,Reaction, Polymerase Chain,Reactions, Polymerase Chain
D017934 Coronavirus A member of CORONAVIRIDAE which causes respiratory or gastrointestinal disease in a variety of vertebrates. Coronavirus, Rabbit,Coronaviruses,Rabbit Coronavirus,Coronaviruses, Rabbit,Rabbit Coronaviruses
D030561 Databases, Nucleic Acid Databases containing information about NUCLEIC ACIDS such as BASE SEQUENCE; SNPS; NUCLEIC ACID CONFORMATION; and other properties. Information about the DNA fragments kept in a GENE LIBRARY or GENOMIC LIBRARY is often maintained in DNA databases. DDBJ,DNA Data Bank of Japan,DNA Data Banks,DNA Databases,Databases, DNA,Databases, DNA Sequence,Databases, Nucleic Acid Sequence,Databases, RNA,Databases, RNA Sequence,EMBL Nucleotide Sequence Database,GenBank,Nucleic Acid Databases,RNA Databases,DNA Databanks,DNA Sequence Databases,European Molecular Biology Laboratory Nucleotide Sequence Database,Nucleic Acid Sequence Databases,RNA Sequence Databases,Bank, DNA Data,Banks, DNA Data,DNA Data Bank,DNA Databank,DNA Database,DNA Sequence Database,Data Bank, DNA,Data Banks, DNA,Databank, DNA,Databanks, DNA,Database, DNA,Database, DNA Sequence,Database, Nucleic Acid,Database, RNA,Database, RNA Sequence,Nucleic Acid Database,RNA Database,RNA Sequence Database,Sequence Database, DNA,Sequence Database, RNA,Sequence Databases, DNA,Sequence Databases, RNA

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