Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-12-9
pubmed:abstractText
The novel influenza A (H1N1) virus is now rapidly spreading across the world. Early detection is one of the most effective measures to prevent further transmission of the virus. 4 sets of proprietary primers and probes designed for detection of influenza A viruses (InfA), human and swine H1N1 viruses (SH1), the novel H1N1 viruses (NH1) and RNaseP gene (RP) respectively were pooled together in a single tube for a multi-fluorescent real-time RT-PCR assay. The detection limit was found to be one order more sensitive than that employing the WHO recommended protocol. The NH1 probe was negative for all control samples including human seasonal H1N1 virus, other subtypes of human influenza A viruses (H3, H5, H9), human influenza B virus and nasopharyngeal swabs from patients with noninfluenza respiratory diseases, indicating its high specificity, capable of discriminating the novel influenza A virus from the previously identified H1N1 viruses. For confirmation, the PCR amplified fragment of the hemagglutinin gene was sequenced which could provide enough information to identify the novel H1N1 virus as a distinct cluster among all viruses of subtype H1 through average distance clustering analysis. Although these assays should be useful in the current outbreak for rapid detection and discrimination of the novel H1N1 from swine H1N1 and other human seasonal H1N1 viruses, further design improvement is suggested to match possible sequence variations in the detected region along with the course of the epidemic.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1872-7492
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
147
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
85-90
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Detection of human novel influenza A (H1N1) viruses using multi-fluorescent real-time RT-PCR.
pubmed:affiliation
Shanghai-MOST Key Laboratory for Disease and Health Genomics, Chinese National Human Genome Center at Shanghai, Shanghai 201203, China.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't, Evaluation Studies