Molecular diagnosis of respiratory virus infections.
Identifieur interne : 006730 ( Main/Exploration ); précédent : 006729; suivant : 006731Molecular diagnosis of respiratory virus infections.
Auteurs : James B. Mahony [Canada] ; Astrid Petrich ; Marek SmiejaSource :
- Critical reviews in clinical laboratory sciences [ 1549-781X ]
Descripteurs français
- KwdFr :
- ADN viral (analyse), ARN viral (analyse), Humains, Infections de l'appareil respiratoire (diagnostic), Infections de l'appareil respiratoire (virologie), Maladies virales (diagnostic), Maladies virales (virologie), Résistance virale aux médicaments, Techniques d'amplification d'acides nucléiques, Techniques de diagnostic moléculaire, Virus (génétique), Virus (isolement et purification).
- MESH :
- analyse : ADN viral, ARN viral.
- diagnostic : Infections de l'appareil respiratoire, Maladies virales.
- génétique : Virus.
- isolement et purification : Virus.
- virologie : Infections de l'appareil respiratoire, Maladies virales.
- Humains, Résistance virale aux médicaments, Techniques d'amplification d'acides nucléiques, Techniques de diagnostic moléculaire.
English descriptors
- KwdEn :
- DNA, Viral (analysis), Drug Resistance, Viral, Humans, Molecular Diagnostic Techniques, Nucleic Acid Amplification Techniques, RNA, Viral (analysis), Respiratory Tract Infections (diagnosis), Respiratory Tract Infections (virology), Virus Diseases (diagnosis), Virus Diseases (virology), Viruses (genetics), Viruses (isolation & purification).
- MESH :
- chemical , analysis : DNA, Viral, RNA, Viral.
- diagnosis : Respiratory Tract Infections, Virus Diseases.
- genetics : Viruses.
- isolation & purification : Viruses.
- virology : Respiratory Tract Infections, Virus Diseases.
- Drug Resistance, Viral, Humans, Molecular Diagnostic Techniques, Nucleic Acid Amplification Techniques.
Abstract
The appearance of eight new respiratory viruses, including the SARS coronavirus in 2003 and swine-origin influenza A/H1N1 in 2009, in the human population in the past nine years has tested the ability of virology laboratories to develop diagnostic tests to identify these viruses. Nucleic acid based amplification tests (NATs) for respiratory viruses were first introduced two decades ago and today are utilized for the detection of both conventional and emerging viruses. These tests are more sensitive than other diagnostic approaches, including virus isolation in cell culture, shell vial culture (SVC), antigen detection by direct fluorescent antibody (DFA) staining, and rapid enzyme immunoassay (EIA), and now form the backbone of clinical virology laboratory testing around the world. NATs not only provide fast, accurate and sensitive detection of respiratory viruses in clinical specimens but also have increased our understanding of the epidemiology of both new emerging viruses such as the pandemic H1N1 influenza virus of 2009, and conventional viruses such as the common cold viruses, including rhinovirus and coronavirus. Multiplex polymerase chain reaction (PCR) assays introduced in the last five years detect up to 19 different viruses in a single test. Several multiplex PCR tests are now commercially available and tests are working their way into clinical laboratories. The final chapter in the evolution of respiratory virus diagnostics has been the addition of allelic discrimination and detection of single nucleotide polymorphisms associated with antiviral resistance. These assays are now being multiplexed with primary detection and subtyping assays, especially in the case of influenza virus. These resistance assays, together with viral load assays, will enable clinical laboratories to provide physicians with new and important information for optimal treatment of respiratory virus infections.
DOI: 10.3109/10408363.2011.640976
PubMed: 22185616
Affiliations:
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Le document en format XML
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<front><div type="abstract" xml:lang="en">The appearance of eight new respiratory viruses, including the SARS coronavirus in 2003 and swine-origin influenza A/H1N1 in 2009, in the human population in the past nine years has tested the ability of virology laboratories to develop diagnostic tests to identify these viruses. Nucleic acid based amplification tests (NATs) for respiratory viruses were first introduced two decades ago and today are utilized for the detection of both conventional and emerging viruses. These tests are more sensitive than other diagnostic approaches, including virus isolation in cell culture, shell vial culture (SVC), antigen detection by direct fluorescent antibody (DFA) staining, and rapid enzyme immunoassay (EIA), and now form the backbone of clinical virology laboratory testing around the world. NATs not only provide fast, accurate and sensitive detection of respiratory viruses in clinical specimens but also have increased our understanding of the epidemiology of both new emerging viruses such as the pandemic H1N1 influenza virus of 2009, and conventional viruses such as the common cold viruses, including rhinovirus and coronavirus. Multiplex polymerase chain reaction (PCR) assays introduced in the last five years detect up to 19 different viruses in a single test. Several multiplex PCR tests are now commercially available and tests are working their way into clinical laboratories. The final chapter in the evolution of respiratory virus diagnostics has been the addition of allelic discrimination and detection of single nucleotide polymorphisms associated with antiviral resistance. These assays are now being multiplexed with primary detection and subtyping assays, especially in the case of influenza virus. These resistance assays, together with viral load assays, will enable clinical laboratories to provide physicians with new and important information for optimal treatment of respiratory virus infections.</div>
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