Navigation Links
H7N9 influenza: History of similar viruses gives cause for concern
Date:7/8/2013

The H7N9 avian flu strain that emerged in China earlier this year has subsided for now, but it would be a mistake to be reassured by this apparent lull in infections. The virus has several highly unusual traits that paint a disquieting picture of a pathogen that may yet lead to a pandemic, according to lead scientists from the National Institute of Allergy and Infectious Diseases. David Morens, Jeffery Taubenberger, and Anthony Fauci, in a paper published in mBio, the online open-access journal of the American Society for Microbiology, describe the history of H7 viruses in animal and human disease and point out that H7 influenza has a tendency to become established in bird, horse, and swine populations and may spillover repeatedly into humans.

"The evidence as a whole is complex and the implications of past outbreaks for predicting the future course of the current H7N9 epizootic [an epidemic among animals] are uncertain," write the authors.

The outbreak of H7N9 earlier this year led China to temporarily close scores of live poultry markets in an effort to limit the spread of the virus. Although this previously unrecognized strain of avian influenza A has now been associated with 132 confirmed human infections and 39 related deaths (as of June 14), the rate at which new cases are recognized has dwindled in recent weeks.

In their minireview, Morens, Taubenberger and Fauci point out that despite this apparent hiatus, viruses like H7N9, which have subtype 7 hemagglutinin, are a cause for heightened concern because of several highly unusual characteristics. First, H7 viruses have repeatedly been involved in numerous explosive poultry outbreaks including incidents in New York, Canada, Mexico, the Netherlands, and Italy, and in almost all of these cases the virus eventually spilled over into humans. Also, H7 viruses have the ability to mutate from a low pathogenicity form to a high pathogenicity form in birds, a scenario that can l
'/>"/>

Contact: Jim Sliwa
jsliwa@asmusa.org
202-942-9297
American Society for Microbiology
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Scientists trace evolutionary history of what mammals eat
2. Family history of liver cancer increases risk of developing the disease
3. Earth history and evolution
4. New coelacanth find rewrites history of the ancient fish
5. Biology professor secures grant to save West Virginias primary natural history collection
6. Honoring the fundamental role of microbes in the natural history of our planet
7. New report puts real numbers behind history of oyster reefs
8. IU role in Human Microbiome Project exposes battle history between bacteria, viruses in human body
9. Short stretches of piRNA evaluate cells genetic history
10. Bringing natural history collections out of the dark
11. Geologys Mystery Interval, the Great Deepening, and the largest kill-off in Earth history
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2014)... Research and Markets ( http://www.researchandmarkets.com/research/fx4bg3/the_global ) ... Global Watermarking and Fingerprinting Markets" report to ... This insight provides an overview ... markets. Watermarking aims to control and monitor piracy ...
(Date:12/19/2014)... 2014 Research and Markets ( http://www.researchandmarkets.com/research/86ncd6/micro_market ) has ... America Perimeter Security Systems Market" report to their offering. ... North American perimeter security market is estimated to grow at ... U.S. market holds a larger share in this market, ...
(Date:12/17/2014)... Dec. 15, 2014 Research and Markets ( ... "Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor ... http://photos.prnewswire.com/prnh/20130307/600769 Based on ... Samsung introduces for the first time a fingerprint sensor ...
Breaking Biology News(10 mins):The Global Watermarking and Fingerprinting Markets 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 3Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2
... Exploiting biology's own chemical toolbox, researchers have developed ... modify specific sequences within a DNA molecule. The ... of biochemical alterations to DNA, but could have ... , Combining chemistry with biotechnology, Saulius ...
... sparrows (Zonotrichia leucophrys gambelii) from their breeding area ... and around the magnetic North Pole, researchers have ... the high Arctic. In particular, the findings aid ... information--a challenging task, especially at the earth's poles. ...
... in Southern California suggests that water pollution varies with ... are ebbing during the new and full moon. The ... potential risk of swimming. , The report appears in ... journal Environmental Science & Technology. ACS is the world's ...
Cached Biology News:Biotechnology's newest chemical tool 2Biotechnology's newest chemical tool 3Displaced songbirds navigate in the high Arctic 2Beach pollution is worst during new and full moon 2
(Date:1/23/2015)... stimulate microbial activities in soil. These microorganisms generate plant ... in the soil or in the rhizosphere. The demand ... reducing environmental pollution and on reducing the usage of ... bio fertilizers market with analysis and forecasting of the ...
(Date:1/22/2015)... California (PRWEB) January 22, 2015 Eckert ... Accelerator Mass Spectrometry (AMS) services to the pharmaceutical and ... has joined the company in the position of Director ... years of broad and valuable experience in drug metabolism ...
(Date:1/22/2015)... GEA Niro Soavi the leader in high ... PandaPLUS 2000, which is ideal for new applications for ... disruption . This compact laboratory homogenizer is the perfect ... food additives and ingredients as well as for the ...
(Date:1/22/2015)... The laboratory information management systems market is a rapidly ... advancements due to factors such as rising pressure to ... systems, and increasing government support for adoption of HCIT ... in the market focus on technological advancements to further ...
Breaking Biology Technology:Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 2Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 3Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 4Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 2Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 3GEA Niro Soavi Announces the PandaPLUS 2000 Homogenizer for Processing New Applications for Nanoemulsions and Cell Disruption 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 4
... significant synergy opportunities by combining Mindray,s leading, China-based R&D and production ... ... in United ... States and Europe, SHENZHEN, China, March 11 ...
... CLEVELAND, March 11 ChanTest, the leading provider ... development customers,will feature the latest in its expanding ... of Toxicology conference March 17-20, in Seattle, Washington.,New ... Cardiac Channel,Panel(TM) and Brain Channel Panel(TM), which ChanTest ...
... Expands Pipeline, Provides Critical API,s and ... Access to Multiple non-US Companies, MERIDIAN, ... developer, manufacturer, and marketer of specialty,generic prescription drug products, announced ... Ltd. is complete and,that the new entity will operate as ...
Cached Biology Technology:Mindray to Acquire Datascope's Patient Monitoring Business for US$202 million 2Mindray to Acquire Datascope's Patient Monitoring Business for US$202 million 3Mindray to Acquire Datascope's Patient Monitoring Business for US$202 million 4Mindray to Acquire Datascope's Patient Monitoring Business for US$202 million 5Mindray to Acquire Datascope's Patient Monitoring Business for US$202 million 6ChanTest to Highlight Expanded Ion Channel Testing Services for Preclinical Safety at ToxExpo, Including the World's Largest Catalog of Validated Ion Channels, Booth 2504 2RxElite Filling Critical Requirement for Strategic Partners in Asia, Europe, and Australia 2
Ubiquitin Related I Sampler Kit 10 mu g each...
DNA Repair Sampler Kit 10g each...
PKC Sampler Kit 10 mu g each...
... reagent for Virus isolation ... unique water insoluble Elastomeric ... and chaotropes; Engineered to ... viruses while preserving infectivity; ...
Biology Products: