Navigation Links
NIH-funded scientists describe genesis, evolution of H7N9 influenza virus
Date:8/21/2013

WHAT:

An international team of influenza researchers in China, the United Kingdom and the United States has used genetic sequencing to trace the source and evolution of the avian H7N9 influenza virus that emerged in humans in China earlier this year. The study, published today in Nature, was supported by the National Institute of Allergy and Infectious Diseases (NIAID), a component of the National Institutes of Health, and other organizations.

Working in three Chinese provinces, researchers led by Yi Guan, Ph.D., of the University of Hong Kong collected samples from the throats and digestive tracts of chickens, ducks, geese, pigeons and quail. Fecal and water samples from live poultry markets and the natural environment were also collected. From these samples, the researchers isolated several influenza viruses and genetically sequenced those of the H7N9 subtype as well as related H7N7 and H9N2 viruses. These sequences were compared with archived sequences of the same subtypes isolated in southern China between 2000 and 2013. The researchers compared the differences between the two sets of sequences to reconstruct how the H7N9 virus evolved through various species of birds and to determine the origin of genes.

According to their analysis, domestic ducks and chickens played distinct roles in the genesis of the H7N9 virus infecting humans today. Within ducks, and later within chickens, various strains of avian H7N9, H7N7 and H9N2 influenza exchanged genes with one another in different combinations. The resulting H7N9 virus began causing outbreaks among chickens in live poultry markets, from which many humans became infected. Given these results, the authors write, continued surveillance of influenza viruses in birds remains essential.


'/>"/>

Contact: Nalini Padmanabhan
nalini.padmanabhan@nih.gov
301-402-1663
NIH/National Institute of Allergy and Infectious Diseases
Source:Eurekalert

Page: 1

Related medicine news :

1. NIH-funded researchers begin trial of Shigella vaccine candidates
2. Better stroke care, everywhere: NIH-funded study boosts local hospitals clotbuster use
3. NIH-funded trial launched to assess experimental TB drug
4. NIH-funded analysis estimates effective PrEP dosing
5. NIH-funded study finds high HIV infection rates among gay and bisexual black men in the US
6. American Scientists Attempt to Sequence John Lennon's Genetic Code from the Beatle's Tooth
7. Harvard Scientists Commend Erchonia for Excellence in Clinical Research for the Zerona Laser
8. Is There a Science to Hiring? Demand for Scientists Grows 6%
9. UCLA and Chinese scientists analyze genetic makeup of human and mouse embryos in amazing detail
10. The Sergeant Sullivan Center Calls on Veterans, Advocates, Scientists, and Military Families to Provide Commentary on the VA Proposed Open Burn Pit Registry Questionnaire
11. Injecting iron supplement lets Stanford scientists track transplanted stem cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/27/2014)... Dr. Ronald Receveur, who has a leading Southern ... health tips before patients dig into the annual Thanksgiving feast. ... Albany affordable cosmetic dentistry, and his staff understand that ... While the staff wishes everyone a happy and safe holiday, ... can enjoy a feast that is also healthy on their ...
(Date:11/27/2014)... At The Little Gym, we know that being ... surprise when a recent study confirmed that regular physical ... Journal of Pediatrics found that “Promoting physical activity ... school years may be important not only for health, ... two groups of children; those that were engaging in ...
(Date:11/27/2014)... November 27, 2014 Ethane Web Technologies, an ... will provide a 10% Christmas discount on PPC service. The ... The discount offer will begin on 1 December 2014 and ... About this offer, a PPC professional working at Ethane Web ... for small businesses, as this big discount would make the ...
(Date:11/26/2014)... 2014 AlignLife, a chiropractic and ... kick-off of its annual Toy Drive. With the ... to donate to those in need throughout their ... to distribute the donations to those most in ... will be accepting donations at the clinics to ...
(Date:11/26/2014)... Sweetdressy.com, the well-known wedding dress manufacturer for the global ... dresses for ladies worldwide. Meanwhile, these graceful items are ... are very popular in the world and clients can ... , Sweetdressy.com believes that a company can attract ... and best services. The spirit of the company is ...
Breaking Medicine News(10 mins):Health News:New Albany Dental Practice Offers Oral Health Tips For Thanksgiving 2Health News:New Albany Dental Practice Offers Oral Health Tips For Thanksgiving 3Health News:New Albany Dental Practice Offers Oral Health Tips For Thanksgiving 4Health News:Ethane Web Technologies Announces 10% Christmas Discount on PPC Service 2Health News:Cheap Prom Dresses For Ladies Introduced At SweetDressy.com 2
... New Dynamics of Ageing Programme (NDA), a collaboration between ... and Humanities Research Council, the Biotechnology and Biological Sciences ... the Economic and Social Research Council and the Medical ... applications to be funded under the programme. , ...
... Oct. 18 ReBuilder,Medical Technologies, Inc. (Pink ... by world-renowned medical device inventor David B.,Phillips, ... service organization and facilitation. (Logo: ... when many companies are outsourcing customer service ...
... Cost of Prescription Drugs, WASHINGTON, Oct. 18 ... following statement in response to,today,s House Judiciary Committee ... independent pharmacists sweeping antitrust,exemptions:, "This bill couldn,t ... and,consumers alike. As most everyone is searching for ...
... UK awarding body associated with hairdressing and beauty therapy ... a major UK Centre for Burns Research based at ... of its kind by The Vocational Training Charitable Trust ... pioneering research programme soon to start in South Wales. ...
... Children Under 5 in Madagascar to Sleep Under Bed ... More and,Sumitomo Chemical have teamed up to contribute to ... Madagascar between October 22-29. Led by the Malagasy ... six months to five years old receives a bed ...
... The Bayer Foundation,announced today it has awarded ... of Chemical & Biomolecular Engineering (UH CHBE) to,establish ... which is competitive with other prestigious fellowships,from the ... over a,three-year period to a graduate student pursuing ...
Cached Medicine News:Health News:Research for a better old age 2Health News:Research for a better old age 3Health News:ReBuilder Medical Technologies, Inc. Hires Nurses Exclusively to Provide Customer Support 2Health News:ReBuilder Medical Technologies, Inc. Hires Nurses Exclusively to Provide Customer Support 3Health News:£1 million donation for burns research in Wales 2Health News:Malaria No More and Sumitomo Chemical Help Protect 1.4 Million Kids from Malaria 2Health News:Malaria No More and Sumitomo Chemical Help Protect 1.4 Million Kids from Malaria 3Health News:Bayer Foundation Grant Creates Graduate Engineering Fellowship at University of Houston 2Health News:Bayer Foundation Grant Creates Graduate Engineering Fellowship at University of Houston 3
(Date:11/26/2014)... Calif. , Nov. 26, 2014  Thoratec Corporation ... device-based mechanical circulatory support therapies to save, support and ... in two upcoming investor conferences. On Tuesday, ... th Annual Piper Jaffray Healthcare Conference.  D. ... provide an update on the company beginning at 11:30 ...
(Date:11/26/2014)... , Nov. 26, 2014  Genomic Health, Inc. ... Popovits , Chairman, Chief Executive Officer and President, will ... Healthcare Conference at The New York Palace Hotel in ... 3 at 11:30 am Eastern Time (ET). ... the conference call, go to the  Investor Relations  section ...
(Date:11/26/2014)... , November 26, 2014 Investor-Edge ... VVUS ), Horizon Pharma PLC (NASDAQ: ... and Johnson (NYSE: JNJ ), and Theravance Inc. ... companies can be accessed at: http://investor-edge.com/register . ... 4,758.25, up 0.07%, the Dow Jones Industrial Average edged 0.02% ...
Breaking Medicine Technology:Thoratec Announces Presentations At Investor Conferences For December 2014 2Genomic Health to Present at the 26th Annual Piper Jaffray Healthcare Conference 2Genomic Health to Present at the 26th Annual Piper Jaffray Healthcare Conference 3Pharma Stocks Highlight - VIVUS, Horizon Pharma, Endocyte, Johnson and Johnson, and Theravance 2Pharma Stocks Highlight - VIVUS, Horizon Pharma, Endocyte, Johnson and Johnson, and Theravance 3Pharma Stocks Highlight - VIVUS, Horizon Pharma, Endocyte, Johnson and Johnson, and Theravance 4Pharma Stocks Highlight - VIVUS, Horizon Pharma, Endocyte, Johnson and Johnson, and Theravance 5
... findings of the first cost-effectiveness analysis of Vimpat® ... partial-onset seizures.  The findings were presented at the ... (ISPOR) annual meeting in Baltimore, MD, USA.   ... to analyze standard anti-epileptic drug therapy with and ...
... Pa., May 31, 2011 CSL Behring ... Designations (ODD) by the European Commission for the development of ... (rVIIa-FP), a novel therapy to treat hemophilia A and hemophilia ... to exclusively market recombinant factor VIIa fused with albumin in ...
Cached Medicine Technology:New Analysis Shows Potential Cost Savings of Adding Antiepileptic Drug Vimpat® C-V 2New Analysis Shows Potential Cost Savings of Adding Antiepileptic Drug Vimpat® C-V 3New Analysis Shows Potential Cost Savings of Adding Antiepileptic Drug Vimpat® C-V 4New Analysis Shows Potential Cost Savings of Adding Antiepileptic Drug Vimpat® C-V 5New Analysis Shows Potential Cost Savings of Adding Antiepileptic Drug Vimpat® C-V 6New Analysis Shows Potential Cost Savings of Adding Antiepileptic Drug Vimpat® C-V 7New Analysis Shows Potential Cost Savings of Adding Antiepileptic Drug Vimpat® C-V 8CSL Behring Receives EU Orphan Drug Designations for rVIIa-FP for Hemophilia A and B Treatment 2CSL Behring Receives EU Orphan Drug Designations for rVIIa-FP for Hemophilia A and B Treatment 3CSL Behring Receives EU Orphan Drug Designations for rVIIa-FP for Hemophilia A and B Treatment 4
... Improved Access in Open Procedures ... ,The ENDOPATH ETS Compact-Flex45 No-Knife Articulating ... a 45mm staple line for open ... either a standard blue cartridge, a ...
... The ETS45 and ETS-FLEX45 ... 45mm staple and cut line. ... the device suitable for many ... cutters are intended for transection, ...
... Auto Suture ENDO CLIP 5 mm ... The applier is designed for introduction ... Auto Suture trocar sleeve, or larger ... The overall length of the shaft ...
Insert only, Pilling-Weck medium clip size...
Medicine Products: