Navigation Links
Key Viral Change Could Help Bird Flu Spread
Date:10/4/2007

An altered protein would let it thrive in upper airway, scientists say

THURSDAY, Oct. 4 (HealthDay News) -- U.S. scientists say they've spotted a crucial step the deadly H5N1 bird flu virus must take in order to spread easily in humans.

Since H5N1 first appeared in 1997, there have been more than 250 human infections. Of those, 150 were fatal. Most of the human infections were the result of close contact with infected birds. So far, the virus has not developed the ability to spread easily among humans.

Now, researchers led by University of Wisconsin-Madison virologist Yoshihiro Kawaoka have pinpointed a single change in a viral protein that helps H5N1 infect the cells of the upper respiratory system in mammals. The adaptation could enable the virus to infect a wider range of cell types and spread more easily among humans, the scientists said.

Being able to establish itself in the upper respiratory system enables easy transmission of the virus through coughing and sneezing, Kawaoka noted. However, other yet-to-be identified changes would have to occur before the H5N1 virus could potentially trigger a flu pandemic.

The finding appears in the journal PLoS Pathogens.

"The viruses that are in circulation now are much more mammalian-like than the ones circulating in 1997," Kawoka said in a prepared statement. "The viruses that are circulating in Africa and Europe are the ones closest to becoming a human virus."

More information

The U.S. Centers for Disease Control and Prevention has more about bird flu.



-- Robert Preidt



SOURCE: University of Wisconsin-Madison, news release, Oct. 4, 2007


'/>"/>
Copyright©2007 ScoutNews,LLC.
All rights reserved

Page: 1

Related medicine news :

1. Roche Commits More Antiviral Pills To Asia For Bird Flu
2. FDA panel refuses anti-viral cold remedy
3. New oral antiviral treatment of cold sores approved
4. Viral encephalitis can cause more damage than already known
5. Gene-Nanoparticle Gene Transfer Is Better Than Viral Vector Transfer System
6. Therapeutic Genes Transferred By Viral Vector Through T Cell Masking
7. Increased demand for Bird flu anti-viral drug world wide
8. Mysterious viral outbreak in Toronto, influenza ruled out
9. HIV Mortality declining in India due to Generic Antiretroviral therapy drugs
10. Catechins in green tea show antiviral effect on influenza virus
11. CMSI produces Low cost Anti-retroviral drugs in India
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... Brooklyn, NY (PRWEB) , ... June 27, 2016 ... ... is using cutting edge technology to revolutionize the emergency ambulance transport experience for ... Many are aware of how Uber has disrupted the taxi industry through the ...
(Date:6/26/2016)... ... 26, 2016 , ... On June 10-11, 2016, A Forever Recovery, a holistic ... World’s Longest Breakfast Table in Battle Creek, MI, where the rehabilitation facility is located. ... some of the world’s leading providers of cereal and other breakfast foods. Its residents ...
(Date:6/26/2016)... ... ... blind and certified personal trainer is helping to develop a weight loss fitness plan that ... the two major problems leading the fitness industry today:, , All ... They don’t eliminate all the reasons people quit their exercise program , ...
(Date:6/25/2016)... ... June 25, 2016 , ... Austin residents seeking Mohs surgery ... of Mohs Surgery and to Dr. Russell Peckham for medical and surgical dermatology. , ... for skin cancer. The selective fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey ...
(Date:6/25/2016)... TX (PRWEB) , ... June 25, 2016 , ... ... the United States, named Dr. Sesan Ogunleye, as the Medical Director of its new ... the facility Medical Director of our new Mesquite location,” said Dr. James M. Muzzarelli, ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 2016 Research and Markets has announced ... Analysis 2016 - Forecast to 2022" report to their ... contains up to date financial data derived from varied research ... trends with potential impact on the market during the next ... which comprises of sub markets, regional and country level analysis. ...
(Date:6/23/2016)... , June 23, 2016 Research ... Pharma News Issue 52" report to their offering. ... in influenza treatment creates a favourable commercial environment for MedImmune ... growing patient base that will serve to drive considerable growth ... vaccine would serve to cap sales considerably, but development is ...
(Date:6/23/2016)... , June 23, 2016 , ... Thursday, July 7, 2016 , , , , LOCATION: , ... , , , , EXPERT PANELISTS:  , , , Frost ... Industry Analyst, Christi Bird; Senior Industry Analyst, Divyaa Ravishankar and Unmesh ... The global pharmaceutical industry is witnessing an exceptional era. Several ...
Breaking Medicine Technology: