Navigation Links
Study provides new understanding of forces behind seasonal flu virus evolution
Date:4/16/2008

WHAT: Do influenza viruses persist in low levels year-round in the northern and southern hemispheres, or does a new crop of the virus emerge afresh in tropical zones such as Southeast Asia before spreading into temperate regions around the globe" Researchers have provided an answer to this long-standing question: new strains arise each year.

The new findings should help public health officials more quickly and accurately determine which strains to include in the annual flu vaccine.

The study, supported in part by the National Institutes of Health (NIH), appears online in advance of print in the journal Nature.

The researchers analyzed full gene sequences of seasonal influenza virus samples collected from the worlds temperate regions north and south of the equator. Their data comprised full genetic sequences of 1,302 isolates of influenza A virus collected over 12 years from New Zealand and New York state.

By quantifying the degree of genetic diversity among the strains subtypes, gene segments and geographic locations, the researchers were able to detect patterns indicating that virus strains do not persist from one flu season to the next in the temperate regions. Therefore, the researchers deduced, new flu strains emerge annually from the tropics.


'/>"/>

Contact: Anne A. Oplinger
niaidnews@niaid.nih.gov
301-402-1663
NIH/National Institute of Allergy and Infectious Diseases
Source:Eurekalert

Page: 1

Related medicine news :

1. Seasonal Flu Outbreaks Start in Asia: Study
2. Study examines the effect of epilepsy on the aging
3. Study shows pine bark naturally reduces osteoarthritis
4. Study Shows Pine Bark Naturally Reduces Osteoarthritis
5. Study suggests too much screen time and not enough physical activity may lead to childhood obesity
6. St. Jude gene study reveals basis of anticancer drug resistance in childhood leukemia
7. UAB study shows investigational drug may treat biliary cancers
8. Study shows that high-dose, high-frequency interferon produces no additional benefit
9. Study finds media coverage of breast cancer focuses too little on prevention
10. USC study finds evidence of gender-related differences in development of colon cancer
11. New study in JCSM finds that obesity can predict upper airway obstruction amongst children
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... 27, 2016 , ... TherapySites, the leading website ... Tennessee Counseling Association. This new relationship allows TherapySites to continue to ... adding exclusive benefits and promotional offers. , "TCA is extremely excited about this ...
(Date:6/27/2016)... ... June 27, 2016 , ... A revolution is underway. ... transport experience for the millions of people who require these medical transport services ... industry through the use of technology. Now, SmartEMS has put forth an industry-changing ...
(Date:6/26/2016)... ... 27, 2016 , ... Quality metrics are proliferating in cancer care, and are ... the eye of the beholder, according to experts who offered insights and commentary in ... Managed Care. For the full issue, click here . , For the American ...
(Date:6/26/2016)... , ... June 26, 2016 , ... Pixel Film Studios ... X. , "Film editors can give their videos a whole new perspective by using ... - CEO of Pixel Film Studios. , ProSlice Levels contains over 30 Different ...
(Date:6/26/2016)... ... ... a legally blind and certified personal trainer is helping to develop a weight loss fitness ... to fix the two major problems leading the fitness industry today:, , ... They don’t eliminate all the reasons people quit their exercise program ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... -- Research and Markets has announced the ... (Organic Chemical (Sugar, Petrochemical, Glycerin), Inorganic Chemical), Functionality (Filler, ... Global Forecast to 2021" report to their offering. ... pharmaceutical excipients market is projected to reach USD 8.1 ... the forecast period 2016 to 2021. ...
(Date:6/23/2016)... LOS ANGELES , June 23, 2016 /PRNewswire/ ... (NASDAQ: CAPR ), a biotechnology company ... first-in-class therapeutics, today announced that patient enrollment in ... progrEssion in Duchenne) has exceeded 50% of its ... its enrollment in the third quarter of 2016, ...
(Date:6/23/2016)... INDIANAPOLIS , June 23, 2016 If ... Leaders Scholarship is any indication, the future is in ... at www.diabetesscholars.org by the Diabetes Scholars Foundation ... the way of academic and community service excellence. ... since 2012, and continues to advocate for people with ...
Breaking Medicine Technology: