Navigation Links
Swine Flu Burrows Into Lungs: Study
Date:9/10/2009

Unlike seasonal flu, H1N1 goes deep into respiratory tract, researchers confirm

THURSDAY, Sept. 10 (HealthDay News) -- New British research confirms previous reports that the H1N1 swine flu goes deeper into the lungs than ordinary seasonal flu, possibly explaining why it's often more severe in some people.

"Most people infected with swine-origin flu in the current pandemic have experienced relatively mild symptoms," Ten Feizi, a professor at Imperial College London and co-author of a study released Thursday, said in a college news release. "However, some people have had more severe lung infections, which can be worse than those caused by seasonal flu. Our new research shows how the virus does this -- by attaching to receptors mostly found on cells deep in the lungs. This is something seasonal flu cannot do."

The finding echoes that of another study, published earlier this month in PLoS Currents. That work, from University of Maryland researchers, found that H1N1 reached deeper into the lungs of ferrets when compared to seasonal flu strains.

According to the researchers behind the new study, flu viruses infect the body by attaching themselves to receptors on the outside of cells. This allows the viruses to hijack the cells and infect even more cells, a cycle that can lead to illness and death.

The new study, published Sept. 10 in the journal Nature Biotechnology, finds that swine flu attacks cells deep in the lungs, whereas seasonal flu targets cells in the nose, throat and upper airway.

The researchers suspect this may explain why swine flu can be so much more serious than seasonal flu: It may simply be able to attack more cells.

The study also found that the swine flu virus binds more weakly when it goes after cells deeper in the lungs versus cells higher up in the respiratory system. However, "if the flu virus mutates in the future, it may attach to the receptors deep inside the lungs more strongly, and this could mean that more people would experience serious symptoms. We think scientists should be on the lookout for these kinds of changes in the virus so we can try to find ways of minimizing the impact of such changes," Feizi said.

More information

Learn more about the swine flu from the U.S. Centers for Disease Control and Prevention.



-- Randy Dotinga



SOURCE: Imperial College London, news release, Sept. 10, 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Swine Flu Shots May Come Too Late to Stem Fall Outbreak: Study
2. With All Eyes On Swine Flu, Thousands of Parents Ask President Obama How Much Longer Until Autism Gets Similar Attention
3. Chinese Devil Dung Plant Could Be a Swine Flu Fighter
4. Colleges Move to Limit Swine Flus Spread
5. Offits Failure to Disclose Jeopardizes Swine Flu Vaccine Program
6. Americas Registered Nurses Applaud New Institute of Medicine H1N1/Swine Flu Safety Recommendations -- and Call on CDC to Maintain Stringent Safety Guidelines
7. U.S. Issues Swine Flu Guidelines for Day-Care Programs
8. Swine Flu Vaccine Seems Safe: Experts
9. Giving Swine Flu Drug by IV Could Save Lives
10. Swine Flu Poses Risk to Kids With Neurological Conditions
11. How to Protect Against the Swine Flu Virus: My Personal Experience with Gene-Eden(TM), a Broad Range Antiviral Supplement
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Swine Flu Burrows Into Lungs: Study
(Date:10/13/2017)... , ... October 13, 2017 ... ... of Pharmacy (SOP) alumni Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ... on guideline updates for the primary prevention of cardiovascular diseases during the ...
(Date:10/13/2017)... ... October 13, 2017 , ... Apple Rehab Shelton Lakes , ... mock evacuation of the facility as part of a disaster drill on October 3rd. ... EMS and Shelton City Emergency Manager, as well as the Connecticut Long Term ...
(Date:10/13/2017)... ... 13, 2017 , ... The Visiting Nurse Association (VNA) of Somerset Hills is ... vendors and unique items from across the nation, this holiday-themed event will raise funds ... by the VNA. The boutique will be open Saturday, November 4 (10:00 a.m. ...
(Date:10/13/2017)... ... 13, 2017 , ... Global Healthcare Management’s 4th Annual Kids Fun Run brought ... This free event, sponsored by Global Healthcare Management’s CEO, Jon Letko, is aimed at ... towards children of all ages; it is a non-competitive, non-timed event, which is all ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... viewers the lowdown on sciatica in a new episode of "Success Files," which ... current events and innovation and investigates each subject in-depth with passion and integrity. ...
Breaking Medicine News(10 mins):
(Date:9/28/2017)... Sept. 28, 2017 Cohen Veterans Bioscience and ... use of wearable and home sensors for real-time monitoring ... Signal Foundation, a nonprofit organization focused on disruptive health ... an affordable analytical system to record and integrate behavioral, ... ...
(Date:9/25/2017)... , Sept. 25, 2017   Montrium ... Master File solutions, today—from the IQPC Trial Master ... , NL)—announced that EastHORN Clinical Services has ... clinical programs and TMF management. EastHORN, a leading ... eTMF platform to increase transparency to enable greater ...
(Date:9/22/2017)... Sept. 22, 2017  As the latest Obamacare repeal ... Bill Cassidy (R-LA) and Lindsey Graham ... the medical device industry is in an odd place. ... the 2.3% excise tax on medical device sales passed ... want covered patients, increased visits and hospital customers with ...
Breaking Medicine Technology: