Go Back   This Blue Marble, a Global Current Events Discussion Forum > Health and Medicine > Flu Clinic

Flu Clinic A special wing of TBM's Health and Medicine forum set aside for discussing all issues related to influenza, pH1N1, H5N1 or seasonal. Please use the subrooms as appropriate.

Reply
 
Thread Tools Search this Thread Display Modes
Old 03-11-2015, 05:26 PM   #1
NowVoyager
Senior Level 6
 
NowVoyager's Avatar
 
Join Date: Oct 2009
Location: East of paradise and west of tomorrow
Posts: 9,247
Thanks: 23,242
Thanked 9,332 Times in 3,629 Posts
Default Mutating H7N9 Bird Flu .....

Please close and add to proper thread if one's already going. Thanks!


Mutating H7N9 bird flu may pose pandemic threat, scientists warn

A wave of H7N9 bird flu in China that has spread into people may have the potential to emerge as a pandemic strain in humans, scientists said on Wednesday.

The H7N9 virus, one of several strains of bird flu known to be able to infect humans, has persisted, diversified and spread in chickens across China, the researchers said, fuelling a resurgence of infections in people and posing a wider threat.

"The expansion of genetic diversity and geographical spread indicates that, unless effective control measures are in place, H7N9 could be expected to persist and spread beyond the region," they said in a study published in the journal Nature.

The H7N9 bird flu virus emerged in humans in March 2013 and has since then infected at least 571 people in China, Taipei, Hong Kong, Malaysia and Canada, killing 212 of them, according to February data from the World Health Organization (WHO).

After an initial flare up of human cases at the start of 2013, the H7N9 appeared to die down -- aided in large part by Chinese authorities deciding to close live poultry markets and issue health warnings about direct contact with chickens.

But infections in people increased again last year and in early 2015, prompting researchers to try to understand more about how the virus re-emerged, how it might develop, and how it might threaten public health.

In this study, an international team of scientists led by Yi Guan of Hong Kong university monitored the evolution and spread of H7N9 over 15 cities across five provinces in China.

By collecting and sequencing a large number of samples, they found that the H7N9 virus is mutating frequently, acquiring genetic changes that might increase its pandemic potential.

A large number of new genetic variants of the virus have become established in chickens and have spread across the country, probably because of poultry trade movement, they said.

Flu experts not directly involved in the research said its findings were interesting but did not necessarily show the H7N9 was changing in ways that made it more likely to develop into a pandemic flu strain.

"What we don't know from this paper is the significance of all these mutations that are accumulating as the virus persists and spreads," said Wendy Barclay, an expert in flu virology at Britain's Imperial College London. "This is especially relevant for human health -- does any of this change the pandemic potential of the virus?"

In its latest update on the flu strain, the Geneva-based WHO said it "continues to closely monitor the H7N9 situation" and conduct risk assessments.

"So far, the overall risk associated with the H7N9 virus has not changed," it said.

Yi Guan's team, however, said their analysis pointed to a need for heightened vigilance of H7N9 and for curbing direct human contact with live poultry at markets.

"Permanent closure of live poultry markets, central slaughtering and preventing inter-regional poultry transportation during disease outbreaks are needed to reduce the threat of H7N9 to public health," they wrote.


http://news.yahoo.com/mutating-h7n9-...183117237.html
__________________
The untold want, by life and land ne’er granted,
Now, Voyager, sail thou forth, to seek and find.

Walt Whitman
NowVoyager is offline   Reply With Quote
The Following User Says Thank You to NowVoyager For This Useful Post:
Exodia (03-12-2015)
Old 03-12-2015, 10:20 AM   #2
Auburn Boy
Denizen of the Gold Fields
 
Auburn Boy's Avatar
 
Join Date: Aug 2008
Posts: 8,436
Thanks: 2,339
Thanked 1,119 Times in 658 Posts
Circulating around the mainstream media..,

http://www.nbcnews.com/health/cold-f...ndemic-n321721

Quote:
H7N9 avian influenza has infected 622 people since 2013 and killed 227 of them.
Quote:
H5N1 was the first strain of bird flu to really worry experts, and it still is. It's infected 784 people in 16 countries since 2003, and killed 429 of them. It's also still circulating, mutating and swapping genes.
Is that fair competition?
__________________
(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help her gain world domination
Can't leave the Siwwy Wabbit behind!!
Auburn Boy is offline   Reply With Quote
Old 12-19-2016, 12:27 PM   #3
Potemkin
Omne ignotum pro magnifico
 
Potemkin's Avatar
 
Join Date: Aug 2008
Posts: 28,304
Blog Entries: 3
Thanks: 110
Thanked 6,147 Times in 3,007 Posts
New human H7N9 case reported in Guangdong
http://news.xinhuanet.com/english/20..._135894134.htm


Source: Xinhua** 2016-12-09 21:58:02


GUANGZHOU, Dec. 9 (Xinhua) -- A new case of H7N9 avian flu was reported in south China's Guangdong Province in November, Guangdong provincial health and family planning commission said on Friday.

The male patient, 81, was from the city of Meizhou. He has been cured and discharged from the hospital.

It is the 13th H7N9 case reported in Guangdong in 2016.

The number of infections this year decreased by 81.4 percent compared with the same period of 2015, according to the commission.

H7N9 is a bird flu strain first reported to have infected humans in March 2013 in China. It is most likely to strike in winter and spring.
__________________
“The price of freedom is the willingness to do sudden battle anywhere, any time and with utter recklessness.”
― Robert A. Heinlein, The Puppet Masters
Potemkin is offline   Reply With Quote
Reply

Tags
bird, flu, h7n9, mutating

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:12 AM.


Powered by vBulletin®
Copyright © Jelsoft Enterprises Ltd.