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wow.... avian flu has a 62% mortality rate and can spread indirectly.

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ORDagnabbit Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jan-17-08 01:28 PM
Original message
wow.... avian flu has a 62% mortality rate and can spread indirectly.
http://news.yahoo.com/s/nm/20080117/hl_nm/birdflu_origin_dc

WASHINGTON (Reuters) - The H5N1 bird flu virus may sometimes stick to surfaces or get kicked up in fertilizer dust to infect people, according to a World Health Organization report published on Wednesday.

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The WHO team reviewed all known human cases of avian influenza, which has infected 350 people in 14 countries and killed 217 of them since 2003, and found that 25 percent of cases have no explanation
.
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walnutpie Donating Member (117 posts) Send PM | Profile | Ignore Thu Jan-17-08 01:29 PM
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1. Kind of puts things in perspective...
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Avalux Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jan-17-08 01:38 PM
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2. To be clear - the data is based on avian influenza A cases in humans.
Edited on Thu Jan-17-08 01:41 PM by sparosnare
The documented cases of humans contracting avian influenza A show transmission via contact with infected birds or infected person where very close contact has occurred. Apparently the unexplained cases are attributed to the virus being able to live without its vector for an extended period.

The virus that would cause a pandemic avian flu outbreak among humans has not 'been born' yet.
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pinto Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jan-17-08 02:38 PM
Response to Reply #2
9. Thanks for the perspective, sparosnare.
:thumbsup:
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mike_c Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jan-17-08 01:40 PM
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3. luckily, it seems not to have recombined with more human virulent...
...influenza strains, or at least not yet.
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Mojorabbit Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jan-17-08 01:58 PM
Response to Original message
4. There is a large outbreak in birds
in India this week and it is a disaster. People are refusing to turn their poultry in, are smuggling it out of the area or selling birds that have died from the flu cheap on the market. It has spread in just 24 hours to more areas in the region. They have no infrastructure to cull the poultry in the area. A big mess.
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NNN0LHI Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jan-17-08 02:15 PM
Response to Original message
5. Don't play with sick or dead poultry and everything will be alright
Edited on Thu Jan-17-08 02:39 PM by NNN0LHI
Otherwise your have a higher chance of dying from getting bonked in the head by a coconut than dying from bird flu.

Don


http://www.fumento.com/disease/flu2005.html

<snip>Let's break the pandemic issue down to its simpler parts, namely: How likely is avian flu to become readily communicable between humans? How contagious would it be? What interventions could be taken if it did become pandemic? How deadly would it be?

But first, How exactly does "avian" flu differ from "normal" flu? Every year several strains of flu circulate around the globe, usually reaching U.S. shores in late October and infecting 5 to 20 percent of the population. Flu leads to the death of about 36,000 Americans in an average year. To reduce the level of illness and death, we vaccinate. Unfortunately, flu mutates rapidly, so the antigens on the virus's protein coat change each year. This is known as "antigenic shift" and explains why we need to get new vaccines every fall – the protective antibodies we received from last year's vaccination were designed for last year's antigens. Health authorities tell us the white lie that there is no carry-over immunity from being vaccinated or infected the previous year; but actually there is some.

Nevertheless, if there were a radical "antigenic shift," the annual vaccine would be worthless. We would then suffer another pandemic such as the Asian flu of 1957-58 that caused about 70,000 U.S. deaths and a million globally, the Hong Kong flu of 1968-69 that caused 34,000 U.S. deaths and 1-4 million globally, and the big daddy of all modern pandemics, the Spanish flu of 1918-19, that killed more than half a million Americans and about 25-50 million worldwide. (It should be noted that some experts, such as Dr. Edwin Kilbourne, emeritus professor of immunology at New York Medical College, believe avian flu is closely enough related to flus to which we've already been exposed that we would have some natural protection.)

Lots of animals get influenza, and it often jumps from species to species. Sometimes we give it to them, and other times they give it to us. That's the worry with avian flus. They were first recognized in Italy over a century ago, but the current epidemic of H5N1 among birds wasn't discovered until 1997 in Hong Kong, when it began killing chickens and then spread to humans, six of whom died. (This prompted the first panic.)

Poultry vaccines are available, and international bodies encourage their use, but compliance has varied tremendously. Vietnam appears to be making a heroic effort to inoculate all of its poultry, and other countries might follow suit, but vaccinations cost money, and the U.N. claims the West isn't forking over big enough premiums for an avian flu insurance policy. Once a flock is infected, nothing can be done but to slaughter every bird. In the meantime, migratory birds can carry it to another part of the country, or even to other continents, as we've recently seen.

As of November 9, 2005, 125 cases and 64 deaths have been reported from avian flu since late 2003, all in Indonesia, Thailand, Vietnam, and Cambodia. There have been a few cases of possible transmission from one family member to another, but that would have involved massive exposure and it could also be that the second family member got the disease directly from fowl. Nobody is saying that H5N1 is yet a threat to anybody other than bird farmers. But could it become one? snip

It's practically a state secret that the discovery of H5N1 in poultry dates back not to 1997 but rather to 1959, when it was identified in Scottish chickens. Perhaps haggis had a protective effect on the farmers, but there was a terrible outbreak of the related H5N2 among both chickens and turkeys in Pennsylvania in 1983-85 (17 million birds were destroyed) that appears to have originated as H5N1 in seagulls. So H5N1 has been flying around the globe for over four decades and hasn't done a number on us yet. That doesn't mean it won't ever; but there's absolutely no reason to think it will pick this year or next.

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ORDagnabbit Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jan-17-08 02:27 PM
Response to Reply #5
6. thats not true... read the first paragraph again
WASHINGTON (Reuters) - The H5N1 bird flu virus may sometimes stick to surfaces or get kicked up in fertilizer dust to infect people, according to a World Health Organization report published on Wednesday.
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NNN0LHI Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jan-17-08 02:38 PM
Response to Reply #6
8. Yes if one has H5N1 infected birds pooping on their surfaces you might catch it
I don't have any.

Don
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Mojorabbit Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jan-17-08 10:44 PM
Response to Reply #5
10. It has mutated into I think 10 clades
with several subclades. Almost a quarter of the people infected had no contact with poultry. It is not the same virus as 1959. There are over 300 cases. Your article is old. I follow emerging infectious diseases as a hobby and have been watching this closely for the past few years.

recent articles:
http://www.cidrap.umn.edu//cidrap/content/influenza/avianflu/news/jan1608h5n1.html
http://content.nejm.org/cgi/content/full/358/3/261

and this from the hindustan times yesterday
Even water can carry bird flu
The dreaded H5N1 bird flu virus - whose outbreak has been confirmed in West Bengal - is more infectious than previously thought, according to World Health Organisation experts.
The virus can travel by sticking to surfaces, get kicked up in dust and feed to infect people and contaminate ponds and lakes, the experts said in a report published in The New England Journal of Medicine. This is a cause of worry for India, as ponds and catchments are sources of water in several villages.

In India, the WHO sounded another alert, saying the Bengal outbreak was more serious than the previous outbreaks in Maharashtra and Manipur. "More serious risk factors are associated with this current outbreak than previously encountered, including that the affected areas are more widespread and because of proximity to extended border areas," said a WHO expert in India.

For the journal, the WHO team reviewed all known human cases of bird flu, which has infected 350 people in 14 countries and killed 217 since 2003. It found that 25 per cent of cases had no explanation. Most are passed directly from bird to people, and rarely one person can infect another - always via intimate physical contact.

"For some patients, the only identified risk factor was visiting a live-poultry market. In one quarter or more of patients with influenza A (H5N1) virus infection, the source of exposure is unclear, and environment-to-human transmission remains possible," wrote study leader Dr Frederick Hayden.

"Eating well-cooked chicken cannot infect people, but ingestion of virus-contaminated products or swimming or bathing in virus-contaminated water might pose a risk," he wrote. (Snip) "After exposure to infected poultry, the incubation period generally appears to be 7 days or less, and in many cases this period is 2 to 5 days",

http://www.hindustantimes.com/StoryPage/StoryPage.aspx?id=3135966b-6c82-4d9c-8fd2-774bc7ed2b6c&ParentID=63ad2252-91a1-4abc-82d2-c4330fb4a062&MatchID1=4627&TeamID1=1&TeamID2=6&MatchType1=1&SeriesID1=1165&PrimaryID=4627&Headline=Even+water+can+carry+bird+flu
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ayeshahaqqiqa Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jan-17-08 02:33 PM
Response to Original message
7. We had a seminar about the avian flu in Nov. 2005
Our County Judge came and gave a talk at Future Visions Foundation, a non-profit health education foundation with which I am affiliated. He outlined the plans the county had for a flu breakout, and it included rationing of health care and what would be done with the dead. Then our docs reminded everyone, wisely, to do these common-sense things:

1. If you are sick, stay home.
2. If you sneeze, use a tissue or sneeze into your elbow, not your hands-harder to spread germs
3. Have hand sanitizer handy, and use it not only on your hands, but things frequently touched, like door knobs and light switches.
4. Build up your immune system through healthy eating and use of supplements


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