Previously thought non-transmissible bird flu strain infects humans for first time

November 14, 2013TAIWANA strain of bird flu that scientists thought could not infect people has shown up in a Taiwanese woman, a nasty surprise that shows scientists must do more to spot worrisome flu strains before they ignite a global outbreak, doctors say. On a more hopeful front, two pharmaceuticals separately reported encouraging results from human tests of a possible vaccine against a different type of bird flu that has been spreading in China since first being identified last spring, which is feared to have pandemic potential. The woman, 20, was hospitalized in May with a lung infection. After being treated with Tamiflu and antibiotics, she was released. One of her throat swabs was sent to the Taiwan Centers for Disease Control. Experts there identified it as the H6N1 bird flu, widely circulating in chickens on the island. The patient, who was not identified, worked in a deli and had no known connection to live birds. Investigators couldn’t figure out how she was infected. But they noted several of her close family and friends also developed flu-like symptoms after spending time with her, though none tested positive for H6N1. The research was published online Thursday in the journal Lancet Respiratory Medicine. Since the H5N1 bird flu strain first broke out in southern China in 1996, public health officials have been nervously monitoring its progress — it has so far killed more than 600 people, mostly in Asia. Several other bird flu strains, including H7N9, which was first identified in China in April, have also caused concern but none has so far mutated into a form able to spread easily among people. “The question again is what would it take for these viruses to evolve into a pandemic strain?” wrote Marion Koopmans, a virologist at the National Institute for Public Health and the Environment in the Netherlands, in a commentary accompanying the new report. She said it was worrying that scientists had no early warning signals that such new avian influenzas could be a problem until humans fell ill.
Scientists often monitor birds to see which viruses are killing them, in an attempt to guess which flu strains might be troublesome for humans — but neither H6N1 nor H7N9 make birds very sick. Koopmans called for increased surveillance of animal flu viruses and more research into predicting which viruses might cause a global crisis. “We can surely do better than to have human beings as sentinels,” she wrote. The vaccine news is on the H7N9 bird flu that has infected at least 137 people and killed at least 45 since last spring. Scientists from Novavax Inc., a Gaithersburg, Maryland, company, say tests on 284 people suggest that after two shots of the vaccine, most made antibodies at a level that usually confers protection. “They gave a third of the usual dose and yet had antibodies in over 80 percent,” said an expert not connected with the work, Dr. Greg Poland of the Mayo Clinic. “This is encouraging news. We’ve struggled to make vaccines quickly enough against novel viruses,” he said. Results were published online Wednesday by the New England Journal of Medicine. In a separate announcement on Thursday, Switzerland-based Novartis announced early tests on its H7N9 vaccine in 400 people showed 85 percent of them got a protective immune response after two doses. The data has not yet been published. The world needs to be prepared for “unpredictable pandemics” from viruses making the leap from animals to people, scientists in Taiwan also warned.  –ABC News BBC
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3 Responses to Previously thought non-transmissible bird flu strain infects humans for first time

  1. Well its been a while since we had a pandemic threat since Swine Flu, so not surprised this has raised its head at this time !!

    Thank you for all your updates great information you have been giving us :-)

    Like

  2. Luther DeHaven says:

    Alvin,

    I am reading your book,,,you indeed see the big picture. So let me clue you in on what is happening now, even if you won’t listen to me on earthquake prediction…

    (1) First off, watch this youtube on electric comets paying particular attention starting at 46:40 minutes into the video

    (2) Next read this comment on 11/14/13 spaceweather.com starting…

    COMET ISON OUTBURST: A sudden outburst of brightness from sundiving Comet ISON has catapulted it to the threshold of naked-eye visibility.

    (3) same day doubling in sunspot numbers from 11/13/13 SN 128 to 11/14/13 SN 228

    THERE IS A CLEAR ELECTROMAGNETIC CONNECTION BETWEEN THE COMET AND SUN

    (4) COMPARATIVE SIZES

    ISON is three miles wide…look up the meteor sizes involved in the Tunguska event and the Chelyabinsk meteor (3 miles is 4,800 meters)

    Like

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