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Tag: "avian" at biology news

Study investigates 'divorce' among Galapagos seabirds

...evoted husband and father is not enough to keep an avian marriage together for the Nazca booby, a long-lived seabird found in the Galapagos Islands off the coast of Ecuador. Many Nazca booby females switch mates after successfully raising a chick, according to a Wake Forest University study scheduled for ...

CU study reveals why starling females cheat

...r females in seeking extra-pair mates. "In most avian cooperative breeders, 40 to 60 percent of offspring are a result of extra-pair matings, but in superb starlings, only about 14 percent of the offspring are fathered by other males," said Rubenstein. No one knows why superb starling females have lower...

Experts predict Tamiflu could halve the pandemic influenza death toll versus no intervention

...ation for the use of Tamiflu for the prevention of avian flu in people who have been in contact with someone who is known, or suspected of being infected with the virus,” commented Professor Ira Longini, Professor of Biostatistics and Mathematics at the University of Washington, Seattle, USA. “This resear...

Treating HIV in war zones -- Public health emergencies need rapid advice from WHO

...n order to advise countries that were dealing with avian influenza A (H5N1) infection. Typically, the most rigorous clinical practice guidelines take two years or more to develop. The laborious process involves convening experts who search for and appraise all the relevant research literature, and who...

Avian influenza survivors' antibodies effective at neutralising H5N1 strain

...covered from the potentially deadly H5N1 strain of avian influenza may hold the key to future treatments fo...hers have shown how specific antibodies taken from avian flu survivors in Vietnam can be reproduced in the laboratory and prove effective at neutralising the...

Peramivir protects mice from lethal H5N1 infection

...ns significant protection during a pandemic of the avian influenza virus H5N1, according to results of mouse studies conducted by investigators at St. Jude Children's Research Hospital. Peramivir, an antiviral drug, blocks the ability of influenza viruses to use an enzyme called neuraminidase, thus prev...

US control strategies may make flu epidemics worse, UCLA study shows

...n outright flu pandemic, such as a human strain of avian flu. And officials say it is not a question of if such a health crisis will come but when. Are we prepared? In a word, say three UCLA researchers, no. In a report to be published in the peer-reviewed journal PLoS Computational Biology and currentl...

WHO data confirms low level of resistance to Tamiflu

...ance in influenza A viruses ( Resistance to H5N1 avian virus The possible development of anti-viral re...en three documented cases of Tamiflu resistance to avian influenza H5N1. 3,4 In one case, the prophylactic dose (75 mg daily) rather than the treatment dose ...

New host species for avian influenza identified

...rdam, and colleagues identify new host species for avian influenza A virus (H5N1) and provide important inf...000 wild migratory birds tested for low pathogenic avian influenza, details new data on host species, prevalence, and temporal and geographical variation of ...

Deconstructing brain wiring, one neuron at a time

...diately suggested the answer, which is based on an avian viral receptor that Young discovered as a postdoct...eurons of the type we select will then express the avian viral receptor and the rabies virus protein, allowing the modified rabies virus to infect targeted c...

NIAID expands capability for influenza research and surveillance

...r the 1997 Hong Kong outbreak of highly pathogenic avian influenza in humans. Under this program, researche...ir work will include determining the prevalence of avian influenza in animals that routinely come into close contact with people; understanding how flu virus...

UCI scientists reconstruct migration of avian flu virus

...e combined genetic and geographic data of the H5N1 avian flu virus to reconstruct its history over the past decade. They found that multiple strains of the virus originated in the Chinese province of Guangdong, and they identified many of the migration routes through which the strains spread regionally and...

Changes in amino acids in the 1918 influenza virus cut transmission

...t is recognized by hemaglutinins of both human and avian strains of influenza virus. These molecules are k...is through an alpha-2,3 bond. Hemagglutinins from avian influenza virus prefer binding to alpha 2-3 sialic acids, while hemagglutinins from human influenza ...

New details on how the immune system recognizes influenza

...topes among different virus strains, including the avian H5N1 virus, only one has been published that appea...en strains, which could increase the ability of an avian virus to be transmissible to humans. In addition, only a handful of the epitopes are known to be ...

LIAI completes world's most comprehensive analysis on influenza virus data

...demic influenza strains, including the deadly H5N1 avian flu. "This study shows what is currently known ...alth concerns over the possible spread of the H5N1 avian flu. "The database marks the first time that all known antibody and T cell epitope information has...

NIAID DNA vaccine for H5N1 avian influenza enters human trial

...an trial of a DNA vaccine designed to prevent H5N1 avian influenza infection began on December 21, 2006, wh... public health preparedness." Highly pathogenic avian influenza A viruses, specifically H5N1, have emerged in the past decade, causing widespread sickness...

New research shows that flu is a trigger of heart attacks

...umber of new vaccines were being developed against avian flu virus (the most likely cause of the next flu pandemic), "In addition, we are rapidly stockpiling antiviral drugs (such as Tamiflu), so I think we are likely to have the means of preventing or combating the virus, if nature doesn’t take us by surp...

Map predicting spread of avian flu

... end by massive culling of susceptible farms. For avian influenza, the analyses show that there are two poultry-dense areas in The Netherlands where epidemic spread is possible, one in the central region and one in the south, close to the German and Belgian border (see attached figure). The authors sugges...

QUT scientists on the way to sifting out a cure for HIV

...e Severe Acute Respiratory Syndrome (SARS) and the avian flu virus, both of which are currently a major concern to the international community." He said because the membrane was designed to permit a large flux or flow, it could also be used for water treatment, as well as within the pharmaceutical and f...

Study uncovers a lethal secret of 1918 influenza virus

...characteristic of the deadly complications of H5N1 avian influenza, the strain of bird flu present in Asia and which has claimed nearly 150 human lives but has not yet shown a capacity to spread easily among people. "What we see with the 1918 virus in infected monkeys is also what we see with H5N1 virus...

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