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Tag: "influenza" at biology news

Air travel and pandemic flu

...air travel from countries where there is a serious influenza outbreak will do little to hold back the spread of the infection, according to the findings of a study conducted at the UK Health Protection Agency and published in the journal PLoS Medicine. Sometimes a new type of influeza virus appears that caus...

Epstein-Barr virus might kick-start multiple sclerosis

...d Edwards. "We also examined T-cell responses to influenza hemagglutinin, antigens derived from cytomegalovirus, and even EBV antigens other than EBNA1," Edwards said. "The T-cell responses to these were all normal in MS patients, indicating a distinct role for EBNA1 in the disorder." The team then wanted t...

St. Jude test of bird flu vaccine proves successful

...ted mice and ferrets against a highly lethal avian influenza virus, according to the investigator who led the s...dies that showed protection against multiple human influenza strains, suggests that such a vaccine would protect humans against multiple variants of the bird and...

Control measures fail to stop spread of new H5N1 virus

...t H5N1 is the most likely virus to trigger a human influenza pandemic (worldwide epidemic). Moreover, the increasing number of transmissions from birds to humans in the past year supports this opinion, said Robert G. Webster, Ph.D., a co-author of the PNAS paper. Webster is a member of the Infectious Diseases ...

Mouse study reveals new clues about virulence of 1918 influenza virus

...nalysis of an animal's immune response to the 1918 influenza virus provides new insights into the killer flu, r...ut the virus that caused the devastating 1918-1919 influenza pandemic is an urgent imperative as we pursue efforts to prepare for--and possibly thwart--the next ...

Experimental vaccine protects lab animals against several strains of H5N1

... to stockpile vaccines against H5N1, the strain of influenza virus that experts fear could cause the next flu p...emphis, Tenn., used reverse genetics to develop an influenza virus with two key proteins on its surface derived from an H5N1 strain. They inactivated the virus a...

New bird flu drug promises to beat the problem of resistance

... they have discovered into a new kind of antiviral influenza drug. The search for an alternative flu drug has... the full extent of resistance ?the ability of the influenza virus to withstand drug treatments - becomes more widely understood. Both Tamiflu and Relenza, the...

Scientists to employ Arctic ice and polar bears to protect diversity of world's crops

...ars ago against one antigenic variant of the avian influenza virus H5N1 may protect humans against future varia...are known to be an excellent and accurate model of influenza infection and immune response in humans," said Elena Govorkova, Ph.D., a staff scientist in the Depa...

H5N1 vaccine could be basis for life-saving stockpile

...ars ago against one antigenic variant of the avian influenza virus H5N1 may protect humans against future varia...are known to be an excellent and accurate model of influenza infection and immune response in humans," said Elena Govorkova, Ph.D., a staff scientist in the Depa...

High-dose flu vaccines appear to safely boost immunity in elderly

High-dose influenza vaccines may increase elderly patients' immune res...rchives journals. Vaccines containing inactivated influenza virus have been available for 50 years to prevent flu and its complications, according to background...

Scientists aim to thwart use of flu as bioweapon

... talk on the roles of specific types of T-cells in influenza will be at 1:30 p.m. Friday, June 23, at the Rochester Marriott Airport Hotel on West Ridge Road. The lecture is free and open to the public. During the symposium Thursday and Friday, University of Rochester experts in mathematics, statistics, immun...

UGA study explains peaks and troughs of dengue epidemics

...n type of framework," Rohani said. "Now with avian influenza being very much on everyone's mind, we're beginning to realize that the genetic diversity of infectious agents is really important." ...

Avian flu modeled on supercomputer, explores vaccine and isolation options for thwarting a pandemic

...tions about the possible future course of an avian influenza pandemic, given today's environment of worldwide c...model examines the nationwide spread of a pandemic influenza virus strain, such as an evolved avian H5N1 virus, should it become transmissible human-to-human. Th...

Scientists identify molecular structure of key viral protein

...ins associated with enveloped viruses such as HIV, influenza virus and the paramyxoviruses -- have two dramatic...s huge numbers of deaths worldwide. And while HIV, influenza and SARS are not in the same family, the viruses do share a mechanism similar to that used by paramy...

Avian flu transmission to humans may be higher than thought

...ith confirmed outbreaks of highly pathogenic avian influenza (HPAI) in poultry, subtype H5N1. The researchers included 45,478 randomly selected people in the district to answer screening questions about exposure to poultry and flu-like illnesses (defined as a combination of cough and fever). The study was pe...

How can we protect patients with weakened immune systems from influenza?

...isease. In addition to the yearly toll of ordinary influenza (as many as 36,000 annual fatalities in the U.S.),...es on the basic question of who benefits most from influenza vaccine," said Dr. Sullivan. "This question becomes paramount if influenza reaches epidemic proporti...

Avian influenza virus in mammals spreads beyond the site of infection to other organ systems

... Center have demonstrated systemic spread of avian influenza virus in cats infected by respiratory, digestive, ...ology and is accompanied by a commentary. Avian influenza (H5N1) is of great concern because of the current outbreaks in Asia and the potential for pandemic s...

Minor mutations in avian flu virus increase chances of human infection

The H5N1 avian influenza virus, commonly known as "bird flu," is a highly c...the journal Science. Receptor specificity for the influenza virus is controlled by the glycoprotein hemagglutinin (HA) on the virus surface. These viral HAs bin...

Study outlines genetic differences between potential pandemic influenza strains

An analysis of H5N1 influenza samples in Southeast Asia shows not only how the t...5N1 candidates with the potential to cause a human influenza pandemic is getting more genetically diverse, which makes studying the virus more complex and height...

New influenza vaccine takes weeks to mass produce

...cing effective vaccines against potential pandemic influenza strains in weeks instead of the months required fo...sible for the production of hemagglutinin from the influenza virus and inserting them into a baculovirus. Specific host cells are then infected with the baculovi...

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