A strain of bird flu that has sickened 132 people and killed 37 in China this year may have more potential to spread worldwide than the dreaded H5N1
avian influenza does.
Not exact matches
A new version of the H7N9
avian influenza virus might be able to cause widespread infection and should be closely monitored, scientists say, although it currently doesn't spread easily between people.
Two groups of scientists who carried out highly controversial studies with the
avian influenza virus H5N1 have reluctantly agreed to strike certain details from manuscripts describing their work after having been asked to
do so by a U.S. biosecurity council.
All subtypes (but not all strains of all subtypes) of
Influenza A virus are adapted to birds, which is why for many purposes
avian flu virus is the
Influenza A virus (note that the «A»
does not stand for «
avian»).
In additional experiments, the scientists found that participants who had significant antibody responses
did not necessarily also have significant immune system T cell responses to
avian viruses, indicating that these two arms of immunity can be independently boosted after vaccination or infection; that individuals who reported receiving seasonal
influenza vaccination had significantly higher antibodies to the
avian H4, H5, H6, and H8 subtypes; and that participants with exposure to poultry had significantly higher antibody responses to the H7 subtype, but to none of the other subtypes tested.
The potential public health implication of this observation is that a person infected by H7N9
avian influenza virus who
does not show symptoms could nevertheless spread the virus to others.
Three Emory scientists have signed a letter published last week in Nature and Science outlining proposed research on the H7N9
avian influenza virus. A strain of H7N9 transmitted from poultry to humans was responsible for 43 deaths in China earlier this year, but so far, evidence shows that the virus
does not transmit easily from human to human.
Wild birds worldwide carry
avian influenza viruses in their intestines, but usually
do not get sick from them.
In June 2015, during a regional outbreak of highly infectious
avian influenza, she helped prepare the state to deal with the outbreak so it
did not wreak the havoc it
did by killing tens of millions of birds in poultry producing states of Iowa and Minnesota.