One mutation could make H5N1 a greater threat, researchers say
While there has been no sign of person-to-person spread of bird flu, researchers said on Thursday that a single mutation in the H5N1 avian influenza virus could enhance the virus’ ability to attach to human cells. That could potentially increase the possibility of transmission among humans, said the study, led by a team of scientists at the Scripps Research Institute.
California child with no known contact with infected animals tests positive for bird flu
A child in populous Alameda County tested positive for the avian influenza virus and was recovering at home from mild upper respiratory symptoms, said California public health officials on Tuesday. The child had no known contact with an infected animal and would be the second such case in the United States this year.
U.S. aims to vaccinate livestock workers against seasonal flu
The government will spend $5 million to vaccinate livestock workers against the seasonal flu to prevent a potentially dangerous mingling of the seasonal and H5N1 avian flu viruses this fall, said the Centers for Disease Control on Tuesday. Nirav Shah, CDC principal deputy director, said there was "active discussion" of going a step farther, to give the H5N1 vaccine to workers culling flocks infected with bird flu, but that it was not warranted at present.