Researchers believe that is concerning. For this reason, avian flu usually doesn’t transmit from person to person or infect people.
The CDC also reported that a sample from a teenager hospitalised with avian flu in British Columbia had one of the mutations.
Although the results indicate that the virus may change in ways that might increase its human transmissibility, researchers refrained from predicting that a pandemic is imminent.
“It’s a good thing that there is no evidence that this person has spread it to others,” said Dr. William Schaffner, an infectious diseases specialist.
At Vanderbilt University Medical Centre. “It is obvious that we must continue to focus on this and, if anything, intensify it further.”
There is no proof that the alterations were “functional,” which would suggest the virus could really adhere to the upper airway,