‘Worst-case bird flu scenarios’ being probed by top Covid scientists after girl, 11, dies
HEALTH officials have raised the pandemic risk of bird flu from three to four on a six-tier scale after the virus jumped from cows to humans.
"This is because the virus may adapt directly during transmission between mammals or may reassort with other flu viruses in humans or other mammals."Baby born with air rifle pellet 'lodged in tummy' after dad 'shot pregnant mum' To reach level five, the virus would have to cause 'human outbreaks ' meaning it spreads between humans.For level six. the UK would have to see 'sustained' transmission between humans.“UKHSA has established preparations in place for detections of human cases of avian flu and stands ready to initiate an appropriate public health response should it be needed.
This increase in transmission has given the virus lots of opportunities to mutate - a process where a pathogen changes and can become more dangerous.
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