Certain mammals have contracted the sickness after beforehand regarded as immune.
The World Health Organisation is elevating considerations concerning the “terribly excessive” mortality fee hen flu can have in people.
The unfold of H5N1 hen flu has now been recorded in mammals resembling cows and goats – which had been regarded as proof against the influenza.
According to WHO, 463 human deaths have been attributable to hen flu since 2003, placing the case fatality fee at 52%.
Mullingar’s Kingston Mills, Professor of Experimental Immunology at Trinity College Dublin, says the dangers of hen flu are very actual: