the public health agency -lrb- pha -rrb- confirmed the person had recently travelled in an area affected by the disease .
they are being assessed in accordance with the ` national risk assessment protocol ' at the royal victoria hospital , belfast , the pha added .
lisa mcmurray died at the royal victoria hospital , belfast , in 2009 after contracting rabies while working in south africa .
attacks the brain and nervous system has been largely eliminated from the animal population .