Isobel Dobson, of Hemsworth, died after being trapped in a burning van during a fire at Hessle Farm in Wragby, near Wakefield, on 30 September 2011.

BBC: Isobel Dobson's stepfather 'probably started' fire

Children have been affected too - many have witnesses burning piles of dead animals close to their home or were sent away from home if the crisis caused their farm to go into quarantine.

BBC: Help for stressed foot-and-mouth farmers