Scientists say the practice of feeding biological material from cows to cows can spread the disease.

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If nurses get the care of older people right by applying the theory to practice, paying attention to feeding them and providing them with fluids, washing and cleaning them when they are unable to wash themselves, communicating with them and encouraging them through caring, kindness and compassion then caring for other patients will come naturally.

BBC: 'Shame on us nurses'

Like Bhatia, Krugman says that in his practice, and in those of most pediatricians he knows, he avoids any extreme messages around feeding.

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