A case of 'mad cow disease' has been confirmed in a 9-year-old animal in Marabá, Mato Grosso do Sul, leading to an embargo on Brazilian beef exports to China. The local government is reviewing the economic impact and will propose ways to reinstate trade. The World Organization for Animal Health has been notified and the carcass was incinerated. The suspension of exports is affecting three slaughterhouses in the state and likely to decrease meat prices and producers' income. However, meat production for other markets can continue.