The first case of mad cow disease was confirmed in a cow in the United States in December 2003 . Patient in Texas who recently died had Variant Creutzfeldt - Jakob disease . Variant CJD is brain disorder related to beef from Texas with mad cow disease . Texan patient traveled extensively to Europe , Middle East , CDC USA .
Patient in Texas who recently died had Variant Creutzfeldt - Jakob disease . Variant CJD is brain disorder related to beef from Texas with mad cow disease . Texan patient traveled extensively to Europe , Middle East , CDC USA .