JenEllen I feel for you if you are directly affected but if as happened in UK it spreads quickly and without boundaries start panicking now.
Another thing that the spokesman said on BBC radio 4 this morning was that cattle in USA are not individually identified through ear tags etc (I don't know if this was correct). In the UK we had this ID method and still took ages to trace infection lines. If this infection spreads I don't see a quick end due to the inability to trace the spread of cattle across the states. If this sounds pessimistic I apologise but reality sucks big time! However if the US Govt were only testing 20,000 from 35 Million as stated in other posts I would say that smacks of either arrogance or negligence, either of which when the health of the public is at risk is unforgiveable.
Hoping this is an isolated case.