Farmers have about half a day between symptoms appearing and the animal becoming infectious, giving them a bit of time to separate it fromothers before it is able to pass on the disease.
While some of Lopez-Obrador's party representatives in congress have tried to separate themselves from his combative tactics, others say they will try and block Calderon from taking office.
This case is separatefrom another telecom case in which former Telecom Minister Andimuthu Raja and 16 others are charged with irregularities in a 2008 allotment of telecom spectrum.
Rockefeller's Standard Oil Co. had abused its monopoly power to keep othersfrom competing and ordered the company to divide into 34 separate companies.
Others thanked him for coming and later the mayor got big cheers from a separate crowd as he brandished a broom and thanked those volunteers who had arrived to help clear up the mess as representing the real "spirit of London".