An outbreak of bird-flu virus in western Mexico has infected about 2.5 million chickens and led authorities to destroy or dispose of nearly 1 million birds. The country's Agriculture Department said 129 farms in the western state of Jalisco have been inspected. The H7N3 avian-influenza virus was confirmed in birds at 24 of the sites, and tests continued on most of the rest. The farms in question have been quarantined, the department said in a statement late Tuesday. The outbreak has caused price increases in chicken and egg products in Mexico.
