date:Aug 10, 2012
Eight million more chickens have been slaughtered and another 66 million have been vaccinated in an effort to contain the outbreak, according to chron.com. Vaccines were imported from Pakistan, and Mexico's agriculture officials said they developed a seed-based vaccine to be delivered to laboratories in preparations to make more than 80 million doses.
The virus was first uncovered in Mexicos western state of Jalisco on June 20. Mexicos government issued a national animal health emergency on Jul