During the annual convention of the Mexican Association of Poultry Science Specialists, Aneca, last week, Dr. Assad Heneidi of the Mexican Food Safety Agency, Senasica, mentioned in his presentation the confirmation by polymerase chain reaction of the presence of avian influenza in the state of Puebla, Mexico. On May 9, the World Organsation for Animal Health confirmed this with the release of an updated avian influenza report.

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The outbreak in the municipality of Palmar del Bravo, Puebla, began May 1 in a commercial layer farm and was resolved May 7, leaving 40,000 dead animals. Avian influenza was confirmed by the National Reference Laboratory using virus isolation on May 6. On May 7, the farm was depopulated and counter-epidemic activities began, such as cleaning, washing and disinfection of facilities and equipment, as well as perifocal sampling within a radius of 10 km, in addition to state surveillance.