The Indonesian Ministry of Agriculture has officially declared that on 23 November 2009 an outbreak of pandemic influenza A/H1N1 in pigs occurred.
An outbreak investigation has been conducted by the Disease Investigation Center, Region II, Bukittinggi. 180 nasal swabs and serum samples were collected in pigs in the breeder, weaner and farrow/finishing units.
33 samples were positive for influenza A and divided on 11 pool samples, which were sent to the Indonesian Research Center for Veterinary Sciences and to the Australian Animal Health Laboratory for advanced tests. 6 samples were positive for pandemic influenza A/H1N1.