A topographical map showing locations in the Philippines where swine serum samples were obtained. Swine serum samples were collected at farms in three regions in the Philippines, Bulacan, Pangasinan and Tarlac. These regions were showed the numbers of specimens and percentage of positivity using NT. The three locations and Laguna, where the Ferlite monkey facility used to be located, are shown on a Google map (©2011 Google Map data ©2011 AND Europa Technologies).
Sayama et al. BMC Veterinary Research 2012 8:82 doi:10.1186/1746-6148-8-82