DUMAGUETE CITY, Aug. 3 -- The Provincial Veterinary Office of Negros Oriental has reported new African swine fever (ASF) cases in three local government units, prompting the culling of infected and exposed hogs as authorities intensify surveillance and monitoring efforts.

Provincial veterinarian Dr. Melody Vilan said Monday that new confirmed ASF cases were recorded in Siaton, Amlan and Tanjay City, all of which had previously reported infections.

"We have culled the infected pigs and those exposed to them while continuing the collection of blood samples," Vilan told the Philippine News Agency.

Laboratory results showed that six of the eight blood samples collected from Siaton tested positive for ASF. The infected hogs were from Barang...