This comes after five vaccinated pigs died nine days post-vaccination due to an unreported pre-existing respiratory illness.
Blood tests confirmed the pigs were ASF-negative before receiving the vaccine, but their weakened immune systems contributed to their deaths.
The ASF vaccine takes 28 days to reach full effectiveness, providing 90-95 percent immunity. However, immunity levels remain around 40 percent during the first seven to 14 days post-vaccination.
The DA stated that poor biosecurity practices and unreported health issues can severely compromise vaccine efficacy, highlighting the need for farmers to strictly follow biosecurity protocols and report any health concerns promptly.
Agriculture Assistant Secretary for Swine and Poultry, Dr. Constante Palabrica, said "effective vaccine administration must be complemented by strict biosecurity measures. Both are crucial in preventing the spread of ASF."
Agriculture Secretary Francisco P. Tiu Laurel, Jr. echoed this sentiment, stressing that vaccines are only part of a broader strategy. He reminded farmers that honest health reporting and adherence to biosecurity protocols are critical for the recovery of the swine industry.
The DA remains optimistic about the vaccine's potential but warns that farmers' cooperation is essential. Efforts are underway to strengthen monitoring and reporting systems in partnership with local governments and the private sector to ensure the sustainability of the hog industry.
