Recommended vaccine programs for village-based pig production systems in Lao PDR

Abstract

Classical swine fever (CSF) virus is endemic in Lao PDR, with major outbreaks each year resulting in significant production losses in all farming systems, including smallholder, semi-intensive and intensive farms. CSF is a vaccine-preventable disease and there are many vaccines, both live attenuated and subunit, commercially available. In Lao PDR a variety of livestock vaccines are produced at the National Vaccine Production Centre (NVPC), which is located at Nongteng village 15 km from Vientiane. The NVPC was established in 1980 and produces vaccines for CSF, haemorrhagic septicaemia, Newcastle disease, fowl cholera, infectious bronchitis, fowl pox and duck plague. CSF vaccine is produced from the live attenuated C-strain virus from homogenised rabbit spleen and mesenteric lymph nodes freeze dried in the presence of stabilisers in a rubber stoppered vial and stored at –20 °C