Post-licensing evaluation of Porvac® subunit vaccine against classical swine fever in two pig genetic development farms in Cuba.
Sordo-Puga Y, Sardina-González T, Méndez-Orta MK, Hernández-García M, Vargas-Hernández M
Animal Agriculture
Healthier pig herds mean more stable pork supplies and less pressure to convert forest or pasture land into replacement livestock operations.
Classical swine fever is a serious pig disease that's hard to stamp out because older vaccines can allow low-grade strains to quietly spread. Cuban researchers followed two pig breeding farms for six years after they switched to a newer vaccine called Porvac®. Every single breeding animal developed protective immunity, and that protection held steady across the entire study period.
Key Findings
Herd immunity increased from 50% to 100% after Porvac® introduction and was maintained over six years.
All breeding stock developed protective neutralizing antibody titres against Classical Swine Fever virus.
Porvac® prevents vertical (mother-to-offspring) transmission, a key advantage over older modified live vaccines.
chevron_right Technical Summary
A six-year follow-up study in Cuba found that switching pig farms to Porvac®, a next-generation subunit vaccine, raised herd immunity against Classical Swine Fever from 50% to 100% and kept it there, suggesting the vaccine could help eliminate the virus from the country.
Abstract Preview
Classical swine fever (CSF) is one of the most important diseases affecting pigs. For years, the main strategy to control CSF outbreaks in endemic regions has been a combination of stamping out of ...
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