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Levamisole as vaccine adjuvant: dose, schedule and FMD data
Levamisole as vaccine adjuvant works as a separate oral course, not as an ingredient inside the shot. In a two-species study, oral levamisole given alongside an intramuscular foot-and-mouth disease vaccine lifted antibody and neutralizing responses in both mice and swine. Survival after challenge in mice went from 2 of 5 to 5 of 5. The injectable vaccine was never reformulated. Why levamisole as vaccine adjuvant is a scheduling question Foot-and-mouth disease is one of the costliest infections of cloven-hoofed livestock. An outbreak stops animal movement, cuts productivity, and closes export markets. Inactivated vaccination stays the backbone of control. Producers want more protection out of the vaccines they already own. What…
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Deworming and vaccination: FMD protection drops to 6.25%
Deworming and vaccination scheduled on the same day cut foot-and-mouth disease protection to 6.25 percent in sheep. Giving the FMD vaccine alone reached 37.50 percent. A second vaccine in the same session was worse still, dropping protection to zero by day 28. The antigen load is not the problem. Immune competition is. Why deworming and vaccination timing became a real problem Foot-and-mouth disease virus is a highly contagious pathogen of cloven-hoofed livestock, and vaccination is the most economical control measure available. The practical constraint on intensive sheep farms is labor. Catching and handling animals stresses the flock and costs the farm money, so producers fold interventions into one session: the…
