对于许多重要畜病，现在已经有了防治的疫苗。由于普遍接种疫苗，大多数国家已基本上控制住了家禽的新城疫、牛和猪的霍乱、羊的搔痒

• "Vaccines have been developed for many serious livestock diseases. Newcastle disease in poultry, cholera in cattle and hogs, and scrapie in sheep have largely controlled in most countries as a result of widespread vaccination programs. "