Genetic resistance: the first choice of PRRS prevention

There is no doubt that Porcine Reproductive and Respiratory Syndrome (PRRS) has been one of the most influential viral pig diseases in the past few decades. How good would it be if pigs were simply resistant to the virus? Researchers around the globe have been taking steps in that direction for many years. PRRS is a major disease limiting the development of large-scale pig production systems, thus leading to massive economic losses of about US$ 650 million annually. That excludes costs for