PRRS from 30,000 feet: A 15 year uphill climb...Have we reached the top or bottomed out?

摘要

There is little doubt that the swine industry as a whole is making excellent progress in the control and elimination of Porcine Reproductive Respiratory Syndrome (PRRS) virus (v) in individual herds and production systems. The first serologic evidenceof PRRSv was discovered in an Iowa herd in 1985. If one compares the progress to controlling other RNA viruses such as swine influenza (SI) virus to that of PRRSv, it is obvious that tremendous advances have been made for PRRS control in a very short time period. Swine influenza virus was first described in 1930 and yet today, we still struggle to reduce its economic impact. At the present time in the U.S., PRRSv infections are much more economically devastating as compared to illness either due to SIv or any other porcine infectious agent. Although producers in Europe might suggest that losses from Porcine Multi-systemic Wasting Disease Syndrome are much greater than PRRS.