A joint study with Iowa State University and Boehringer Ingelheim Vetmedica Inc. in St. Joseph, Mo., has indicated other swine diseases play a key role in PCVAD occurrence and severity. The announcement was made during the World Pork Expo here June 8

In addition to porcine circovirus type 2 (PCV2), other diseases such as porcine reproductive and respiratory syndrome (PRRS), salmonella and influenza are usually part of any PCVAD outbreak, said John Kolb, senior manager for swine biologicals with Boehringer Ingelheim.

Kolb worked with ISU researcher Kent Schwartz on the Monitoring Assignment for Global Insight of Circovirus (MAGIC) study.

About 60 farms were surveyed throughout 2006, he noted.

“ABOUT 72 percent of the pigs with PCVAD were infected with PRRS, while 58 percent had salmonella, 30 percent had influenza and 20 percent had mycoplasma,” he said.

“The key appears to be the diseases that are present with the PCV2.”

Kolb said farms with at least twice the normal mortality were surveyed, adding they were located throughout the United States.

Source: Tri State Neighbor

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