H1N1 Flu Outbreak Virus Raises Questions: Iowa State researcher answers questions about the virus

摘要

Continuing growth in cases of the H1N1 Flu Outbreak Virus (just renamed by the U.S. Department of Agriculture) has raised many questions about the severity and control of the virus and the future implications for the swine industry, according to IowaState University (ISU) veterinary diagnostician Greg Stevenson, who spoke at a World Pork Expo seminar sponsored by Fort Dodge Animal Health. Interestingly, the proportion of swine respiratory cases in which influenza virus is detected at the ISU Veterinary Diagnostic Laboratory (VDL) has been declining since 2003 (see Figure 1). "That steady decrease has likely been due to changes in management as well as increased vaccine pressure," Stevenson says.