Western Canadian Animal Health Network Information Library

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Swine Disease Reporting System (SDRS) 78 August 2024

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Overall, 19.78% of 6,502 cases tested PRRSV-positive in July, a moderate decrease from 22.23% of 6,587 in June;
• Positivity in the adult/sow category in July was 16.17% (476 of 2,944), a moderate decrease from 19.01% (593 of 3,120) in June;
• Positivity in the wean-to-market category in July was 32.6% (656 of 2,012), similar to 33.7% (651 of 1,932) in June;
• Overall PRRSV-percentage of positive cases was 3 standard deviations above state-specific baselines IN, OK, and SD;
• The advisory group highlighted that the percentage of positive submissions above the expected in Indiana state might be due to
surveillance strategies in some production systems. However, regarding Kansas state, the advisory highlighted that it appears to have
new PRRSV introductions, causing increased PRRSV activity.