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Emerging Strains of PRRS Can Be Highly Virulent
2016-01-22 01:00:00| ThePigSite - Industry News
ANALYSIS - Emerging strains of Porcine Reproductive and Respiratory Syndrome (PRRS) can develop on a regularly basis and every few years a particularly virulent strain will arise and cause waves of disease, reports Sarah Mikesell from the North American PRRS Symposium.
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Category:Agriculture and Forestry