Swine respiratory disease can destroy profitability in pig production. Often, multiple diseases, or co-infections, are involved, which can increase the length and severity of the diseases. These diseases are caused by respiratory viruses and pathogens within the porcine respiratory disease complex (PRDC), which includes both viral and bacterial respiratory pathogens, specifically porcine reproductive and respiratory syndrome virus (PRRSV), porcine circovirus Type 2 (PCV2), Mycoplasma hyopneumoniae (Mhp), influenza A virus in swine (IAV-S) and secondary bacterial agents.
PRRS
Porcine reproductive and respiratory syndrome (PRRS) continues to be the most economically significant disease affecting the U.S. swine industry.1
Mhp
Mycoplasma hyopneumoniae (Mhp) is one of the smallest bacteria found in nature, and it can cause porcine enzootic pneumonia in pigs.
PCV2
There are three major porcine circovirus Type 2 (PCV2) genotypes in circulation: PCV2a, b and d, with PCV2d accounting for more than 90% of U.S. PCV2 infections.2–3
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