d7b2d801__BRD_Testing____Cattle_Network__1
[0] Single PCR from lung lesion [2] Evidence the specific organism is associated with disease [3] Even with association, it may not isolate the true cause within diseased tissue, also, can’t tell natural infection from modified-live vaccination [1] 
Detects a piece of the organism’s genetic material
Have We Gotten a Little Too Smart on BRD Testing? | Cattle Network
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