d7b2d801__BRD_Testing____Cattle_Network__1
[0] Culture of the airways or fluid [2] It can demonstrate active infection is taking place [3] Just because you culture a virus or bacteria doesn’t mean it’s causing disease in the lung; plus, it typically takes days to weeks for results [1] 
Can find both bacteria and viruses
Have We Gotten a Little Too Smart on BRD Testing? | Cattle Network
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