 What gets a little more challenging oftentimes is finding the root cause of some of those health challenges. And oftentimes I think we look for that one thing that may be causing health challenges or disease outbreaks. And in all reality, I think deep down we understand a co-infection is likely the cause where we have multiple pathogens at play and multiple stressors contributing to disease. What do producers need to do to better understand the causes of these co-infections?