Summary of: Evaluation of viral RNA extraction methods to detect PRRS and influenza A viruses from used commercial HVAC air filters from swine farms

Key Points Little is known about the type and nature of viruses that get trapped in commercial filters on swine farms due to a lack of sampling methods. The first part of this study established effective methods for eluting and identifying PRRS and IAV viruses in MERV filters under lab conditions. The second part of the study tested the verified method on used filters from swine farms, verifying the presence of both PRRS and IAV