PMID- 16820475 OWN - NLM STAT- MEDLINE DCOM- 20060905 LR - 20240315 IS - 0099-2240 (Print) IS - 1098-5336 (Electronic) IS - 0099-2240 (Linking) VI - 72 IP - 7 DP - 2006 Jul TI - Optimization of a sampling system for recovery and detection of airborne porcine reproductive and respiratory syndrome virus and swine influenza virus. PG - 4811-8 AB - The objective of this research was to optimize sampling parameters for increased recovery and detection of airborne porcine reproductive and respiratory syndrome virus (PRRSV) and swine influenza virus (SIV). Collection media containing antifoams, activated carbons, protectants, and ethylene glycol were evaluated for direct effects on factors impacting the detection of PRRSV and SIV, including virus infectivity, viability of continuous cell lines used for the isolation of these viruses, and performance of reverse transcriptase PCR assays. The results showed that specific compounds influenced the likelihood of detecting PRRSV and SIV in collection medium. A subsequent study evaluated the effects of collection medium, impinger model, and sampling time on the recovery of aerosolized PRRSV using a method for making direct comparisons of up to six treatments simultaneously. The results demonstrated that various components in air-sampling systems, including collection medium, impinger model, and sampling time, independently influenced the recovery and detection of PRRSV and/or SIV. Interestingly, it was demonstrated that a 20% solution of ethylene glycol collected the greatest quantity of aerosolized PRRSV, which suggests the possibility of sampling at temperatures below freezing. Based on the results of these experiments, it is recommended that air-sampling systems be optimized for the target pathogen(s) and that recovery/detection results should be interpreted in the context of the actual performance of the system. FAU - Hermann, J R AU - Hermann JR AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011-1250, USA. FAU - Hoff, S J AU - Hoff SJ FAU - Yoon, K J AU - Yoon KJ FAU - Burkhardt, A C AU - Burkhardt AC FAU - Evans, R B AU - Evans RB FAU - Zimmerman, J J AU - Zimmerman JJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Appl Environ Microbiol JT - Applied and environmental microbiology JID - 7605801 RN - 0 (Antifoaming Agents) RN - 0 (Culture Media) RN - 0 (Ethylene Glycols) SB - IM MH - *Air Microbiology MH - Animals MH - Antifoaming Agents/pharmacology MH - Cell Line MH - Culture Media MH - Ethylene Glycols/pharmacology MH - Influenza A virus/genetics/*isolation & purification/pathogenicity MH - Orthomyxoviridae Infections/veterinary MH - Porcine Reproductive and Respiratory Syndrome/virology MH - Porcine respiratory and reproductive syndrome virus/genetics/*isolation & purification/pathogenicity MH - Specimen Handling/*methods MH - Swine MH - Swine Diseases/virology MH - Virology/methods PMC - PMC1489351 EDAT- 2006/07/06 09:00 MHDA- 2006/09/06 09:00 PMCR- 2006/11/01 CRDT- 2006/07/06 09:00 PHST- 2006/07/06 09:00 [pubmed] PHST- 2006/09/06 09:00 [medline] PHST- 2006/07/06 09:00 [entrez] PHST- 2006/11/01 00:00 [pmc-release] AID - 72/7/4811 [pii] AID - 0472-06 [pii] AID - 10.1128/AEM.00472-06 [doi] PST - ppublish SO - Appl Environ Microbiol. 2006 Jul;72(7):4811-8. doi: 10.1128/AEM.00472-06.