PMID- 36213411 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221011 IS - 2297-1769 (Print) IS - 2297-1769 (Electronic) IS - 2297-1769 (Linking) VI - 9 DP - 2022 TI - Porcine reproductive and respiratory syndrome virus RNA detection in tongue tips from dead animals. PG - 993442 LID - 10.3389/fvets.2022.993442 [doi] LID - 993442 AB - The control of porcine reproductive and respiratory syndrome virus (PRRSV) hinges on monitoring and surveillance. The objective of this study was to assess PRRSV RNA detection by RT-PCR in tongue tips from dead suckling piglets compared to serum samples, processing fluids, and family oral fluids. Tongue tips and serum samples were collected from three PRRSV-positive breeding herd farms (farms A, B, and C) of three different age groups: newborns (<24 h), processing (2 to 7 days of age), and weaning (18 to 22 days of age). Additionally, processing fluids and family oral fluids were collected from 2-7 days of age and weaning age, respectively. In farms A and B, PRRSV RNA was detected in tongue tips from all age groups (100 and 95%, respectively). In addition, PRRSV RNA was detected in pooled serum samples (42 and 27%), processing fluids (100 and 50%), and family oral fluids (11 and 22%). Interestingly, the average Ct value from tongue tips was numerically lower than the average Ct value from serum samples in the newborn age. In farm C, PRRSV RNA was only detected in serum samples (60%) and family oral fluids (43%), both from the weaning age. Further, no PRRSV RNA was detected in tongue tips when pooled serum samples from the same age group tested PRRSV RNA-negative. Taken together, these results demonstrate the potential value of tongue tips for PRRSV monitoring and surveillance. CI - Copyright (c) 2022 Machado, Magalhaes, Poeta Silva, Moraes, Cezar, Mil-Homens, Osemeke, Paiva, Moura, Gauger, Trevisan, Silva and Linhares. FAU - Machado, Isadora F AU - Machado IF AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Magalhaes, Edison S AU - Magalhaes ES AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Poeta Silva, Ana Paula S AU - Poeta Silva APS AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Moraes, Daniel C A AU - Moraes DCA AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Cezar, Guilherme AU - Cezar G AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Mil-Homens, Mafalda P AU - Mil-Homens MP AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Osemeke, Onyekachukwu H AU - Osemeke OH AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Paiva, Rodrigo AU - Paiva R AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Moura, Cesar A A AU - Moura CAA AD - Iowa Select Farms, Iowa Falls, IA, United States. FAU - Gauger, Phillip AU - Gauger P AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Trevisan, Giovani AU - Trevisan G AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Silva, Gustavo S AU - Silva GS AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. FAU - Linhares, Daniel C L AU - Linhares DCL AD - Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States. LA - eng PT - Journal Article DEP - 20220921 PL - Switzerland TA - Front Vet Sci JT - Frontiers in veterinary science JID - 101666658 PMC - PMC9533096 OTO - NOTNLM OT - PRRSV OT - family oral fluids OT - pooled serum samples OT - population-based sampling OT - processing fluids OT - surveillance OT - tongue tips COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/10/11 06:00 MHDA- 2022/10/11 06:01 PMCR- 2022/01/01 CRDT- 2022/10/10 04:31 PHST- 2022/07/13 00:00 [received] PHST- 2022/08/18 00:00 [accepted] PHST- 2022/10/10 04:31 [entrez] PHST- 2022/10/11 06:00 [pubmed] PHST- 2022/10/11 06:01 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 10.3389/fvets.2022.993442 [doi] PST - epublish SO - Front Vet Sci. 2022 Sep 21;9:993442. doi: 10.3389/fvets.2022.993442. eCollection 2022.