PMID- 34960807 OWN - NLM STAT- MEDLINE DCOM- 20220214 LR - 20220214 IS - 1999-4915 (Electronic) IS - 1999-4915 (Linking) VI - 13 IP - 12 DP - 2021 Dec 17 TI - Dynamics of the Enteric Virome in a Swine Herd Affected by Non-PCV2/PRRSV Postweaning Wasting Syndrome. LID - 10.3390/v13122538 [doi] LID - 2538 AB - A commercial pig farm with no history of porcine circovirus 2 (PCV2) or porcine reproductive and respiratory syndrome virus (PRRSV) repeatedly reported a significant reduction in body weight gain and wasting symptoms in approximately 20-30% of the pigs in the period between three and six weeks after weaning. As standard clinical interventions failed to tackle symptomatology, viral metagenomics were used to describe and monitor the enteric virome at birth, 3 weeks, 4 weeks, 6 weeks, and 9 weeks of age. The latter four sampling points were 7 days, 3 weeks, and 6 weeks post weaning, respectively. Fourteen distinct enteric viruses were identified within the herd, which all have previously been linked to enteric diseases. Here we show that wasting is associated with alterations in the enteric virome of the pigs, characterized by: (1) the presence of enterovirus G at 3 weeks of age, followed by a higher prevalence of the virus in wasting pigs at 6 weeks after weaning; (2) rotaviruses at 3 weeks of age; and (3) porcine sapovirus one week after weaning. However, the data do not provide a causal link between specific viral infections and the postweaning clinical problems on the farm. Together, our results offer evidence that disturbances in the enteric virome at the preweaning stage and early after weaning have a determining role in the development of intestinal barrier dysfunctions and nutrient uptake in the postweaning growth phase. Moreover, we show that the enteric viral load sharply increases in the week after weaning in both healthy and wasting pigs. This study is also the first to report the dynamics and co-infection of porcine rotavirus species and porcine astrovirus genetic lineages during the first 9 weeks of the life of domestic pigs. FAU - Folgueiras-Gonzalez, Alba AU - Folgueiras-Gonzalez A AUID- ORCID: 0000-0002-7688-6288 AD - Department Discovery & Technology, MSD Animal Health, Wim de Korverstraat 35, P.O. Box 31, 5830 AA Boxmeer, The Netherlands. AD - Laboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam UMC Location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands. FAU - van den Braak, Robin AU - van den Braak R AUID- ORCID: 0000-0002-7492-0614 AD - Department Discovery & Technology, MSD Animal Health, Wim de Korverstraat 35, P.O. Box 31, 5830 AA Boxmeer, The Netherlands. FAU - Deijs, Martin AU - Deijs M AD - Laboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam UMC Location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands. FAU - Kuller, Wikke AU - Kuller W AD - ULP-Farm Animal Practice, Reijerscopse Overgang 1, 3481 LZ Harmelen, The Netherlands. FAU - Sietsma, Steven AU - Sietsma S AD - ULP-Farm Animal Practice, Reijerscopse Overgang 1, 3481 LZ Harmelen, The Netherlands. FAU - Thuring, Valentijn AU - Thuring V AD - Pig Veterinary Practice Varkensartsen Nederland, Markgraven Dierenartsen, Almeloseweg 169, 7615 NA Harbrinkhoek, The Netherlands. FAU - van der Hoek, Lia AU - van der Hoek L AUID- ORCID: 0000-0003-2803-642X AD - Laboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam UMC Location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands. FAU - de Groof, Ad AU - de Groof A AUID- ORCID: 0000-0002-4129-4354 AD - Department Discovery & Technology, MSD Animal Health, Wim de Korverstraat 35, P.O. Box 31, 5830 AA Boxmeer, The Netherlands. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20211217 PL - Switzerland TA - Viruses JT - Viruses JID - 101509722 SB - IM MH - Animals MH - Astroviridae/isolation & purification MH - Enteroviruses, Porcine/*isolation & purification MH - Female MH - Intestines/*virology MH - Male MH - Metagenomics MH - Rotavirus/*isolation & purification MH - Sapovirus/*isolation & purification MH - Swine MH - Swine Diseases/*virology MH - Virome/*physiology MH - Wasting Syndrome/*veterinary/virology MH - Weaning PMC - PMC8705478 OTO - NOTNLM OT - PCV2 OT - PRRSV OT - VIDISCA-NGS OT - astrovirus OT - enterovirus G OT - failure to thrive syndrome (PFTS) OT - metagenomics OT - postweaning OT - rotavirus OT - sapovirus OT - swine OT - virome OT - wasting COIS- The authors of this manuscript have the following competing interests: A.F.G., R.v.d.B. and A.d.G. are employed at MSD Animal Health, a commercial company. EDAT- 2021/12/29 06:00 MHDA- 2022/02/15 06:00 PMCR- 2021/12/17 CRDT- 2021/12/28 01:08 PHST- 2021/10/29 00:00 [received] PHST- 2021/12/13 00:00 [accepted] PHST- 2021/12/28 01:08 [entrez] PHST- 2021/12/29 06:00 [pubmed] PHST- 2022/02/15 06:00 [medline] PHST- 2021/12/17 00:00 [pmc-release] AID - v13122538 [pii] AID - viruses-13-02538 [pii] AID - 10.3390/v13122538 [doi] PST - epublish SO - Viruses. 2021 Dec 17;13(12):2538. doi: 10.3390/v13122538.