PMID- 25805833 OWN - NLM STAT- MEDLINE DCOM- 20150806 LR - 20200220 IS - 0032-5791 (Print) IS - 0032-5791 (Linking) VI - 94 IP - 5 DP - 2015 May TI - Isolation of chicken astrovirus from specific pathogen-free chicken embryonated eggs. PG - 947-54 LID - 10.3382/ps/pev086 [doi] AB - Astroviruses have been associated with enteric disorders in many animal species, including chickens. Here, we describe the isolation, propagation, and pathological characteristics of chicken astrovirus (CAstV) in specific pathogen free (SPF) chicken embryonated eggs (CEE) from chickens with diarrhea and runting-stunting syndrome. The CEE were inoculated via the yolk sac route. Viral confirmation was carried out using PCR techniques and transmission electron microscopy negative staining with ammonium molybdate. The intestinal contents were screened for CAstV, and differential diagnostic testing was performed for avian nephritis virus, avian rotavirus, avian reovirus, chicken parvovirus, infectious bronchitis virus, and fowl adenovirus Group I to detect co-infection with other infectious agents. Seven- or 14-day-old CEEs presented with hemorrhages, edema, a gelatinous aspect, deformities, and dwarfism. The supporting membranes did not show any alterations. Here, we have described the isolation of CAstV and its pathological characteristics in SPF CEE. CI - (c) 2015 Poultry Science Association Inc. FAU - Nunez, Luis Fabian N AU - Nunez LF AD - Department of Pathology, School of Veterinary Medicine, University of Sao Paulo, Av. Prof. Dr. Orlando M. Paiva, 87, 05508-270, Sao Paulo, SP, Brazil. FAU - Parra, Silvana H Santander AU - Parra SH AD - Department of Pathology, School of Veterinary Medicine, University of Sao Paulo, Av. Prof. Dr. Orlando M. Paiva, 87, 05508-270, Sao Paulo, SP, Brazil. FAU - Mettifogo, Elena AU - Mettifogo E AD - Department of Pathology, School of Veterinary Medicine, University of Sao Paulo, Av. Prof. Dr. Orlando M. Paiva, 87, 05508-270, Sao Paulo, SP, Brazil. FAU - Catroxo, Marcia Helena B AU - Catroxo MH AD - Laboratory of Electron Microscopy, Center for Research and Development of Animal Health, InstitutoBiologico, Av. Cons. Rodrigues Alves, 1252, 04014-002, Sao Paulo, SP, Brazil. FAU - Astolfi-Ferreira, Claudete S AU - Astolfi-Ferreira CS AD - Department of Pathology, School of Veterinary Medicine, University of Sao Paulo, Av. Prof. Dr. Orlando M. Paiva, 87, 05508-270, Sao Paulo, SP, Brazil. FAU - Piantino Ferreira, Antonio J AU - Piantino Ferreira AJ AD - Department of Pathology, School of Veterinary Medicine, University of Sao Paulo, Av. Prof. Dr. Orlando M. Paiva, 87, 05508-270, Sao Paulo, SP, Brazil ajpferr@usp.br. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150323 PL - England TA - Poult Sci JT - Poultry science JID - 0401150 SB - IM MH - Animals MH - Avastrovirus/*isolation & purification/ultrastructure MH - Chick Embryo/*virology MH - Polymerase Chain Reaction/methods/veterinary MH - Specific Pathogen-Free Organisms MH - Tomography, X-Ray Computed MH - Virus Cultivation/methods OTO - NOTNLM OT - chicken astrovirus OT - chicken embryonated eggs OT - enteric virus OT - viral isolation EDAT- 2015/03/26 06:00 MHDA- 2015/08/08 06:00 CRDT- 2015/03/26 06:00 PHST- 2015/01/15 00:00 [accepted] PHST- 2015/03/26 06:00 [entrez] PHST- 2015/03/26 06:00 [pubmed] PHST- 2015/08/08 06:00 [medline] AID - S0032-5791(19)32487-3 [pii] AID - 10.3382/ps/pev086 [doi] PST - ppublish SO - Poult Sci. 2015 May;94(5):947-54. doi: 10.3382/ps/pev086. Epub 2015 Mar 23.