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Detection of enteric pathogens in Turkey flocks affected with severe enteritis,in Brazil |
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| Authors: | Joelma Moura-Alvarez Luis F N Nuñez Claudete S Astolfi-Ferreira Terezinha Knöbl Jorge L Chacón Andrea M Moreno Richard C Jones Antonio J Piantino Ferreira |
| Institution: | 1. Department of Pathology, School of Veterinary Medicine, University of S?o Paulo, S?o Paulo, SP, Brazil 2. Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine, University of S?o Paulo, S?o Paulo, SP, Brazil 3. Department of Infection Biology, Institute of Global Health, University of Liverpool, Leahurst Campus, Neston, South Wirral, CH64 7TE, Liverpool, UK |
| Abstract: | Twenty-two flocks of turkeys affected by enteric problems, with ages between 10 and 104 days and located in the Southern region of Brazil, were surveyed for turkey by PCR for turkey astrovirus type 2 (TAstV-2), turkey coronavirus (TCoV), hemorrhagic enteritis virus (HEV), rotavirus, reovirus, Salmonella spp., and Lawsonia intracellularis (Li) infections. Eleven profiles of pathogen combination were observed. The most frequently encountered pathogen combinations were TCoV-Li, followed by TCoV-TAstV-2-Li, TCoV-TastV-2. Only TCoV was detected as the sole pathogen in three flocks. Eight and 19 flocks of the 22 were positive for TAstV-2 and TCoV, respectively. Six were positive for Salmonella spp. and L. intracellularis was detected in 12 turkey flocks. Reovirus and HEV were not detected in this survey. These results throw new light on the multiple etiology of enteritis in turkeys. The implications of these findings and their correlation with the clinical signs are comprehensively discussed, illustrating the complexity of the enteric diseases. |
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