Frequency of PRRS live vaccine virus (European and North American genotype) in vaccinated and non-vaccinated pigs submitted for respiratory tract diagnostics in North-Western Germany

Nathues, Heiko; Meemken, D.; Harder, T.C.; Doherr, M.G.; Grotha, I.; Greiser-Wilke, I. (2009). Frequency of PRRS live vaccine virus (European and North American genotype) in vaccinated and non-vaccinated pigs submitted for respiratory tract diagnostics in North-Western Germany. Preventive veterinary medicine, 92(1-2), pp. 31-7. Amsterdam: Elsevier 10.1016/j.prevetmed.2009.07.010

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The frequency of PRRSV corresponding to live vaccines and wild-type was determined in 902 pigs from North-Western Germany submitted for post-mortem examination. Overall, 18.5% of the samples were positive for the EU wild-type virus. EU genotype vaccine virus was detected in 1.3% and the NA genotype vaccine virus in 8.9% of all samples. The detection of the EU vaccine was significantly higher in pigs vaccinated with the corresponding vaccine (OR=9.4). Pigs vaccinated with NA genotype had significantly higher detection chances for the corresponding vaccine virus when compared to non-vaccinated animals (OR=3.34) animals, however, NA vaccine was also frequently detected in non-vaccinated pigs. Concluding, the dynamics of NA genotype vaccine and EU wild-type virus corresponds with studies on PRRSV spread in endemically infected herds. The potential of spontaneous spread of the NA genotype vaccine should be considered in the planning of eradication programs.

Item Type:	Journal Article (Original Article)
Division/Institute:	05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Swine Clinic 05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > DVK - Clinical Research [discontinued] 05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Experimental Clinical Research
UniBE Contributor:	Nathues, Heiko, Doherr, Marcus
Subjects:	600 Technology > 630 Agriculture
ISSN:	0167-5877
Publisher:	Elsevier
Language:	English
Submitter:	Factscience Import
Date Deposited:	04 Oct 2013 15:25
Last Modified:	05 Dec 2022 14:26
Publisher DOI:	10.1016/j.prevetmed.2009.07.010
Web of Science ID:	000271176700004
URI:	https://boris.unibe.ch/id/eprint/38241 (FactScience: 220759)