Christensen J - Search Results

1

Pig and herd level prevalence of Toxoplasma gondii in Ontario finisher pigs in 2001, 2003, and 2004.

Poljak Z, Dewey CE, Friendship RM, Martin SW, Christensen J, Ojkic D, Wu J, Chow E. Poljak Z, et al. Among authors: christensen j. Can J Vet Res. 2008 Jul;72(4):303-10. Can J Vet Res. 2008. PMID: 18783018 Free PMC article.

2

Spatial clustering of swine influenza in Ontario on the basis of herd-level disease status with different misclassification errors.

Poljak Z, Dewey CE, Martin SW, Christensen J, Carman S, Friendship RM. Poljak Z, et al. Among authors: christensen j. Prev Vet Med. 2007 Oct 16;81(4):236-49. doi: 10.1016/j.prevetmed.2007.04.018. Epub 2007 May 24. Prev Vet Med. 2007. PMID: 17531333

3

Prevalence of and risk factors for influenza in southern Ontario swine herds in 2001 and 2003.

Poljak Z, Dewey CE, Martin SW, Christensen J, Carman S, Friendship RM. Poljak Z, et al. Among authors: christensen j. Can J Vet Res. 2008 Jan;72(1):7-17. Can J Vet Res. 2008. PMID: 18214156 Free PMC article.

4

Field efficacy of an inactivated bivalent influenza vaccine in a multi-site swine production system during an outbreak of systemic porcine circovirus associated disease.

Poljak Z, Dewey CE, Martin SW, Christensen J, Friendship RM. Poljak Z, et al. Among authors: christensen j. Can J Vet Res. 2010 Apr;74(2):108-17. Can J Vet Res. 2010. PMID: 20592840 Free PMC article. Clinical Trial.

5

Herd prevalence of Salmonella spp. in Danish pig herds after implementation of the Danish Salmonella Control Program with reference to a pre-implementation study.

Christensen J, Baggesen DL, Nielsen B, Stryhn H. Christensen J, et al. Vet Microbiol. 2002 Aug 25;88(2):175-88. doi: 10.1016/s0378-1135(02)00103-7. Vet Microbiol. 2002. PMID: 12135636

6

Estimation of the population size of Canadian commercial poultry farms by log-linear capture-recapture analysis.

El Allaki F, Christensen J, Vallières A, Paré J. El Allaki F, et al. Among authors: christensen j. Can J Vet Res. 2014 Oct;78(4):267-73. Can J Vet Res. 2014. PMID: 25355995 Free PMC article.

7

Molecular profile and epidemiological traits of Streptococcus suis isolated from diseased pigs in western Canada reveal multiple-serotype infection: Implications for disease control.

de O Costa M, Gamage R, Christensen J. de O Costa M, et al. Among authors: christensen j. Can Vet J. 2024 May;65(5):429-436. Can Vet J. 2024. PMID: 38694742 Free PMC article.

8

Risk factors for infection of sow herds with porcine reproductive and respiratory syndrome (PRRS) virus.

Mortensen S, Stryhn H, Søgaard R, Boklund A, Stärk KD, Christensen J, Willeberg P. Mortensen S, et al. Among authors: christensen j. Prev Vet Med. 2002 Feb 14;53(1-2):83-101. doi: 10.1016/s0167-5877(01)00260-4. Prev Vet Med. 2002. PMID: 11821139

9

A scenario tree model for the Canadian Notifiable Avian Influenza Surveillance System and its application to estimation of probability of freedom and sample size determination.

Christensen J, Stryhn H, Vallières A, El Allaki F. Christensen J, et al. Prev Vet Med. 2011 May 1;99(2-4):161-75. doi: 10.1016/j.prevetmed.2011.01.005. Epub 2011 Feb 16. Prev Vet Med. 2011. PMID: 21324539

10

Standards for reporting surveillance information in freedom from infection models by example of Trichinella in Canadian market hogs.

Vanderstichel R, Christensen J, Stryhn H, Hurnik D. Vanderstichel R, et al. Among authors: christensen j. Prev Vet Med. 2013 Aug 1;111(1-2):176-80. doi: 10.1016/j.prevetmed.2013.03.012. Epub 2013 Apr 23. Prev Vet Med. 2013. PMID: 23623714

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