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  Home > Swine Diseases > PRRSv Knowlege Center
 

PRRSv Knowlege Center

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National PRRSv Incidence Project

Current Exponentially Weighted Moving Average Analysis 3/2014

EWMA_3_14

 

Cumulative Incidence 3/2014

CI_3_14

 

For Information on the the PRRS Incidence Project, please click here.

 

 


PRRSv Research at the UMN (areas of research focus, accomplishments and highlights)

• Validation of air filtration for preventing PRRSV infection in breeding herds.
• Demonstration of long-distance airborne transport of infectious PRRSV and Mycoplasma hyopneumoniae
• Assessment of biosecurity methods (UV light, type of filters and shutters, transport protocols) to prevent PRRSV introduction and dissemination
• Regional eradication programs for PRRS
• An assessment of sampling techniques for the detection of low prevalence PRRSV infection in neonatal piglets
• Evaluation of tools (vaccination, population exposure) to limit PRRSV dissemination
• Development and testing of biosecurity protocols using an endemically infected region model for PRRSV


Recent Publications:
(*Research supported in part by the SDEC)

*Dee S, Otake S, Deen J. An evaluation of ultraviolet light (UV254) as a means to inactivate porcine reproductive and respiratory syndrome virus on common farm surfaces and materials. Vet Microbiol. 2011 May 12;150(1-2):96-9. Epub 2011 Jan 15. View full abstract.

*Corzo CA, Mondaca E, Wayne S, Torremorell M, Dee S, Davies P, Morrison RB. Control and elimination of porcine reproductive and respiratory syndrome virus. Virus Res. 2010 Dec;154(1-2):185-92. Epub 2010 Sep 17. Review. PubMed PMID: 20837071.

*Shi M, Lam TT, Hon CC, Murtaugh MP, Davies PR, Hui RK, Li J, Wong LT, Yip CW, Jiang JW, Leung FC. Phylogeny-based evolutionary, demographical, and geographical dissection of North American type 2 porcine reproductive and respiratory syndrome viruses. J Virol. 2010 Sep;84(17):8700-11. Epub 2010 Jun 16. PubMed PMID: 20554771; PubMed Central PMCID: PMC2919017

*Cano JP, Dee SA, Murtaugh MP, Rovira A, Morrison RB. Infection dynamics and clinical manifestations following experimental inoculation of gilts at 90 days of gestation with a low dose of porcine reproductive and respiratory syndrome virus. Can J Vet Res. 2009 Oct;73(4):303-7. PubMed PMID: 20046633; PubMed Central PMCID: PMC2757712.

*Dee S, Otake S, Oliveira S, Deen J. Evidence of long distance airborne transport of porcine reproductive and respiratory syndrome virus and Mycoplasma hyopneumoniae. Vet Res. 2009 Jul-Aug;40(4):39. Epub 2009 Apr 21. PubMed PMID: 19379664; PubMed Central PMCID: PMC2701181.

*Pitkin A, Deen J, Otake S, Moon R, Dee S. Further assessment of houseflies (Musca domestica) as vectors for the mechanical transport and transmission of porcine reproductive and respiratory syndrome virus under field conditions. Can J Vet Res. 2009 Apr;73(2):91-6. PubMed PMID: 19436589; PubMed Central PMCID: PMC2666325

*Pitkin A, Deen J, Dee S. Further assessment of fomites and personnel as vehicles for the mechanical transport and transmission of porcine reproductive and respiratory syndrome virus. Can J Vet Res. 2009 Oct;73(4):298-302. PubMed PMID: 20046632; PubMed Central PMCID: PMC2757711.

*Mulupuri P, Zimmerman JJ, Hermann J, Johnson CR, Cano JP, Yu W, Dee SA, Murtaugh MP. Antigen-specific B-cell responses to porcine reproductive and respiratory syndrome virus infection. J Virol. 2008 Jan;82(1):358-70. Epub 2007 Oct 17. PubMed PMID: 17942527; PubMed Central PMCID: PMC2224379.

*Cano JP, Murtaugh MP, Dee SA. Evaluation of the survival of porcine reproductive and respiratory syndrome virus in non-processed pig meat. Vet Rec. 2007 Jun 30;160(26):907-8. PubMed PMID: 17602107.

*Cano JP, Dee SA, Murtaugh MP, Pijoan C. Impact of a modified-live porcine reproductive and respiratory syndrome virus vaccine intervention on a population of pigs infected with a heterologous isolate. Vaccine. 2007 May 30;25(22):4382-91. Epub 2007 Apr 3. PubMed PMID: 17451850.

*Cano JP, Dee SA, Murtaugh MP, Trincado CA, Pijoan CB. Effect of vaccination with a modified-live porcine reproductive and respiratory syndrome virus vaccine on dynamics of homologous viral infection in pigs. Am J Vet Res. 2007 May;68(5):565-71. PubMed PMID: 17472459.

*Cho JG, Deen J, Dee SA. Influence of isolate pathogenicity on the aerosol transmission of Porcine reproductive and respiratory syndrome virus. Can J Vet Res. 2007 Jan;71(1):23-7. PubMed PMID: 17193878; PubMed Central PMCID: PMC1635995.

*Fano E, Pijoan C, Dee S. Infection dynamics of porcine reproductive and respiratory syndrome virus in a continuous-flow population of pigs also infected with Mycoplasma hyopneumoniae. Vet Rec. 2007 Oct 13;161(15):515-20. PubMed PMID: 17938409.

Mondaca-Fernández E, Morrison RB. Applying spatial analysis to a porcine reproductive and respiratory syndrome regional control programme. Vet Rec. 2007 Jul 28;161(4):137-8. PubMed PMID: 17660468.

Mondaca-Fernández E, Meyns T, Muñoz-Zanzi C, Trincado C, Morrison RB. Experimental quantification of the transmission of Porcine reproductive and respiratory syndrome virus. Can J Vet Res. 2007 Apr;71(2):157-60. PubMed PMID: 17479780; PubMed Central PMCID: PMC1829187.

*Cho JG, Dee SA, Deen J, Guedes A, Trincado C, Fano E, Jiang Y, Faaberg K, Collins JE, Murtaugh MP, Joo HS. Evaluation of the effects of animal age, concurrent bacterial infection, and pathogenicity of porcine reproductive and respiratory syndrome virus on virus concentration in pigs. Am J Vet Res. 2006 Mar;67(3):489-93. PubMed PMID: 16506914.

*Cho JG, Dee SA, Deen J, Trincado C, Fano E, Jiang Y, Faaberg K, Murtaugh MP, Guedes A, Collins JE, Joo HS. The impact of animal age, bacterial coinfection, and isolate pathogenicity on the shedding of porcine reproductive and respiratory syndrome virus in aerosols from experimentally infected pigs. Can J Vet Res. 2006 Oct;70(4):297-301. PubMed PMID: 17042383; PubMed Central PMCID: PMC1562537.

*Cho JG, Dee SA. Porcine reproductive and respiratory syndrome virus. Theriogenology. 2006 Aug;66(3):655-62. Epub 2006 May 24. Review. PubMed PMID: 16730057.

*Dee SA, Deen J, Pijoan CA. Evaluation of an industry-based sanitation protocol for full-size transport vehicles contaminated with porcine reproductive and respiratory syndrome virus. J Swine Health Prod. 2006; 14(6):307-311.

*Mondaca-Fernández E, Murtaugh MP, Morrison RB. Association between genetic sequence homology of Porcine reproductive and respiratory syndrome virus and geographic distance between pig sites. Can J Vet Res. 2006 Jul;70(3):237-9. PubMed PMID: 16850949; PubMed Central PMCID: PMC1477931.

*Reicks DL, Muñoz-Zanzi C, Mengeling W, Christopher-Hennings J, Lager K, Polson D, Dee S, Rossow K. Detection of porcine reproductive and respiratory syndrome virus in semen and serum of boars during the first six days after inoculation. J Swine Health Prod. 2006; 14(1):35-41.

*Trincado C, Dee S, Jacobson L, Otake S, Pijoan C. Evaluation of an all-glass impinger for the detection of porcine reproductive and respiratory syndrome virus in natural and artificial aerosols. Vet Rec. 2006 Feb 11;158(6):206-8. PubMed PMID: 16474057.

*Dee S, Deen J, Burns D, Douthit G, Pijoan C. An evaluation of disinfectants for the sanitation of porcine reproductive and respiratory syndrome virus-contaminated transport vehicles at cold temperatures. Can J Vet Res. 2005 Jan;69(1):64-70. PubMed PMID: 15745225; PubMed Central PMCID: PMC1142172.

*Dee S, Torremorell M, Thompson B, Deen J, Pijoan C. An evaluation of thermo-assisted drying and decontamination for the elimination of porcine reproductive and respiratory syndrome virus from contaminated livestock transport vehicles. Can J Vet Res. 2005 Jan;69(1):58-63. PubMed PMID: 15745224; PubMed Central PMCID: PMC1142171.

*Dee SA, Martinez BC, Clanton C. Survival and infectivity of porcine reproductive and respiratory syndrome virus in swine lagoon effluent. Vet Rec. 2005 Jan 8;156(2):56-7. PubMed PMID: 15675529.

*Fano E, Pijoan C, Dee S. Evaluation of the aerosol transmission of a mixed infection of Mycoplasma hyopneumoniae and porcine reproductive and respiratory syndrome virus. Vet Rec. 2005 Jul 23;157(4):105-8. PubMed PMID: 16040942.

*Fano E, Olea L, Pijoan C. Eradication of porcine reproductive and respiratory syndrome virus by serum inoculation of naïve gilts. Can J Vet Res. 2005 Jan;69(1):71-4. PubMed PMID: 15745226; PubMed Central PMCID: PMC1142173

Olin MR, Batista L, Xiao Z, Dee SA, Murtaugh MP, Pijoan CC, Molitor TW. Gammadelta lymphocyte response to porcine reproductive and respiratory syndrome virus. Viral Immunol. 2005;18(3):490-9. PubMed PMID: 16212527.

*Schurrer JA, Dee SA, Moon RD, Murtaugh MP, Finnegan CP, Deen J, Kleiboeker SB, Pijoan CB. Retention of ingested porcine reproductive and respiratory syndrome virus in houseflies. Am J Vet Res. 2005 Sep;66(9):1517-25. PubMed PMID: 16261824.

*Batista L, Dee SA, Rossow KD, Polson DD, Xiao Z, Olin M, Murtaugh MP, Molitor TW, Joo HS, Pijoan C. Detection of porcine reproductive and respiratory syndrome virus in pigs with low positive or negative ELISA s/p ratios. Vet Rec. 2004 Jan 3;154(1):25-6. PubMed PMID: 14725426.

*Batista L, Pijoan C, Dee S, Olin M, Molitor T, Joo HS, Xiao Z, Murtaugh M. Virological and immunological responses to porcine reproductive and respiratory syndrome virus in a large population of gilts. Can J Vet Res. 2004 Oct;68(4):267-73. PubMed PMID: 15581221; PubMed Central PMCID: PMC1111357.

*Dee S, Deen J, Pijoan C. Evaluation of 4 intervention strategies to prevent the mechanical transmission of porcine reproductive and respiratory syndrome virus. Can J Vet Res. 2004 Jan;68(1):19-26. PubMed PMID: 14979431; PubMed Central PMCID: PMC1142125.

*Dee S, Deen J, Burns D, Douthit G, Pijoan C. An assessment of sanitation protocols for commercial transport vehicles contaminated with porcine reproductive and respiratory syndrome virus. Can J Vet Res. 2004 Jul;68(3):208-14. PubMed PMID: 15352546; PubMed Central PMCID: PMC1142141.

*Dee SA, Deen J, Otake S, Pijoan C. An experimental model to evaluate the role of transport vehicles as a source of transmission of porcine reproductive and respiratory syndrome virus to susceptible pigs. Can J Vet Res. 2004 Apr;68(2):128-33. PubMed PMID: 15188957; PubMed Central PMCID: PMC1142156.

*Dee SA, Deen J, Jacobson L, Rossow KD, Mahlum C, Pijoan C. Laboratory model to evaluate the role of aerosols in the transport of porcine reproductive and respiratory syndrome virus. Vet Rec. 2005 Apr 16;156(16):501-4. PubMed PMID: 15833966.

*Dee SA. Elimination of porcine reproductive and respiratory syndrome virus from 30 farms by test and removal. J Swine Health Prod. 2004; 12(3):129-133.

*Dee SA, Schurrer JA, Moon RD, Fano E, Trincado C, Pijoan CA. Transmission of porcine reproductive and respiratory syndrome virus under field conditions during a putative increase in the fly population. J Swine Health Prod. 2004; 12(5):242-245.

*Otake S, Dee SA, Moon RD, Rossow KD, Trincado C, Pijoan C. Studies on the carriage and transmission of porcine reproductive and respiratory syndrome virus by individual houseflies (Musca domestica). Vet Rec. 2004 Jan 17;154(3):80-5. PubMed PMID: 14756503.

*Schurrer JA, Dee SA, Moon RD, Rossow KD, Mahlum C, Mondaca E, Otake S, Fano E, Collins JE, Pijoan C. Spatial dispersal of porcine reproductive and respiratory syndrome virus-contaminated flies after contact with experimentally infected pigs. Am J Vet Res. 2004 Sep;65(9):1284-92. PubMed PMID: 15478779.

*Trincado C, Dee S, Jacobson L, Otake S, Rossow K, Pijoan C. Attempts to transmit porcine reproductive and respiratory syndrome virus by aerosols under controlled field conditions. Vet Rec. 2004 Mar 6;154(10):294-7. PubMed PMID: 15053136.

*Trincado C, Dee S, Rossow K, Halvorson D, Pijoan C. Evaluation of the role of mallard ducks as vectors of porcine reproductive and respiratory syndrome virus. Vet Rec. 2004 Feb 21;154(8):233-7. PubMed PMID: 15005448.

*Xiao Z, Batista L, Dee S, Halbur P, Murtaugh MP. The level of virus-specific T-cell and macrophage recruitment in porcine reproductive and respiratory syndrome virus infection in pigs is independent of virus load. J Virol. 2004 Jun;78(11):5923-33. PubMed PMID: 15140990; PubMed Central PMCID: PMC415812.

*Dee S, Deen J, Rossow K, Weise C, Eliason R, Otake S, Joo HS, Pijoan C. Mechanical transmission of porcine reproductive and respiratory syndrome virus throughout a coordinated sequence of events during warm weather. Can J Vet Res. 2003 Jan;67(1):12-9. PubMed PMID: 12528824; PubMed Central PMCID: PMC227022.

*Otake S, Dee SA, Moon RD, Rossow KD, Trincado C, Pijoan C. Evaluation of mosquitoes, Aedes vexans, as biological vectors of porcine reproductive and respiratory syndrome virus. Can J Vet Res. 2003 Oct;67(4):265-70. PubMed PMID: 14620862; PubMed Central PMCID: PMC280710.

*Otake S, Dee SA, Moon RD, Rossow KD, Trincado C, Farnham M, Pijoan C. Survival of porcine reproductive and respiratory syndrome virus in houseflies. Can J Vet Res. 2003 Jul;67(3):198-203. PubMed PMID: 12889726; PubMed Central PMCID: PMC227053.

*Batista L, Dee SA, Rossow KD, Deen J, Pijoan C. Assessing the duration of persistence and shedding of porcine reproductive and respiratory syndrome virus in a large population of breeding-age gilts. Can J Vet Res. 2002 Jul;66(3):196-200. PubMed PMID: 12146892; PubMed Central PMCID: PMC227004.

*Cuartero L, Dee S, Deen J, Ruiz A, Pijoan C. Association between clinical signs and high serum titers of porcine reproductive and respiratory syndrome virus (PRRSV) in nursery pigs under field conditions. J Swine Health Prod. 2002; 10(3):118-121.

*Dee S, Deen J, Rossow K, Wiese C, Otake S, Joo HS, Pijoan C. Mechanical transmission of porcine reproductive and respiratory syndrome virus throughout a coordinated sequence of events during cold weather. Can J Vet Res. 2002 Oct;66(4):232-9. PubMed PMID: 12418778; PubMed Central PMCID: PMC227010.

*Otake S, Dee SA, Rossow KD, Moon RD, Pijoan C. Mechanical transmission of porcine reproductive and respiratory syndrome virus by mosquitoes, Aedes vexans (Meigen). Can J Vet Res. 2002 Jul;66(3):191-5. Erratum in: Can J Vet Res 2002 Oct;66(4):294. PubMed PMID: 12146891; PubMed Central PMCID: PMC227003.

*Otake S, Dee SA, Jacobson L, Torremorell M, Pijoan C. Evaluation of aerosol transmission of porcine reproductive and respiratory syndrome virus under controlled field conditions. Vet Rec. 2002 Jun 29;150(26):804-8. PubMed PMID: 12120923.

*Otake S, Dee SA, Rossow KD, Joo HS, Deen J, Molitor TW, Pijoan C. Transmission of porcine reproductive and respiratory syndrome virus by needles. Vet Rec. 2002 Jan 26;150(4):114-5. PubMed PMID: 11838995.


Air filtration
*Dee S, Spronk G, Reicks D, Ruen P, Deen J. Further assessment of air filtration for preventing PRRSV infection in large breeding pig herds. Vet Rec. 2010 Dec 18;167(25):976-7. PubMed PMID: 21262714.

*Otake S, Dee S, Corzo C, Oliveira S, Deen J. Long-distance airborne transport of infectious PRRSV and Mycoplasma hyopneumoniae from a swine population infected with multiple viral variants. Vet Microbiol. 2010 Oct 26;145(3-4):198-208. Epub 2010 Mar 31. PubMed PMID: 20418029.

*Spronk G, Otake S, Dee S. Prevention of PRRSV infection in large breeding herds using air filtration. Vet Rec. 2010 Jun 12;166(24):758-9. PubMed PMID: 20543168.
*Dee SA, Batista L, Deen J, Pijoan C. Evaluation of systems for reducing the transmission of porcine reproductive and respiratory syndrome virus by aerosol. Can J Vet Res. 2006 Jan;70(1):28-33. PubMed PMID: 16548329; PubMed Central PMCID: PMC1325091.

*Dee SA, Deen J, Cano JP, Batista L, Pijoan C. Further evaluation of alternative air-filtration systems for reducing the transmission of Porcine reproductive and respiratory syndrome virus by aerosol. Can J Vet Res. 2006 Jul;70(3):168-75. PubMed PMID: 16850938; PubMed Central PMCID: PMC1477932

*Dee S, Batista L, Deen J, Pijoan C. Evaluation of an air-filtration system for preventing aerosol transmission of Porcine reproductive and respiratory syndrome virus. Can J Vet Res. 2005 Oct;69(4):293-8. PubMed PMID: 16479728; PubMed Central PMCID: PMC1250242.
 

 

 

 

 


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