Evaluation of the effects of animal age, concurrent bacterial infection, and pathogenicity of porcine reproductive and respiratory syndrome virus on virus concentration in pigs

American Journal of Veterinary Research

Volumn 67, Issue 3, 2006, Pages 489-493

  Cho, Jenny G ^a   Dee, Scott A ^a   Deen, John ^a   Guedes, Alonso ^a   Trincado, Carlos ^a   Fano, Eduardo ^a   Jiang, Ying ^a   Faaberg, Kay ^a   Collins, James E ^a   Murtaugh, Michael P ^a   Soo Joo, Han ^a  

^a UNIVERSITY OF MINNESOTA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

VIRUS RNA;

AGE; ANALYSIS OF VARIANCE; ANIMAL EXPERIMENT; ANIMAL MODEL; ANIMAL TISSUE; ANOREXIA; ARTERIVIRUS; ARTICLE; BLOOD SMEAR; CLINICAL FEATURE; COUGHING; DISEASE SEVERITY; DYSPNEA; ENZYME LINKED IMMUNOSORBENT ASSAY; FEVER; INOCULATION; KRUSKAL WALLIS TEST; LUNG; LYMPH NODE; LYMPHOID TISSUE; MYCOPLASMA HYOPNEUMONIAE; MYCOPLASMAL PNEUMONIA OF SWINE; NONHUMAN; NOSE SECRETION; NOSE SMEAR; QUANTITATIVE ANALYSIS; REAL TIME POLYMERASE CHAIN REACTION; SUPERINFECTION; SWINE DISEASE; TONSIL; TRACHEA; VIRUS INFECTION; VIRUS ISOLATION; VIRUS LOAD; VIRUS VIRULENCE; AGING; ANIMAL; ANIMAL DISEASE; BLOOD; MICROBIOLOGY; PATHOGENICITY; PHYSIOLOGY; SWINE; VIROLOGY; VIRULENCE;

ANIMALIA; BACTERIA (MICROORGANISMS); MYCOPLASMA HYOPNEUMONIAE; PORCINE RESPIRATORY AND REPRODUCTIVE SYNDROME VIRUS;

AGING; ANIMALS; PNEUMONIA OF SWINE, MYCOPLASMAL; PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME; PORCINE RESPIRATORY AND REPRODUCTIVE SYNDROME VIRUS; SWINE; VIRAL LOAD; VIRULENCE;

EID: 33646369679     PISSN: 00029645     EISSN: None     Source Type: Journal    
DOI: 10.2460/ajvr.67.3.489     Document Type: Article

References (17)

1. Cavanagh D. Nidovirales: a new order comprising Coronaviridae and Arteriviridae. Arch Virol 1997;629-633.
2. Dee SA, Joo HS, Pelson DD, et al. Evaluation of the effects of nursery depopulation on the profitability of 34 pig farms. Vet Rec 1997;40:498-500.
3. Chang CC, Yoon KJ, Zimmerman JJ, et al. Evolution of porcine reproductive and respiratory syndrome virus during sequential passage in pigs. J Virol 2002:76:4750-4763.
4. Mengeling WL, Vorwald AC, Lager KM, et al. Comparison among strains of porcine reproductive and respiratory syndrome virus for their ability to cause reproductive failure. Am J Vet Res 1996;57:834-839.
5. Murtaugh MP, Yuan S, Faaberg KS. Appearance of novel PRRSV isolates by recombination in the natural environment. Adv Exp Med Biol 2001;494:31-36.
6. Halbur PG, Paul PS, Frey ML, eL al. Comparison of the pathogenicity of two U.S. porcine reproductive and respiratory syndrome virus isolates with that of the Lelystad virus. Vet Pathol 1995;32:648-660.
7. Halbur PG, Paul PS, Meng XJ, et al. Comparative pathogenicity of nine U.S. Porcine reproductive and respiratory syndrome virus (PRRSV) isolates in a five-week-old cesarean-derived, colostrums-deprived pig model. J Vet Diagn Invest 1996;8:11-20.
8. Johnson W, Roof M, Vaughn E, et al. Pathogenic and Immoral immune responses to porcine reproductive and respiratory syndrome virus (PRRSV) are related to viral lad in acute infection. Vet Immunol Immunopathol 2004;102:233-247.
9. Xiao Z, Batista L, Dee S, et al. 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;78:5923-5933.
10. Brockmeier SL, Palmer MV, Bolin SR. Effects of intranasal inoculation of porcine reproductive and respiratory syndrome virus, Bordetella bronchiseptica, or a combination of both organisms in pigs. Am J Vet Res 2000;61:892-899.
11. Thacker EL, Halbur PG, Ross RF, et al. Mycoplasma hyopneumoniae potentiation of porcine reproductive and respiratory syndrome virus-induced pneumoniae. J Clin Microbiol 1999;37:620-627.
12. van der Linden IF, Voermans JJ, van der Linde-Bril EM, et al. Virological kinetics and immunological responses to a porcine reproductive and respiratory syndrome virus infection of pigs at different ages. Vaccine 2003;21:1952-1957.
13. Calsamiglia M, Pijoan C, Trigo A. Application of a nested polymerase chain reaction assay to detect Mycoplasma hyopneumoniae from nasal swabs. J Vet Diagn Invest 1999;11:246-251.
14. Bierk MD, Dee SA, Rossow KD, et al. Transmission of PRRS virus from persistently infected sows to contact controls. Can J Vet Res 2001;65:261-266.
15. Ko JC, Williams BL, Smith VL, et al. Comparison of Telazol, Telazol-ketamine, Telazol-xylazine, and Telazol-ketamine-xylazine as chemical restraint and anesthetic induction combination in swine. Lab Anim Sci 1993;43:476-480.
16. Molitor TW, Tune KA, Shin J, et al. Application of TaqMan™ PCR in the detection of porcine reproductive and respiratory syndrome virus, in Proceedings. Allen D Leman Swine Conf 1997;173-175.
17. Mengeling WL, Lager KM, Vorwald AC. Clinical consequences of exposing pregnant gilts to strains of porcine reproductive and respiratory syndrome (PRRS) virus isolated from field cases of "atypical" PRRS. Am J Vet Res 1998;59:1540-1544.