Association of airborne concentration of virulent Rhodococcus equi with location (stall versus paddock) and month (January through June) on 30 horse breeding farms in central Kentucky

American Journal of Veterinary Research

Volumn 73, Issue 10, 2012, Pages 1603-1609

  Cohen, Noah D ^a   Kuskie, Kyle R ^a,e   Smith, Jacqueline L ^b   Slovis, Nathan M ^c   Brown, Stuart E ^c   Stepusin, Randolph S ^b   Keith Chaffin, M ^a   Takai, Shinji ^d   Carter, Craig N ^b  

^a TEXAS A AND M UNIVERSITY   (United States)

^b UNIVERSITY OF KENTUCKY   (United States)

^c HAGYARD EQUINE MEDICAL INSTITUTE   (United States)

^d KITASATO UNIVERSITY   (Japan)

^e Tarrant County Public Health Department   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AIR ANALYSIS; AIRBORNE FUNGUS; ANIMAL EXPERIMENT; ANIMAL HUSBANDRY; ARTICLE; BREEDING; CONCENTRATION (PARAMETERS); CONTROLLED STUDY; ENVIRONMENTAL FACTOR; FEMALE; FUNGAL VIRULENCE; HORSE; IMMUNOBLOTTING; MALE; NONHUMAN; RHODOCOCCUS EQUI; UNITED STATES;

ACTINOMYCETALES INFECTIONS; AIR MICROBIOLOGY; ANIMAL HUSBANDRY; ANIMALS; ANIMALS, NEWBORN; FEMALE; HORSE DISEASES; HORSES; HOUSING, ANIMAL; IMMUNOBLOTTING; INCIDENCE; KENTUCKY; PNEUMONIA, BACTERIAL; REPRODUCTION; RHODOCOCCUS EQUI; SEASONS; VIRULENCE;

EQUIDAE; RHODOCOCCUS EQUI;

EID: 84867065814     PISSN: 00029645     EISSN: None     Source Type: Journal    
DOI: 10.2460/ajvr.73.10.1603     Document Type: Article

References (21)

1. Prescott JF. Epidemiology of Rhodococcus equi infection in horses. Vet Microbiol 1987;14:211-214.
2. Takai S. Epidemiology of Rhodococcus equi infections: a review. Vet Microbiol 1997;56:167-176.
3. Cohen ND. Epidemiology of Rhodococcus equi foal pneumonia. In: Robinson NE, Sprayberry KS, eds. Current therapy in equine medicine. 6th ed. St Louis: Saunders Elsevier, 2009;129-132.
4. Muscatello G, Browning GF. Identification and differentiation of avirulent and virulent Rhodococcus equi using selective media and colony blotting DNA hybridization to determine their concentrations in the environment. Vet Microbiol 2004;100:121-127.
5. Muscatello G, Anderson GA, Gilkerson JR, et al. Associations between the ecology of virulent Rhodococcus equi and the epidemiology of R equi pneumonia on Australian Thoroughbred farms. Appl Environ Microbiol 2006;2:6152-6160.
6. Muscatello G, Gerbaud S, Kennedy C, et al. Comparison of concentrations of Rhodococcus equi and virulent R equi in air of stables and paddocks on horse breeding farms in a temperate climate. Equine Vet J 2006;38:263-265.
7. Muscatello G, Gilkerson JR, Browning GF. Detection of virulent Rhodococcus equi in exhaled air samples from naturally infected foals. J Clin Microbiol 2009;47:734-737.
8. Kuskie KR, Smith JL, Wang N, et al. Effects of location for collection of air samples on a farm and time of day of sample collection on airborne concentrations of virulent Rhodococcus equi at two horse breeding farms. Am J Vet Res 2011;72:73-79.
9. Kuskie K, Smith JL, Sinha S, et al. Associations between the exposure to airborne virulent Rhodococcus equi and the incidence of R equi pneumonia among individual foals. J Equine Vet Sci 2011;31:463-469.
10. Horowitz ML, Cohen ND, Takai S, et al. Application of Sartwell's model (logarithmic-normal distribution of incubation periods) to age at onset and age at death of foals with Rhodococcus equi pneumonia as evidence of perinatal infection. J Vet Intern Med 2001;15:171-175.
11. Chaffin MK, Cohen ND, Martens RJ. Chemoprophylactic effects of azithromycin against Rhodococcus equi pneumonia among foals at endemic equine breeding farms. J Am Vet Med Assoc 2008;232:1035-1047.
12. Woolcock JB, Farmer AM, Mutimer MD. Selective medium for Corynebacterium equi isolation. J Clin Microbiol 1979;9:640-642.
13. Grimm MB, Cohen ND, Slovis NM, et al. Evaluation of fecal samples from mares as a source of Rhodococcus equi for their foals by use of quantitative bacteriologic culture and colony immunoblot analyses. Am J Vet Res 2007;68:63-71.
14. Takai S, Koike K, Ohbushi S, et al. Identification of 15-to 17-kilodalton antigens associated with virulent Rhodococcus equi. J Clin Microbiol 1991;29:439-443.
15. Fang Z, Ouyang Z, Zheng H, et al. Culturable airborne bacteria in outdoor environments in Beijing, China. Microb Ecol 2007;54:487-496.
16. Robinson RC. Epidemiological and bacteriological studies of Corynebacterium equi isolates from Californian farms. J Reprod Fertil Suppl 1982;32:477-480.
17. Laird NM, Ware JH. Random effects models for longitudinal data. Biometrics 1982;38:963-974.
18. Sidak Z. Rectangular confidence regions for the means of multivariate normal distributions. J Am Stat Assoc 1967;62:626-633.
19. Chaffin MK, Cohen ND, Martens RJ. Evaluation of equine breeding farm characteristics as risk factors for development of Rhodococcus equi pneumonia in foals. J Am Vet Med Assoc 2003;222:467-475.
20. Barber JA, Crowell-Davis SL. Maternal behavior of Belgian (Equus caballus) mares. Appl Animal Behav Sci 1994;41:161-189.
21. Crowell-Davis SL. Daytime rest behavior of the Welsh pony (Equus caballus) mare and foal. Appl Animal Behav Sci 1994;40:197-210.