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Savage E, Chothe S, Lintner V, Pierre T, Matthews T, Kariyawasam S, Miller D, Tewari D, Jayarao B. Evaluation of Three Bacterial Identification Systems for Species Identification of Bacteria Isolated from Bovine Mastitis and Bulk Tank Milk Samples. Foodborne Pathog Dis 2017; 14:177-187. [DOI: 10.1089/fpd.2016.2222] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Affiliation(s)
- Emily Savage
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania
| | - Shubhada Chothe
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania
| | - Valerie Lintner
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania
| | - Traci Pierre
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania
| | - Tammy Matthews
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania
| | - Subhashinie Kariyawasam
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania
| | - Dawn Miller
- Pennsylvania Veterinary Laboratory, Pennsylvania Department of Agriculture, Harrisburg, Pennsylvania
| | - Deepanker Tewari
- Pennsylvania Veterinary Laboratory, Pennsylvania Department of Agriculture, Harrisburg, Pennsylvania
| | - Bhushan Jayarao
- Penn State Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania
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Saumya D, Wijetunge S, Dunn P, Wallner-Pendleton E, Lintner V, Matthews T, Pierre T, Kariyawasam S. Acute septicemia caused by Streptococcus gallolyticus subsp. pasteurianus in turkey poults. Avian Dis 2014; 58:318-22. [PMID: 25055641 DOI: 10.1637/10617-071813-case.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Streptococcus gallolyticus, previously known as Streptococcus bovis biotypes I and II/2, is a well-known cause of sepsis and meningitis in humans and birds. The present case report describes an outbreak of fatal septicemia associated with S. gallolyticus subsp. pasteurianus (S. bovis biotype II/2) in 11 turkey flocks in Pennsylvania between 2010 and 2013. Affected poults were 2-3 wk of age. Major clinical observation was sudden increase in mortality among turkey poults without any premonitory clinical signs. Postmortem examination findings revealed acute septicemia with lesions such as fibrinous pericarditis, meningitis, splenic multifocal fibrinoid necrosis, hepatitis, osteochondritis, myositis, and airsacculitis. Gram-positive cocci were isolated from several organs by routine bacterial culture. Biotyping identified bacteria as streptococci, whereas 16S ribosomal RNA gene sequencing identified them as S. gallolyticus subsp. pasteurianus. Antibiotic susceptibility profiles revealed that all the strains isolated were sensitive to penicillin and erythromycin with different sensitivity profiles for other antibacterial agents tested. The present study reports the first confirmed case of acute septicemia in turkey poults caused by S. gallolyticus subsp. pasteurianus.
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Tell LA, Brooks JW, Lintner V, Matthews T, Kariyawasam S. Antimicrobial susceptibility of Arcanobacterium pyogenes isolated from the lungs of white-tailed deer (Odocoileus virginianus) with pneumonia. J Vet Diagn Invest 2011; 23:1009-13. [DOI: 10.1177/1040638711416618] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In vitro susceptibilities of 29 strains of Arcanobacterium pyogenes isolated from lung lesions of white-tailed deer ( Odocoileus virginianus) with pneumonia were determined using the broth microdilution method to ascertain efficacious treatment options for pneumonic white-tailed deer. All 29 A. pyogenes strains tested were susceptible to ceftiofur, spectinomycin, tiamulin, and trimethoprim–sulfamethoxazole but were resistant to both danofloxacin and sulfadimethoxine. Likewise, all 29 isolates were either fully susceptible or intermediately susceptible to gentamicin (25 susceptible; 4 intermediate) and tulathromycin (25 susceptible; 4 intermediate). At least one isolate of A. pyogenes tested was resistant to ampicillin, chlortetracycline, clindamycin, enrofloxacin, florfenicol, oxytetracycline, penicillin, and tilmicosin suggesting their ineffectiveness in treating A. pyogenes–associated lung infections in white-tailed deer. Minimum inhibitory concentration (MIC) data for tylosin and neomycin could not be interpreted due to unavailability of Clinical and Laboratory Standards Institute (CLSI)-approved breakpoints for these 2 agents. In summary, based on MIC values, ceftiofur, spectinomycin, tiamulin, and trimethoprim–sulfamethoxazole are more efficacious than other antimicrobial agents for treating A. pyogenes–related pneumonia in white-tailed deer. However, ceftiofur may be preferred over the other 4 drugs as it is being widely used to treat respiratory disease in cattle and other animal species, as well as is available for single dose parenteral administration.
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Affiliation(s)
- Lisa A. Tell
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California–Davis, Davis, CA (Tell)
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA (Brooks, Lintner, Matthews, Kariyawasam)
| | - Jason W. Brooks
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California–Davis, Davis, CA (Tell)
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA (Brooks, Lintner, Matthews, Kariyawasam)
| | - Valerie Lintner
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California–Davis, Davis, CA (Tell)
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA (Brooks, Lintner, Matthews, Kariyawasam)
| | - Tammy Matthews
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California–Davis, Davis, CA (Tell)
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA (Brooks, Lintner, Matthews, Kariyawasam)
| | - Subhashinie Kariyawasam
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California–Davis, Davis, CA (Tell)
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA (Brooks, Lintner, Matthews, Kariyawasam)
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Wilson TM, Chang K, Gebhart CJ, Kurtz HJ, Drake TR, Lintner V. Porcine proliferative enteritis: serological, microbiological and pathological studies from three field epizootics. Can J Vet Res 1986; 50:217-20. [PMID: 3756677 PMCID: PMC1255193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Three outbreaks of porcine proliferative enteritis were evaluated clinically, pathologically, microbiologically and serologically. The disease was characterized by a chronic intermittent diarrhea. Pathological lesions included a thickened, turbid ileum with the microscopic appearance of proliferating ileal crypt epithelial cells. Comma shaped intracytoplasmic organisms were observed in the apical portions of the proliferating crypt epithelial cells with a Warthin-Starry silver stain. Microbiologically, both Campylobacter sputorum subspecies mucosalis and Campylobacter hyointestinalis, were cultured from ileal specimens of seven pigs with lesions of porcine proliferative enteritis. Microagglutination antibody titers were determined on sera from 12 of 14 pigs with porcine proliferative enteritis and on sera from 91 clinically normal swine. Pigs with porcine proliferative enteritis had a low antibody titer to subspecies mucosalis that ranged from 1-3 with a mean of 2.17. A varied C. hyointestinalis titer from 3-7 with mean of 4.83 was determined. Titers to either subspecies mucosalis and C. hyointestinalis were higher in non-porcine proliferative enteritis pigs. The results indicate that the presence of a positive titer to either C. hyointestinalis or subspecies mucosalis in swine is not indicative of clinical disease. The isolation of C. hyointestinalis from diseased ileal specimens (porcine proliferative enteritis) confirms previous reports implicating this agent in the disease.
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