Salmonella in Calves

Mohler, Virginia L.; Izzo, MM; House, John K.

doi:10.1016/j.cvfa.2008.10.009

Cited by 60 publications

(97 citation statements)

References 57 publications

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“…23 Salmonella ser. 3,32 Extra-label use of antimicrobials can be a difficult issue for the prescribing veterinarian, because of the limited availability of pharmacokinetic data that could be used to assign an appropriate withholding period. 24 20 None of these isolates was identified in the current study, but there were two PTs (PT RDNC (reaction does not conform) and PT 60) that showed a similar resistance profile.…”

Section: Discussionmentioning

confidence: 99%

Antimicrobial susceptibility of Salmonella isolates recovered from calves with diarrhoea in Australia

Izzo

Mohler

House

2011

Australian Veterinary Journal

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OBJECTIVE To identify the common serotypes and antimicrobial resistance patterns of Salmonella spp. associated with diarrhoea in Australian dairy calves under the age of 6 weeks. DESIGN Cross-sectional study. METHODS Faecal samples were collected from outbreaks of diarrhoea in dairy and dairy beef calves less than 6 weeks old. Samples were screened for Salmonella using standard enrichment culture techniques. The antimicrobial susceptibility to 12 commonly used veterinary and human antimicrobials was assessed using the Kirby-Bauer disk diffusion method and the susceptibility profiles of dairy and dairy beef properties were compared using Fisher's exact test. RESULTS Salmonella ser. Dublin, S. ser. Typhimurium and S. ser. Bovismorbificans were the three most common salmonella serotypes isolated. The majority of properties had one serotype. Most of the Salmonella isolates were not resistant to any of the antimicrobials tested. No resistance was seen to amikacin and nalidixic acid, and only one isolate was resistant to ceftiofur or amoxicillin-clavulanic acid. The most common antimicrobial resistance was to streptomycin, ampicillin or combination sulfonamides. Multi-drug resistance was detected in S. ser. Anatum, S. ser. Bovismorbificans, S. ser. Muenster, S. ser. Newport and S. ser. Typhimurium. Isolates from dairy beef properties were more likely to be resistant to ampicillin, kanamycin, neomycin, sulfamethoxazole/trimethoprim and tetracycline (P < 0.05) and were more likely to exhibit multi-drug resistance. CONCLUSION The prevalence of antimicrobial resistance in Salmonella isolates from dairy calves in Australia is low compared with that reported overseas. From a human health perspective, resistance to antimicrobials used in the treatment of human salmonellosis was infrequent.

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Section: Discussionmentioning

confidence: 99%

Antimicrobial susceptibility of Salmonella isolates recovered from calves with diarrhoea in Australia

Izzo

Mohler

House

2011

Australian Veterinary Journal

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“…O sorovar Thyphimurium é frequentemente associado a enterites que afetam bezerros jovens, causando diarreia aguda grave. O sorovar Dublin é mais relacionado a infecções sistêmicas em bezerros, geralmente não associadas à diarreia e, ocasionalmente, causa aborto em vacas prenhes (Anderson & Blanchard 1989, Mohler et al 2009, Carrique-Mas et al 2010.…”

Section: Introductionunclassified

“…A principal via de transmissão é a fecal-oral, porém já foram relatadas infecções através das mucosas dos tratos respiratório superior e geniturinário, conjuntiva ocular, por via transplacentária e umbilical (Mohler et al 2009).…”

Section: Introductionunclassified

Surto de salmonelose pelo sorovar Dublin em bezerros no Maranhão

et al. 2013

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Pesq. Vet. Bras. 33(8):983-988, agosto 2013 983 RESUMO.-Um surto de salmonelose em bezerros causado pela Salmonella enterica subsp. enterica sorovar Dublin é relatado em uma fazenda no município de Timon, Maranhão. De um total de 62 bezerros, 22 (35,5%) adoeceram e destes nove (40,9%) morreram. Os sinais clínicos incluíram febre, depressão, anorexia e, em alguns casos, sinais respiratórios, neurológicos, entéricos ou artrites, com curso clínico hiperagudo ou subagudo. As principais lesões macroscópicas foram hepatomegalia com áreas pálidas multifocais a coalescentes, esplenomegalia e líquido nas cavidades torácica e abdominal. Histologicamente foram observados granulomas paratifoides no fígado, rim e baço, além de trombos e agregados bacterianos em vasos sanguíneos de diversos órgãos. O surto foi controlado com a adoção de antibioticoterapia adequada aliada a correção de algumas medidas sanitárias na propriedade.

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“…The implementation of broad prophylactic strategies that are efficacious for all salmonellae may be required in order to overcome the diversity of Salmonella serovars present on farms, and the potential for different serovars to possess different virulence factors [58]. Early treatment is essential for septicemic salmonellosis but there is controversy regarding the use of antimicrobial agent for intestinal salmonellosis.…”

Section: Treatmentmentioning

confidence: 99%

A Review on the Public Health Importance of Bovine Salmonellosis

Kemal¹

2014

J Veterinar Sci Technol

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Salmonella in Calves

Cited by 60 publications

References 57 publications

Antimicrobial susceptibility of Salmonella isolates recovered from calves with diarrhoea in Australia

Antimicrobial susceptibility of Salmonella isolates recovered from calves with diarrhoea in Australia

Surto de salmonelose pelo sorovar Dublin em bezerros no Maranhão

A Review on the Public Health Importance of Bovine Salmonellosis

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