Susceptibilidade antimicrobiana de Campylobacter fetus subsp. venerealis isolado de bovinos

Vargas, Agueda Castagna de; Costa, Mateus Matiuzzi da; Groff, Ana Cláudia Mello; Viana, Luciane Ribeiro; Krewer, Cristina da Costa; Spricigo, Denis A.; Kirinus, Jackeline Karsten

doi:10.1590/s0100-736x2005000100001

Cited by 3 publications

(8 citation statements)

References 12 publications

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“…The tested C. fetus strains showed cefoperazone-tetracycline as the most common multidrug-resistance profile, taking into account that this species is naturally resistant to nalidixic acid. The present results were different from those observed by Miranda and Lage (2007) and Vargas et al (2005) for Brazilian C. fetus isolates, which exhibited a low prevalence of multidrug resistant strains, with absence or low observation of resistance to tetracycline. These differences could be explained, considering that the multiple drug resistance observed was higher in C. fetus isolates from feces (57.14%) than from genital tract (28.57%), and that all C. fetus strains tested by Vargas et al were from genital origin.…”

Section: Discussioncontrasting

confidence: 99%

“…C. jejuni and C. coli isolated from animals, mainly poultry, were broadly reported to be resistant to ampicillin (GALLAY et al, 2007;LEHTOPOLKU et al, 2010;ADZITEY et al, 2012;CHOKBOONMONGKOL et al, 2013;GIACOMELLI et al, 2014). Nevertheless, resistance to ampicillin among C. fetus strains has not been described, even for C. fetus isolated in the same region as the strains tested in the present study (Minas Gerais State, Brazil) (TREMBLAY et al, 2003;VARGAS et al, 2005;GALLAY et al, 2007;MIRANDA;LAGE, 2007). These differences are probably due to differences in the methodology used or in the origin of the strains, since a low-level agreement was observed for ampicillin in the comparison of agar dilution and agar disk diffusion methods (LUANGTONGKUM et al, 2007).…”

Section: Discussionmentioning

confidence: 59%

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Antimicrobial susceptibility profile of Campylobacter spp. isolated from different animal species in Minas Gerais

Brito

Dorneles

Alves

et al. 2017

Braz. J. Vet. Res. Anim. Sci.

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Susceptibility pattern of 45 Campylobacter spp.isolates -16 C. jejuni, eight C. coli, and 21 C. fetus isolated from different animal species in Brazil -to twelve antimicrobial agents was determined. All Campylobacter spp. isolates were susceptible to gentamicin, sulfadiazine, and sulfamethoxazole. C. jejuni and C. coli were also sensitive to chloramphenicol, whereas all C. fetus strains were susceptible to kanamycin. Cefoperazone showed the highest percentage of resistance among C. jejuni (68.75%), followed by nalidixic acid (31.25%), ampicillin (37.50%), tetracycline (37.50%), erythromycin (12.50%), and kanamycin (6.25%). Likewise, cefoperazone exhibited the highest percentage of resistance among C. coli (75.00%), followed by nalidixic acid (50.00%), tetracycline (50.00%), erythromycin (37.50%), ampicillin (12.50%), and kanamycin (12.50%). Among C. fetus strains, nalidixic acid showed the highest resistance rate (85.71%), followed by cefoperazone (71.43%), tetracycline (42.86%), ampicillin (19.05%), chloramphenicol (9.52%), and erythromycin (4.76%). Therefore, it was found that the majority of Campylobacter spp. isolated from animals was sensitive to gentamycin, chloramphenicol, kanamacyn, and sulfonamides; however, a high proportion of the strains showed reduced susceptibility to nalidixic acid, ampicillin, cefoperazone, and tetracycline. Moreover, C. coli and C. fetus isolates showed a high percentage of multidrug resistant strains.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 59%

Antimicrobial susceptibility profile of Campylobacter spp. isolated from different animal species in Minas Gerais

Brito

Dorneles

Alves

et al. 2017

Braz. J. Vet. Res. Anim. Sci.

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“…Devido aos longos intervalos entre partos e a diminuição do número de bezerros produzidos, ocasiona baixa eficiência reprodutiva, o que leva a perdas econômicas significativas e afeta a produtividade da pecuária leiteira e de corte (GROFF, VARGAS, 2005).…”

Section: Definiçãounclassified

“…Outros sinais associados com a infecção incluem endometrite, salpingite, repetição de cio, ciclos longos, prolongado intervalo entre partos, com os rebanhos apresentando baixa produtividade (GROFF, 2005).…”

Section: Sinais Clínicosunclassified

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Principais causas bacterianas de abortamento em bovinos

Paula¹,

Semer²,

Cruz³

et al. 2015

Pubvet

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PAULA, E.M.N. et al. Principais causas bacterianas de abortamento em bovinos. PUBVET, Londrina, V. 8, N. 7, Ed. 256, Art. 1699, Abril, 2014 PUBVET, Publicações em Medicina Veterinária e Zootecnia. Principais causas bacterianas de abortamento em bovinos ResumoAbortamento refere-se à expulsão de um feto vivo ou morto do útero entre 42 dias até aproximadamente 280 dias de gestação, quando este é incapaz de exercer uma vida independente em um ambiente extra-uterino. Somente 30% a 40% dos fetos bovinos abortados apresentam diagnóstico etiológico definido em virtude das múltiplas causas envolvidas. A determinação exata da incidência de abortamentos nos rebanhos é muito importante, pois índices de 1% a 2% são considerados normais para bovinos; de 3% representam um sinal de alerta e maiores que 3% caracterizam um problema ambiental ou PAULA, E.M.N. et al. Principais causas bacterianas de abortamento em bovinos. PUBVET, Londrina, V. 8, N. 7, Ed. 256, Art. 1699, Abril, 2014 infeccioso que acomete o rebanho. Dentre as diversas causa, destacam-se com suas devidas casuísticas, as bacterianas, sendo as principais brucelose, leptospirose e campilobacteriose. Palavras-chave: brucelose, leptospirose, campilobacteriose Main bacterial causes abortion in cattle AbstractAbortion refers to the expulsion of a fetus dead or alive of the uterus between 42 days until approximately 280 days of gestation, when the latter is unable to carry out an independent life in an extra-uterine environment. Only 30% to 40% of fetuses aborted bovine animals present etiological diagnosis defined in virtue of multiple causes involved. The exact determination of the incidence of abortion in livestock is very important because rates of 1% to 2% is considered normal for cattle; of 3% represent a warning sign and greater than 3% feature a infectious or environmental problem that affects the herd. Among the various causes, stand out with their due, the casuistic bacterial, being the main brucellosis, leptospirosis and campylobacteriosis.Keywords: brucellosis, leptospirosis, campylobacteriosis. INTRODUÇÃOO sucesso no diagnóstico de um abortamento depende de alguns procedimentos que devem ser realizados criteriosamente. Pois a expulsão do feto pode ocorrer algum tempo depois da morte fetal, resultando em autólise, dificultando a identificação e isolamento do agente etiológico (ANTONIASSI et al., 2007). Torna-se, desta forma muito importante obter-se uma história adequada, que deve incluir questões sobre o animal que abortou (como idade e histórico reprodutivo), e questões acerca do rebanho, como dieta, introdução de novos animais, vacinações, índices de prenhez e historia previa de abortamentos ou repetição do cio (RIET-CORREA et al., 2001).PAULA, E.M.N. et al. Principais causas bacterianas de abortamento em bovinos. PUBVET, Londrina, V. 8, N. 7, Ed. 256, Art. 1699, Abril, 2014 A determinação exata da incidência de abortamentos nos rebanhos é muito importante, pois índices de 1% a 2% são considerados normais para BRUCELOSE DEFINIÇÃOA brucelose é uma doença in...

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Genomic and Phenotypic Characterization of Campylobacter fetus subsp. venerealis Strains

et al. 2021

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The pathogenesis mechanisms of Campylobacter fetus subsp. venerealis (Cfv), the etiologic agent of Bovine Genital Campylobacteriosis remain elusive. This study evaluated the virulence potential and biovar characteristics of Cfv isolates (n = 13) by PCR screening of putative virulence-factor (VF) genes, Multilocus Sequence Typing (MLST) analysis, antimicrobial susceptibility to tetracycline, penicillin, enrofloxacin and streptomycin testing and whole-genome sequencing (WGS; n = 5), also comparing the latter with 26 other whole-genome sequences of Cfv strains. The putative VF genes encoding type IV secretion system of Cfv (virB2-virB11/virD4) were absent in 92% of isolates, including isolates from aborted foetuses, evidencing that these VF genes are not essential for Cfv pathogenicity. The parA gene, used as a Cfv diagnostic molecular target, was detected in only 3 of 13 isolates, invalidating its use for diagnosis purposes. Three novel sequence types were identified by MLST. Although no in vitro antimicrobial resistance was detected, WGS identified antimicrobial resistance-related genes, including those encoding the multidrug efflux pumps CmeABC and YkkCD, indicating that their presence is not enough to provide antimicrobial resistance. The SNP and accessory protein families analysis segregated the Cfv and Cfv biovar intermedius (Cfvi) strains into different clusters. In conclusion, this study evidenced virulence potential and biovar characteristics of Cfv and Cfvi, which are of relevance for the control of Bovine Genital Campylobacteriosis.

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Susceptibilidade antimicrobiana de Campylobacter fetus subsp. venerealis isolado de bovinos

Cited by 3 publications

References 12 publications

Antimicrobial susceptibility profile of Campylobacter spp. isolated from different animal species in Minas Gerais

Antimicrobial susceptibility profile of Campylobacter spp. isolated from different animal species in Minas Gerais

Principais causas bacterianas de abortamento em bovinos

Genomic and Phenotypic Characterization of Campylobacter fetus subsp. venerealis Strains

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