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Article ; Online: Report of Salmonella Saintpaul from chicken carcass co-harbouring blaCTX-M2 and mcr-9.1.

de Almeida Figueira, Arthur / Salles Dias, Thomas / Alves Costa, Gisllany / de Souza, Giovanna Silva / da Costa Abreu, Dayse Lima / Dos Santos Medeiros, Luciana / de Almeida Pereira, Virginia Léo

Journal of global antimicrobial resistance

2024 Volume 37, Page(s) 22–23

Language	English
Publishing date	2024-02-27
Publishing country	Netherlands
Document type	Letter
ZDB-ID	2710046-7
ISSN	2213-7173 ; 2213-7173
ISSN (online)	2213-7173
ISSN	2213-7173
DOI	10.1016/j.jgar.2024.02.005
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Article ; Online: Correction to: SVR-flaA typing of erythromycin- and ciprofloxacin-resistant Campylobacter jejuni strains isolated from poultry slaughterhouses in southern Brazil.

Dias, Thomas Salles / de Almeida Figueira, Arthur / Costa, Gisllany Alves / da Cunha, Nathalie Costa / Rossi, Daise Aparecida / de Melo, Roberta Torres / de Almeida Pereira, Virginia Léo / de Aquino, Maria Helena Cosendey

Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology

2023 Volume 54, Issue 2, Page(s) 1323

Language	English
Publishing date	2023-04-27
Publishing country	Brazil
Document type	Published Erratum
ZDB-ID	2017175-4
ISSN	1678-4405 ; 1517-8382
ISSN (online)	1678-4405
ISSN	1517-8382
DOI	10.1007/s42770-023-00983-7
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Article ; Online: SVR-flaA typing of erythromycin- and ciprofloxacin-resistant Campylobacter jejuni strains isolated from poultry slaughterhouses in southern Brazil.

Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology

2023 Volume 54, Issue 2, Page(s) 1065–1073

Abstract: The emergence of fluoroquinolone and macrolide resistance in C. jejuni, a recognized zoonotic pathogen, has increased worldwide. This study aimed to investigate phenotypic resistance to ciprofloxacin and erythromycin, the molecular mechanisms involved, ... ...

Abstract	The emergence of fluoroquinolone and macrolide resistance in C. jejuni, a recognized zoonotic pathogen, has increased worldwide. This study aimed to investigate phenotypic resistance to ciprofloxacin and erythromycin, the molecular mechanisms involved, and the strain of C. jejuni isolated from broiler carcasses. Eighty C. jejuni isolates from broiler carcasses in southern Brazil were investigated for their susceptibility to ciprofloxacin and erythromycin at minimal inhibitory concentrations. Mismatch amplification mutation assay-polymerase chain reaction (MAMA-PCR) was performed to detect substitutions of Thr-86-Ile, A2074C, and A2075G of domain V in the 23S rRNA. The presence of ermB gene and CmeABC operon were investigated by PCR. DNA sequencing was used to detect substitutions in the L4 and L22 proteins of the erythromycin-resistant strains. The Short Variable Region (SVR) of flaA was used to type all the strains resistant to both antimicrobials. Ciprofloxacin and erythromycin resistance were detected in 81.25% and 30.00% of the strains, respectively, and minimal inhibitory concentration values ranged from ≤ 0.125 to 64 µg/mL for ciprofloxacin and 0.5 to > 128 µg/mL for erythromycin. The Thr-86-Ile mutation in gyrA was observed in 100% of the ciprofloxacin-resistant strains. Mutations in both the A2074C and A2075G positions of 23S rRNA were observed in 62.5% of the erythromycin-resistant strains, while 37.5% had only the mutation A2075G. None of the strains harbored CmeABC operon, and ermB was not detected. Using DNA sequencing, the amino acid substitution T177S was detected in L4, and substitutions I65V, A103V, and S109A were detected in L22. Twelve flaA-SVR alleles were identified among the strains, with the most common SVR-flaA allele, type 287, covering 31.03% of ciprofloxacin- and erythromycin-resistant isolates. The present study revealed a high incidence and high levels of resistance to ciprofloxacin and erythromycin, as well as broad molecular diversity in C. jejuni isolates from broiler carcasses.
MeSH term(s)	Animals ; Ciprofloxacin/pharmacology ; Erythromycin/pharmacology ; Anti-Bacterial Agents/pharmacology ; Campylobacter jejuni/genetics ; Poultry ; Abattoirs ; Brazil ; RNA, Ribosomal, 23S/genetics ; Campylobacter Infections/microbiology ; Drug Resistance, Bacterial/genetics ; Macrolides/pharmacology ; Chickens/microbiology ; Microbial Sensitivity Tests
Chemical Substances	Ciprofloxacin (5E8K9I0O4U) ; Erythromycin (63937KV33D) ; Anti-Bacterial Agents ; RNA, Ribosomal, 23S ; Macrolides
Language	English
Publishing date	2023-04-13
Publishing country	Brazil
Document type	Journal Article
ZDB-ID	2017175-4
ISSN	1678-4405 ; 1517-8382
ISSN (online)	1678-4405
ISSN	1517-8382
DOI	10.1007/s42770-023-00969-5
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Article: First molecular detection of Spiroplasma spp. in ticks from horses in Brazil

da Silva, Nathalia Xavier / Dias, Thomas Salles / Vignoli, Julia Alves / dos Santos Machado, Leandro / Telleria, Erich Loza / de Almeida Pereira, Virginia Léo / do Nascimento, Elmiro Rosendo / da Cunha, Nathalie Costa

Ticks and tick-borne diseases. 2022 Mar., v. 13, no. 2

2022

Abstract: The class Mollicutes comprises microorganisms that lack a cell wall, highly dependent on their host to survive. Within Mollicutes, the genus Spiroplasma comprises motile helical microorganisms associated with various insects and other arthropods. This ... ...

Abstract	The class Mollicutes comprises microorganisms that lack a cell wall, highly dependent on their host to survive. Within Mollicutes, the genus Spiroplasma comprises motile helical microorganisms associated with various insects and other arthropods. This study aimed to detect and characterize Mollicutes microorganisms in ticks of different species of veterinary importance, using molecular techniques. These ticks were collected from dogs, cats, cattle, and horses from Rio de Janeiro's metropolitan regions. They were morphologically classified and pooled according to their species for subsequent DNA extraction. These samples were tested by PCR using class Mollicutes-specific primers (16S rRNA) and positive amplicons were sequenced. The obtained DNA sequences were compared with other Mollicutes sequences deposited in GenBank. We found that four out of 745 (0.54%) of the tick pools were positive for members of the class Mollicutes, identified as Spiroplasma spp.; of the positive pools, one comprised Amblyomma sculptum adults and three comprised Dermacentor nitens nymphs. The present study describes Spiroplasma spp. in ticks in Brazil for the first time. Nevertheless, due to few reports on these microorganisms, further studies on epidemiology, virulence, and pathogenicity are needed.
Keywords	Amblyomma sculptum ; Anocentor nitens ; Spiroplasma ; cattle ; cell walls ; ticks ; virulence ; Brazil
Language	English
Dates of publication	2022-03
Publishing place	Elsevier GmbH
Document type	Article
ZDB-ID	2541872-5
ISSN	1877-9603 ; 1877-959X
ISSN (online)	1877-9603
ISSN	1877-959X
DOI	10.1016/j.ttbdis.2022.101896
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Article: Molecular markers associated with antimicrobial resistance and genotypes of Campylobacter jejuni and Campylobacter coli isolated from broiler and swine flocks in southeast Brazil

Dias, Thomas Salles / Costa, Gisllany Alves / de Almeida Figueira, Arthur / dos Santos Machado, Leandro / da Cunha, Nathalie Costa / do Nascimento, Elmiro Rosendo / de Almeida Pereira, Virginia Léo / de Aquino, Maria Helena Cosendey

Comparative immunology, microbiology, and infectious diseases. 2022 Sept., v. 88

2022

Abstract: This study aimed to identify molecular markers associated with antimicrobial resistance and genotype isolates of Campylobacter spp. from broiler and swine flocks due to its importance to one-health. C. jejuni (n=27) and C. coli (n = 35) strains were ... ...

Abstract	This study aimed to identify molecular markers associated with antimicrobial resistance and genotype isolates of Campylobacter spp. from broiler and swine flocks due to its importance to one-health. C. jejuni (n=27) and C. coli (n = 35) strains were screened for the antimicrobial genetic markers C257T in gyrA, A2074C and A2075G in 23S rRNA, CmeABC, ermB, tetO and blaOXA61 by PCR. Fifteen strains had SVR-flaA and porA genes sequenced to evaluate their genetic diversity. Among C. jejuni strains 62.96% had C257T mutation and only one strain had A2075G mutation. CmeA, cmeB, cmeC, tetO and blaOXA61 were detected respectively in 92.59%, 100%, 100%, 85.19%, 85.19% of the strains. All C. coli had C257T mutation; 48.75% had A2075G and cmeA, cmeB, cmeC, tetO, blaOXA61 were detected in 8.57%, 94.29%, 91.43%, 91.43%, 80%, respectively. Twelve porA and SVR-flaA alleles were detected, with a Simpson index of diversity value of 0.962.
Keywords	Campylobacter coli ; Campylobacter jejuni ; antibiotic resistance ; genetic variation ; genotype ; immunology ; microbiology ; mutation ; swine ; Brazil
Language	English
Dates of publication	2022-09
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	436522-7
ISSN	1878-1667 ; 0147-9571
ISSN (online)	1878-1667
ISSN	0147-9571
DOI	10.1016/j.cimid.2022.101866
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Article ; Online: First molecular detection of Spiroplasma spp. in ticks from horses in Brazil.

da Silva, Nathalia Xavier / Dias, Thomas Salles / Vignoli, Julia Alves / Dos Santos Machado, Leandro / Telleria, Erich Loza / de Almeida Pereira, Virginia Léo / do Nascimento, Elmiro Rosendo / da Cunha, Nathalie Costa

Ticks and tick-borne diseases

2022 Volume 13, Issue 2, Page(s) 101896

Abstract	The class Mollicutes comprises microorganisms that lack a cell wall, highly dependent on their host to survive. Within Mollicutes, the genus Spiroplasma comprises motile helical microorganisms associated with various insects and other arthropods. This study aimed to detect and characterize Mollicutes microorganisms in ticks of different species of veterinary importance, using molecular techniques. These ticks were collected from dogs, cats, cattle, and horses from Rio de Janeiro's metropolitan regions. They were morphologically classified and pooled according to their species for subsequent DNA extraction. These samples were tested by PCR using class Mollicutes-specific primers (16S rRNA) and positive amplicons were sequenced. The obtained DNA sequences were compared with other Mollicutes sequences deposited in GenBank. We found that four out of 745 (0.54%) of the tick pools were positive for members of the class Mollicutes, identified as Spiroplasma spp.; of the positive pools, one comprised Amblyomma sculptum adults and three comprised Dermacentor nitens nymphs. The present study describes Spiroplasma spp. in ticks in Brazil for the first time. Nevertheless, due to few reports on these microorganisms, further studies on epidemiology, virulence, and pathogenicity are needed.
MeSH term(s)	Animals ; Brazil/epidemiology ; Horses ; Nymph ; RNA, Ribosomal, 16S/genetics ; Spiroplasma/genetics ; Ticks
Chemical Substances	RNA, Ribosomal, 16S
Language	English
Publishing date	2022-01-06
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2541872-5
ISSN	1877-9603 ; 1877-959X
ISSN (online)	1877-9603
ISSN	1877-959X
DOI	10.1016/j.ttbdis.2022.101896
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Article ; Online: Molecular markers associated with antimicrobial resistance and genotypes of Campylobacter jejuni and Campylobacter coli isolated from broiler and swine flocks in southeast Brazil.

Dias, Thomas Salles / Costa, Gisllany Alves / de Almeida Figueira, Arthur / Dos Santos Machado, Leandro / da Cunha, Nathalie Costa / do Nascimento, Elmiro Rosendo / de Almeida Pereira, Virginia Léo / de Aquino, Maria Helena Cosendey

Comparative immunology, microbiology and infectious diseases

2022 Volume 88, Page(s) 101866

Abstract	This study aimed to identify molecular markers associated with antimicrobial resistance and genotype isolates of Campylobacter spp. from broiler and swine flocks due to its importance to one-health. C. jejuni (n=27) and C. coli (n = 35) strains were screened for the antimicrobial genetic markers C257T in gyrA, A2074C and A2075G in 23S rRNA, CmeABC, ermB, tetO and blaOXA61 by PCR. Fifteen strains had SVR-flaA and porA genes sequenced to evaluate their genetic diversity. Among C. jejuni strains 62.96% had C257T mutation and only one strain had A2075G mutation. CmeA, cmeB, cmeC, tetO and blaOXA61 were detected respectively in 92.59%, 100%, 100%, 85.19%, 85.19% of the strains. All C. coli had C257T mutation; 48.75% had A2075G and cmeA, cmeB, cmeC, tetO, blaOXA61 were detected in 8.57%, 94.29%, 91.43%, 91.43%, 80%, respectively. Twelve porA and SVR-flaA alleles were detected, with a Simpson index of diversity value of 0.962.
MeSH term(s)	Animals ; Anti-Bacterial Agents/pharmacology ; Anti-Infective Agents/pharmacology ; Brazil/epidemiology ; CME-Carbodiimide ; Campylobacter Infections/epidemiology ; Campylobacter Infections/veterinary ; Campylobacter coli/genetics ; Campylobacter jejuni ; Chickens ; Drug Resistance, Bacterial/genetics ; Genotype ; Swine ; Swine Diseases
Chemical Substances	Anti-Bacterial Agents ; Anti-Infective Agents ; CME-Carbodiimide (2491-17-0)
Language	English
Publishing date	2022-08-18
Publishing country	England
Document type	Journal Article
ZDB-ID	436522-7
ISSN	1878-1667 ; 0147-9571
ISSN (online)	1878-1667
ISSN	0147-9571
DOI	10.1016/j.cimid.2022.101866
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Article: Potentially pathogenic mycoplasmas in the external ear canal of clinically normal cattle in Southeast Brazil: first report.

Dos Santos, Sandra Batista / do Nascimento, Elmiro Rosendo / Faccini, João Luiz Horácio / Barreto, Maria Lúcia / de Almeida Pereira, Virginia Léo

Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology

2009 Volume 40, Issue 3, Page(s) 455–457

Abstract: Mycoplasmas were searched in the ear canal flushing of 60 bovine in Brazil. The prevalence obtained was 80%. The percentages of typified species were 12.5%, for M. alkalenses; 2.1%, M. arginini; 8.35%, M. bovirhinis; 2.1%, M. bovis; 25.0%, M. ... ...

Abstract	Mycoplasmas were searched in the ear canal flushing of 60 bovine in Brazil. The prevalence obtained was 80%. The percentages of typified species were 12.5%, for M. alkalenses; 2.1%, M. arginini; 8.35%, M. bovirhinis; 2.1%, M. bovis; 25.0%, M. conjunctivae; 14.6%, M. mycoides subsp. mycoides LC and 10.4% M. capricolum.
Language	English
Publishing date	2009-09-01
Publishing country	Brazil
Document type	Journal Article
ZDB-ID	2042078-X
ISSN	1517-8382
ISSN	1517-8382
DOI	10.1590/S1517-83822009000300006
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Article: Mycoplasma synoviae infection on Newcastle disease vaccination of chickens.

de Cássia Figueira Silva, Rita / do Nascimento, Elmiro Rosendo / de Almeida Pereira, Virgínia Léo / Barreto, Maria Lúcia / do Nascimento, Maria da Graça Fichel

Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology

2008 Volume 39, Issue 2, Page(s) 384–389

Abstract: Newcastle disease is characterized by respiratory manifestations in association with nervous and/or digestive symptoms. Its prevention is done by vaccination with live attenuated (lentogenic strains) and/or killed vaccines. The lentogenic strains can ... ...

Abstract	Newcastle disease is characterized by respiratory manifestations in association with nervous and/or digestive symptoms. Its prevention is done by vaccination with live attenuated (lentogenic strains) and/or killed vaccines. The lentogenic strains can lead to strong post-vaccination reaction, principally due to the presence of other pathogenic agents. Among them, Mycoplasma synoviae is worldwide important, mainly in Brazil. The dissemination of this agent in poultry flocks has been achieved due to difficulties in diagnosis and disease reproduction, virulence variations among different M.synoviae strains, and attribution of typical M.synoviae disease manifestation to other disease agents. This experimental study in SPF chicks (Gallus gallus), previously infected by M.synoviae and thereafter vaccinated against Newcastle disease, was done with the objective of evaluating M.synoviae pathogenicity through assessment of post-vaccinal respiratory reactions and serologic responses to Newcastle disease virus vaccine in the absence of environmental factors. A total of 86 three days old chicks were used, being 57 infected by eye and nostril drop, with chicken activated M. synoviae strain WVU 1853. Seven days later, 21 mycoplasma infected birds plus 29 not mycoplasma infected ones were vaccinated against Newcastle disease. As results, the not infected and vaccinated birds yielded, significantly, higher and longer lasting serologic responses to Newcastle disease vaccine virus than those infected and vaccinated. Similarly, the infected and vaccinated birds yielded lower serologic reactions to M.synoviae than those only mycoplasma infected. No post-vaccinal respiratory reaction was observed in the vaccinated birds.
Language	English
Publishing date	2008-06-01
Publishing country	Brazil
Document type	Journal Article
ZDB-ID	2042078-X
ISSN	1517-8382
ISSN	1517-8382
DOI	10.1590/S1517-838220080002000033
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