Biofilm represents a way of life that allows greater survival microorganisms in hostile habitats.

This study aimed to evaluate the virulence characteristics of 55 Campylobacter jejuni strains isolated from chicken carcasses. These included antibiotic resistance, presence genes, and transcription changes after inoculation Caco-2 cells phylogenetic relationship between strains. Resistance amoxicillin norfloxacin was observed in 34/55–61.8% 26/55–47.3% respectively, resistance tetracycline also (18/55–32.7%). The genes flaA, pldA, cadF, ciaB CDT complex were detected 41/55 (74.5%), 35/55...

Salmonella spp. is an important foodborne agent of salmonellosis, whose sources in humans often include products avian origin. The control this bacterium difficult especially when spp organized into biofilms. We hypothesized that the novel nanocomposites ZnO nanocrystals doped with silver (Ag) and oxide (Ag2O) (ZnO:Ag-AgO) synthesized by coprecipitation method could or prevent formation Enteritidis (SE) Heidelberg (SH) biofilm its entry turkey eggs. diffraction characteristics Ag2O showed...

OPINION article Front. Vet. Sci., 30 October 2020Sec. Veterinary Infectious Diseases Volume 7 - 2020 | https://doi.org/10.3389/fvets.2020.576262

To improve the understanding of implications Campylobacterspp. infections in pets and children different environments were analysed 160 faecal samples from 120 (103 dogs 17 cats). Campylobacter spp. detected 6.87% 18.3% cats. From 33 stool positive for spp., 57.6% identified as C. jejuni, 33.4% coli. More than 50% isolates resistant to ceftiofur, sulphazotrim, norfloxacin tetracycline. In humans, most amoxicillin, cefazolin, erythromycin norfloxacin. 19 11 5 contained two four virulence...

This work describes the preparation, characterization and antimicrobial activity of four palladium(II) complexes, namely, [Pd(meg)(1,10-phen)] 1, [Pd(meg)(PPh3)2] 2, [Pd(og)(1,10-phen)] 3 [Pd(og)(PPh3)2] 4, where meg = methyl gallate, og octyl 1,10-phen 1,10-phenanthroline PPh3 triphenylphosphine. As to chemical structures, spectral physicochemical studies 1-4 indicated that or gallate coordinates a ion through two oxygen atoms upon deprotonation. A chelating bidentate phenanthroline...

It was studied, in this work, the effects of supplementation probiotics on performance, pH crop content, morphometry ileum and number enterobacteria cecum broilers. Out 120 studied birds, 60 belonged to test group control group. At 1, 7, 12, 18, 23 28 days age, chickens rations were weighed mortality morbidity determined. Then, birds sacrificed content measured, fragments collected for morphometric analysis cecal quantified. The mean lower that given at 7 18 age. There no differences ration...

The objective of this study was to characterize the C. jejuni IAL2383 strain isolated from humans in Brazil. Transcripts for racR, dnaJ and ciaB genes were found flaA, plda cadF present genome bacteria sensitive most important antimicrobials used treat humans. is a good experimental model analyze interactions with cells.

This study evaluated the ability of Campylobacter jejuni to penetrate through pores shells commercial eggs and colonize interior these eggs, which may become a risk factor for human infection. Furthermore, this assessed survival viability bacteria in eggs. The were placed contact with wood shavings infected C. check passage bacteria. In parallel, inoculated directly into air chamber assess egg yolk. To determine whether albumen fertility interferes entry bacteria, we used varying...

1. The aim of this study was to analyse the association between Escherichia coli isolates recovered from turkeys and expression beta-lactamase genes, such as extended spectrum (ESBL) ampicillin class C (AmpC). phenotype resistance profile examined using amoxicillin ceftiofur resistance. 2. Results showed that 84% turkey harboured 4 or 5 genes associated with CoIV plasmid. In an antibiogram test, 82% were multidrug-resistant, highest levels being against erythromycin (99%) (76.1%)....

The aim of this study was to evaluate the efficacy turmeric (Curcuma longa), also known in Brazil as saffron, on reduction Staphylococcus aureus and Escherichia coli counts chicken meat. Forty breast meat samples were divided two groups (A B). In group A, 10³-10(4)E. (ATCC 25922) cells inoculated B with 10(4)-10(5)S. 9801) cells, after which each three samples. first sample analyzed immediately inoculation. second (control group) stored at 4 ºC for 48 hours 1% (w/w) added third sample,...

Consumption of raw, undercooked or contaminated animal food products is a frequent cause

O objetivo deste estudo foi de comparar as informações e os valores descritos nos rótulos produtos lácteos fermentados com aqueles exigidos pela legislação em vigor, assim como efetuar considerações sobre o comprometimento da informação nutricional forma recomendada Resolução RDC n°360/03 ANVISA/MS. Foram analisados 114 iogurte 28 bebida láctea fermentada diferentes sabores composições nutricionais, 10 marcas e/ou fabricantes sete fermentada. As amostras foram adquiridas na qualidade...

1. The aim was to determine the importance of a contaminated diet as possible cause Campylobacter jejuni infection in broilers.2. This study evaluated viability C. both starter and finisher diets interference from other mesophilic bacteria this viability.3. Starter samples broiler were deliberately with 3 or 5 log CFU·g−1 (NCTC 11351) then maintained at two different storage temperatures (25°C 37°C) for d.4. survived during period and, when inoculated 103 CFU·g−1, multiplied greater...

Campylobacter sp is a microaerophilic, thermotolerating Gram negative bacterium, known to be one of the main causes food-borne human infections. Among foods that carry these microorganisms, chicken outstanding. In Brazil, large exporting country, few researches are conducted about their prevalence in breeder hens and transmission through eggs. The aim this research was verify presence shells within eggs from positive cloacal swab hens. Microbiological analyses were made on swabs 140 weighed...

Abstract 1. The objective of this study was to evaluate the ability Campylobacter jejuni penetrate and colonise eggs from specific-pathogen-free (SPF) heavy breeder hens, determine its effects on viability SPF embryos. 2. We detected C. in 10% hens 20% eggs, which demonstrates bacteria go through pores contaminate vitellus after 3 h contact. These results indicate that there is a risk contamination under commercial production conditions, where, oviposition, contact between egg organic...

ABSTRACT: This study describes an outbreak of avian poxvirus disease in previously pox-vaccinated turkeys Brazil. The had suggestive gross lesions cutaneous the skin head and cervical area without changes flock mortality rates. In slaughterhouse, 30 carcasses were removed from slaughter line to collect tissue for histological analyses characterization virus. virus was identified by conventional polymerase chain reaction (PCR) subsequent gene sequencing. Acanthosis, hyperkeratosis, hydropic...

The infection by Campylobacter spp.constitutes a zoonosis of worldwide distribution, with serious repercussions for public health and significant socio-economic impact.The species that most often are implicated in outbreaks gastrointestinal disease C. jejuni coli.Both recognized as the important greater pathogenic potential from viewpoint food safety.This review aims to clarify discuss, based on literature, epidemiology spp.and main challenges their control, assist better understanding risk...

Açaí berry, a Brazilian palm fruit widely distributed in northern South America, is acknowledged for its functional properties such as high antioxidant capacity and anti-inflammatory activities. Although the açaí juice highly appreciated Brazil even worldwide, commercialization still limited. Microfiltration process largely applied processing, eliminating many of traditional processing steps reducing time, energy addition clarifying agents. Furthermore, microfiltration may eliminate...

We aimed to identify the prevalence of thermophilic species Campylobacter in meats different available on Brazilian commercial market and determine genetic diversity, antimicrobial resistance virulence potential isolates. A total 906 samples, including chicken, beef pork carcasses chicken livers, were purchased retail outlets, prevalences 18.7% (46/246), 3.62% (5/138), 10.14% (14/138), (5/138) 4.47% (11/132), respectively, identified, evidencing dissemination genotypes main producing...

Campylobacter coli is an important species involved in human cases of enteritis, and chickens are carriers the pathogen mainly developing country. The current study aimed to evaluate transmission C. its pathogenic effects chicken embryos. Breeder hens were inoculated intra-esophageally with isolated from chickens, their eggs embryos analyzed for presence bacteria using real-time PCR plate culture. viability was verified. In parallel, SPF air sac; after incubation, submitted same analysis as...