Studies on occurrence, characterisation and decontamination of emerging pathogenic<i>Escherichia coli</i>(STEC, ETEC and EIEC) in table eggs

Vinayananda, CO; Fairoze, Nadeem; Madhavaprasad, C. B.; Byregowda, S. M.; Nagaraj, Chandran; Bagalkot, Prashanth Suresh; Karabasanavar, Nagappa S.

doi:10.1080/00071668.2017.1373387

Cited by 10 publications

(4 citation statements)

References 36 publications

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“…In recent years, with the continuous improvement in the intensification of livestock husbandry and aquaculture, the density of housed animals has increased. In addition, the spread of animal infectious diseases is accelerating, and various animal epidemics have emerged ( Wu et al, 2012 ; Mellata, 2013 ; Mughini-Gras et al, 2014 ; Threlfall et al, 2014 ; Barbosa et al, 2017 ; Poulsen et al, 2017 ; Stromberg et al, 2017 ; Vinayananda et al, 2017 ). Thus, the disinfection of the livestock and poultry houses has become an important measure to prevent and control diseases.…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Disinfectants on Bacterial Aerosol Diversity in Poultry Houses

Jiang

Tang

et al. 2018

Front. Microbiol.

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To better understand the effect of different disinfectants on the types and quantities of microorganisms in a broiler chicken house, five different types of disinfectants, including ozone, available chlorine, quaternary ammonium salt, glutaraldehyde, and mixed disinfectant, were used. The broiler house microbial communities were analyzed by high-throughput sequencing combined with air sampling. The results showed that the concentrations of airborne aerobic bacteria in the empty broiler houses after application of different disinfectants were significantly reduced compared to a house untreated with disinfectant (P < 0.05 or P < 0.01), and the number of inhalable particles of airborne aerobic bacteria sharply decreased after disinfection. Of the five disinfectants, the mixed disinfectant had the best disinfection efficacy on the total microbial communities (P < 0.05). A total of 508,143 high-quality sequences were obtained by high-throughput sequencing, which identified 1995 operational taxonomic units. In total, 42 phyla and 312 genera were identified. The structures of airborne microbial communities in the broiler houses after the different disinfectants were applied differed. In the house treated with the mixed disinfectant, the microbial communities containing opportunistic pathogens, such as Escherichia-Shigella, Bacillus, and Pseudomonas, had the lowest abundance, with a significant decrease compared to the house untreated with disinfectant. The alpha diversity index showed low diversity of the microbial communities in the house treated with mixed disinfectant. In contrast to the other four disinfectants, only a small amount of bacteria was detected in the air sample in the house treated with the mixed disinfectant; specifically, only four phyla were found (Proteobacteria, Bacteroidetes, Actinobacteria, and Firmicutes). The mixed disinfectant produced a positive effect on disinfection for four phyla; however, it didn’t thoroughly eliminate them. At genus level, Bacillus, Arenimonas, and Shinella could not be detected in the house treated with the mixed disinfectant, but were detected in houses treated with other disinfectants. The high-throughput sequencing results revealed that the combination of multiple disinfectants exhibited a good disinfection efficacy and that this technique could disinfect the air of broiler houses. These results will help guide the development of a reasonable program for broiler house disinfection.

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Section: Introductionmentioning

confidence: 99%

Effect of Different Disinfectants on Bacterial Aerosol Diversity in Poultry Houses

Jiang

Tang

et al. 2018

Front. Microbiol.

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“…Only ~10% (n = 4) of the studies included in this review analyzed E. coli from a combination of the three dimensions of the One Health approach (i.e., environment, animals, and humans). Refer Table A2 for specific details and a summary of each study [8,11,16,[25][26][27][28][29][30][31][32][33][34][35][36][37][38][40][41][42][43][44][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61]. One Health is a powerful transdisciplinary tool.…”

Section: Discussionmentioning

confidence: 99%

“…The pattern of antimicrobial resistance was similar among the three sources, with an MAR index of 0.19 for free-range table eggs, 0.23 for unprocessed eggs, and 0.28 for processed eggs. The authors stated that the high MAR index demonstrated the need to control the use of antimicrobials in animal farming to prevent cross-transfer of ESBL-producing E. coli to humans, as eggs function as a staple in the Indian diet [32].…”

Section: Ar-e In Animalsmentioning

confidence: 99%

A One Health Review of Community-Acquired Antimicrobial-Resistant Escherichia coli in India

Rajagopal¹,

Chandy

Graham³

2021

IJERPH

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Antimicrobial resistance (AMR) threatens to undermine nearly a century of progress since the first use of antimicrobial compounds. There is an increasing recognition of the links between antimicrobial use and AMR in humans, animals, and the environment (i.e., One Health) and the spread of AMR between these domains and around the globe. This systematic review applies a One Health approach—including humans, animals, and the environment—to characterize AMR in Escherichia coli in India. E. coli is an ideal species because it is readily shared between humans and animals, its transmission can be tracked more easily than anaerobes, it can survive and grow outside of the host environment, and it can mobilize AMR genes more easily than other intestinal bacteria. This review synthesized evidence from 38 studies examining antimicrobial-resistant E. coli (AR-E) across India. Studies of AR-E came from 18 states, isolated from different sample sources: Humans (n = 7), animals (n = 7), the environment (n = 20), and combinations of these categories, defined as interdisciplinary (n = 4). Several studies measured the prevalence of AMR in relation to last-line antimicrobials, including carbapenems (n = 11), third-generation cephalosporins (n = 18), and colistin (n = 4). Most studies included only one dimension of the One Health framework, highlighting the need for more studies that aim to characterize the relationship of AMR across different reservoirs of E. coli.

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“…In recent years, with the continuous improvement in the intensification of livestock husbandry, the density of housed animals has increased. In addition, the spread of animal infectious diseases is accelerating, and various animal epidemics have emerged [22][23][24][25][26][27][28][29]. Thus, the disinfection of the poultry houses has become an important measure to prevent and control diseases.…”

Section: Introductionmentioning

confidence: 99%

Field trial to monitor the efficacy of some commercial poultry disinfection on Salmonella typhymurium through cold fogging

Kaoud¹,

Khalil²,

Abdelhamed³

2022

GSC Adv. Res. Rev.

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The recovered results showed that: the incidence of Salmonella typhymurium in the observed commercial egg-layer flocks; the isolation of Salmonella typhymurium from 5 flocks (33.7 %) out of 15 flocks, the mortalities rates at the end of 78 weeks of age was 16 % and also, the current egg-production, average egg weight, hen housed day, hen housed egg and percent peak of egg-production were: 68 %,59.2 gm, 68.4%, 318, 78% and 70%, respectively. The efficacy of the most common disinfectants against Salmonella typhymurium was determined. The selected disinfectants were; Formalin, Phenol, QAC, Halamid, Virkon'S and Micro Sept M against Salmonella typhymurium isolates of the studied commercial egg- layers in Egypt (hfq gene of Salmonella typhimurium). It was observed that, S. typhimurium affected significantly only by Micro Sept M and Virkon'S, at low rate of application; the Log 10 of populations after15 mint exposure were 4.2, 4.4, respectively the recovered results showed also, that: Formalin, Phenol, Micro Sept M and Virkon'S treatment demonstrated a significant reduction in Salmonella typhymurium populations at high rate of application. It is evident from the results using formalin, phenols and QAC at concentration of 4% ,5% and 33.3 % by fogging other than spraying had increased action on the tested pathogens S. typhimurium after 15 min contact time (35.7%,42.8 % and 76.8%, respectively).

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Studies on occurrence, characterisation and decontamination of emerging pathogenicEscherichia coli(STEC, ETEC and EIEC) in table eggs

Cited by 10 publications

References 36 publications

Effect of Different Disinfectants on Bacterial Aerosol Diversity in Poultry Houses

Effect of Different Disinfectants on Bacterial Aerosol Diversity in Poultry Houses

A One Health Review of Community-Acquired Antimicrobial-Resistant Escherichia coli in India

Field trial to monitor the efficacy of some commercial poultry disinfection on Salmonella typhymurium through cold fogging

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