Characterization of diarrhoeagenic Escherichia coli with special reference to antimicrobial resistance isolated from hospitalized diarrhoeal patients in Kolkata (2012-2019), India. | LitMetric
Aims: This study analyses the prevalence and antimicrobial resistance (AMR) of major diarrhoeagenic Escherichia coli (DEC) pathotypes detected in hospitalized diarrhoeal patients in Kolkata, India, during 2012-2019.
Methods And Results: A total of 8891 stool samples were collected from the Infectious Diseases Hospital, Kolkata and screened for the presence of enteric pathogens. Multiplex PCR identified the presence of DEC in 7.8% of the samples, in which ETEC was most common (47.7%) followed by EAEC (38.4%) and EPEC (13.9%). About 54% cases were due to sole DEC infections. Majority of the mixed DEC infections were caused by the Vibrio spp. (19.1%) followed by Rotavirus (14.1%) and Campylobacter spp. (8.4%). ETEC and EAEC were associated significantly with diarrhoea in children <5 years of age, whereas EPEC and also ETEC were prevalent in patients aged between 5 and 14 years. AMR profile showed high prevalence of multidrug resistance (MDR) among DEC (56.9%) in which 9% were resistant to antibiotics of six different antimicrobial classes. Screening of the AMR conferring genes of DEC showed the presence of bla (30.2%) in highest number followed by bla (27.5%), tetB (18%), sul2 (12.6%), strA (11.8%), aadA1 (9.8%), bla (9%), dfrA1 (1.6%) and bla (1.2%).
Conclusions: These findings highlighted the high prevalence of MDR in major DEC pathotypes that could be considered as the leading aetiological bacterial agent responsible for diarrhoea and suggests a significant public health threat.
Significance And Impact Of The Study: The results of this study can help to improve the understanding of the epidemiology of DEC infections in patients with diarrhoea. Monitoring of AMR surveillance needs special attention because the DEC isolates were highly resistant to commonly used antimicrobials in the treatment of diarrhoea.
Objective: This systematic review aimed to explore any demographic, biological and behavioural characteristics of men who have sex with men (MSM) with diarrhoeagenic .
Design/methods: We searched MEDLINE, EMBASE, and CINAHL for manuscripts published to March 2024. One author screened manuscript abstracts; two authors independently conducted a full text review.
Introduction: Diarrhoeagenic Escherichia coli (DEC) persistently challenges public health in Africa, contributing substantially to the diarrhoeal disease burden. This systematic review and meta-analysis illuminate the distribution and antimicrobial resistance (AMR) patterns of DEC pathotypes across the continent.
Methods: The review selectively focused on pathotype-specific studies reporting prevalence and/or AMR of human-derived DEC pathotypes from African nations, excluding data from extra-intestinal, animal, and environmental sources and studies focused on drug and mechanism experiments.
* The most commonly found PDMs were atypical enteropathogenic E. coli (16%), Yersinia enterocolitica (2%), and Shiga toxin-producing E. coli (1.7%), while other PDMs were less frequent.
* Traveling outside Europe significantly increased the odds of carrying Campylobacter spp. and enterotoxigenic E. coli, while older individuals (≥65 years) were less likely to carry these microbes compared
Department of Consumer and Food Sciences, Faculty of Natural and Agricultural Sciences, University of Pretoria, Private Bag X20, Pretoria 0028, South Africa.
In Mozambique, about 500,000 cases of diarrhoea were caused by foodborne pathogens in 2018. A review of the epidemiology of diarrhoea in children under five showed a high disease burden. This study aimed to identify Diarrhoeagenic (DEC) and spp.
* Stool samples from 167 diarrhoea cases and 334 control children were analyzed, revealing DEC strains present in a higher percentage of sick children, especially during the wet season, and linked to factors like caregiver education and breastfeeding practices.
* The DEC showed high resistance to common antibiotics like sulphonamides and ampicillin, but were mostly susceptible to quinolones and carbapenems, stressing the need for better education and healthcare practices to curb these infections.
