The therapeutic challenges caused by multidrug-resistant (MDR) and extensively drug-resistant (XDR) bacteria have necessitated the development of alternative treatment strategies. Phage-antibiotic synergy (PAS) has recently emerged to replace or possibly supplement antibiotics. We isolated the lytic phage NTNC80A from hospital sewage in Chandigarh, India, and it belongs to the class Caudoviricetes of viruses.
View Article and Find Full Text PDFObjectives: Knowledge of local antibiotic susceptibility rates is essential to strengthen antimicrobial stewardship programs. (https://dashuti.com/), promotes the dissemination of focused local antibiograms in community urinary tract infection (UTI).
View Article and Find Full Text PDFIndian J Med Microbiol
April 2025
Background: In the age of modern medicine, CRISPR-Cas system-aided phage engineering has emerged as a major game changer for developing personalized antibacterial treatments. Modifying genomic DNA at a specific location leads to the inactivation of target genes, the acquisition of novel genetic features, and the correction of lethal gene mutations. Phages can be modified to precisely detect and control bacteria because of the vast possibilities of CRISPR-Cas-based genetic engineering.
View Article and Find Full Text PDFIntroduction: Non-typhoidal (NTS) serovars are the leading global cause of gastroenteritis and have established reservoirs in food animals.
Gap Statement: Due to a lack of surveillance, there is limited information on the distribution of NTS serovars in India.
Aim: Here, we investigated the epidemiology, sequence types, serovar distribution, phylogenetic relatedness, and antimicrobial resistance patterns of NTS in humans and animals across a large geographic area in Northern India.
Background: The burden of foodborne diseases and antimicrobial resistance carried by key foodborne pathogens in India is unknown due to a lack of an integrated surveillance system at the human-animal interface.
Methods: We present data from the WHO-AGISAR (Advisory Group on Integrated Surveillance of Antimicrobial Resistance), India project. Concurrent human and animal sampling was done across a large area across north India.
Indian J Med Microbiol
September 2024
Small colony variants (SCVs) in Klebsiella pneumoniae are rare and understudied. We report an SCV of Klebsiella pneumoniae isolated from the urine of a prostate cancer patient undergoing prolonged radiotherapy. The strain was non-lactose fermenting, non-mucoid, slow-growing, multi-drug resistant, and showed atypical biochemical reactions and biofilm formation.
View Article and Find Full Text PDFIJID Reg
June 2024
Objectives: Evidence-based prescribing is essential to optimize patient outcomes in cystitis. This requires knowledge of local antibiotic resistance rates. Diagnostic and Antimicrobial Stewardship (DASH) to Protect Antibiotics (https://dashuti.
View Article and Find Full Text PDFHere, we report the genomic characterization of a pan drug-resistant (PDR) enteroaggregative Escherichia coli (EAEC) isolated from an immunocompromised infant who had diarrhea. The isolate belonged to the sequence type (ST) 38, which is a known enteroaggregative Escherichia coli (EAEC)/uropathogenic Escherichia coli (UPEC) hybrid strain having multi-drug resistance (MDR). The strain carried genes encoding multiple resistances to carbapenems, third-generation cephalosporins, polymyxin, fluoroquinolones, aminoglycosides, fosfomycin, nitrofurantoin, sulphonamides, and multiple efflux pump genes.
View Article and Find Full Text PDFEnteroaggregative (EAEC) is an emerging enteric pathogen that causes acute and chronic diarrhea in developed and industrialized countries in children. EAEC colonizes the human intestine and this ability to form colonies and biofilm is an important step in pathogenesis. Here, we investigated the relationship between known or putative 22 EAEC virulence genes and biofilm formation in isolates derived from acute diarrhea and healthy children and their aggregative adherence (AA) pattern with Hep-2 cell lines.
View Article and Find Full Text PDFIndian J Med Microbiol
March 2024
Neisseria mucosa is saprophytic human commensal but reported as a causative agent in a couple of urinary tract infections [UTI] in susceptible individuals. In the present case, a young girl with long standing neurological problems presented with bladder outlet obstruction and fever. Her urine culture yielded Neisseria mucosa which was susceptible to broad spectrum penicillins, aminoglycosides, cephalosporins, ciprofloxacin, and azithromycin.
View Article and Find Full Text PDFGram positive bacilli in the urine are usually dismissed as contaminants in urine specimens as these are commensal flora of skin and mucous membranes. Corynebacterium species were misidentified in the past due to complex biochemicals but the advent of modern diagnostics has made their identification quicker and accurate. Corynebacterium species have recently emerged as pathogens of nosocomial outbreak potential.
View Article and Find Full Text PDFIndian J Med Res
September 2023
Background & Objectives: The study of Shigella pathogenesis at present is severely hampered by the lack of a relevant animal model that replicates human bacillary dysentery. Different Shigella serogroups cause varying severity of clinical illness. Ex vivo colonization of Shigella flexneri, S.
View Article and Find Full Text PDFKlebsiella pneumoniae (Kp), which is associated with hospital-acquired infections, is extensively drug-resistant (XDR), making treatment difficult. Understanding the genetic epidemiology of XDR-Kp can help determine its potential to be hypervirulent (hv) through the presence of siderophores. We characterized the genomes of 18 colistin-resistant XDR-Kp isolated from 14 patients with complicated tract infection at an Indian healthcare facility.
View Article and Find Full Text PDFAccess Microbiol
July 2023
Introduction: Diarrhoeagenic (DEC) remains one of the major causes of acute diarrhoea episodes in developing countries. The percentage of acute diarrhoea cases caused by DEC is 30-40 % in these countries. Approximately 10% of isolates obtained from stool specimens have been reported to be non-lactose-fermenting (NLF).
View Article and Find Full Text PDFAntibiotics (Basel)
June 2023
Cholera, a disease of antiquity, is still festering in developing countries that lack safe drinking water and sewage disposal. , the causative agent of cholera, has developed multi-drug resistance to many antimicrobial agents. In aquatic habitats, phages are known to influence the occurrence and dispersion of pathogenic .
View Article and Find Full Text PDFPurpose: Urinary tract infection is one of the most prevalent disease affecting people from all age groups. For its diagnosis, conventional culture and antibiotic susceptibility is the gold standard. However, its major limitation is that the results take minimum of 24 h and antibiotic susceptibility is available after 48 h.
View Article and Find Full Text PDFGlobally, urinary tract infections (UTIs) are one of the most frequent bacterial infections. Uropathogenic (UPEC) are the predominant etiological agents causing community and healthcare-associated UTIs. Biofilm formation is an important pathogenetic mechanism of UPEC responsible for chronic and recurrent infections.
View Article and Find Full Text PDFUrinary tract infections (UTIs) are among the most common bacterial infections in humans. Uropathogenic (UPEC), which are the most frequent agents causing community as well as hospital-acquired UTIs, have become highly drug-resistant, thus making the treatment of these infections challenging. Recently, the use of bacteriophages (or 'phages') against multidrug-resistant (MDR) and extensively drug-resistant (XDR) microorganisms has garnered significant global attention.
View Article and Find Full Text PDFThis data article describes the whole-genome sequencing and activity data of phage NTEC3 isolated from a community sewage sample in Chandigarh, India. The phage NTEC3 was active against multi-drug-resistant (MDR) and extensively drug-resistant (XDR) biofilm-forming Uropathogenic (UPEC) strains. The genome of this phage was linear, double-stranded, and 44.
View Article and Find Full Text PDFUrinary tract infections (UTIs) are a serious health concern worldwide. Treatment of UTIs is becoming a challenge as uropathogenic Escherichia coli (UPEC), which is the most common etiological agent, has developed resistance to the main classes of antibiotics. Small molecules that interfere with metabolic processes rather than growth are attractive alternatives to conventional antibiotics.
View Article and Find Full Text PDFPhage vB_SenA_SM5, active against multiple isolates of multidrug-resistant Salmonella enterica serovar Typhi, was isolated from the sewage water of a tertiary-care referral hospital in Chandigarh, India. It has a 154.4-kb-long double-stranded DNA genome, belongs to the family , and is closest to Salmonella phage Chennai, which was isolated in southern India.
View Article and Find Full Text PDFIndian J Med Microbiol
May 2022
Purpose: Dendritic cells (DC) are key regulators of immune response with the ability to affect both the innate and adaptive immune responses and are abundant in the gut mucosa. The severity of shigellosis varies with the serotype involved with S. dysenteriae producing the severest infections with complications and S.
View Article and Find Full Text PDFAim: We aimed to study host range, stability, genome and antibiofilm activity of a novel phage vB_EcoA_RDN8.1 active against multi-drug resistant (MDR) and extensively drug-resistant (XDR) biofilm-forming uropathogenic Escherichia coli isolates.
Methods And Results: A novel lytic phage vB_EcoA_RDN8.
Indian J Med Microbiol
April 2022
Purpose: The ubiquitous presence and rampant spread of antibiotic resistant strains of Shigella spp is a major public health concern. Therefore, monitoring the trends of antimicrobial resistance in them is essential.
Methods: A total of 15440 stool samples were inoculated on MacConkey agar, lysine deoxycholate agar and Selenite F enrichment broth from 2001 to 2015.