Commensal bacteria

Emerging evidence suggests that the in utero environment is not sterile as once presumed. Work in the mouse demonstrated transmission of commensal bacteria from mother to fetus during gestation, though it is unclear what modulates this process.

12p vioraclene 31-03-2024 3 1   Download

Coagulase negative staphylococci (CoNS) are commensal bacteria on human skin. Staphylococcus lugdunensis is a unique CoNS which produces various virulence factors and may, like S. aureus, cause severe infections, particularly in hospital settings.

16p vitzuyu2711 29-09-2021 8 1   Download

Staphylococcus aureus is an important opportunistic pathogen and a commensal bacterium, thriving in the nasal cavities of 20% of the human population. Little is known about the dynamics of asymptomatic colonization and the occasional transition to infectious disease.

13p visilicon2711 20-08-2021 7 1   Download

The Streptococci are Gram-positive spherical bacteria (cocci) that characteristically form pairs and chains during growth. They are widely distributed in nature. Some are members of the normal human flora for e.g. commensal Streptococci of the oral cavity, are common causes of sub-acute bacterial endocarditis, others are associated with important human disease attributable in part to injection by Streptococci, in part to sensitization to them. Streptococcus species is uniformly susceptible to penicillin. But macrolides remains drug of choice for patient allergic to penicillin.

13p trinhthamhodang7 31-08-2020 8 2   Download

Antibiotic resistance is a growing problem in pediatric urology as nonselective use of prophylaxis, and poor empiric prescribing practices. The feacal reservoir provides optimal conditions for the transmission of resistance genes within and between bacterial species as gut is exposed to large number of bacteria.

5p nguaconbaynhay6 23-06-2020 17 1   Download

Biofilms are the form of life for great majority of oral bacteria and contribute to various oral diseases. To maintain oral health a balance between the human host and the microbes is essential. The excessive formation of oral biofilm results in intraoral diseases such as dental caries, gingivitis and periodontitis. The ability of pathogenic bacteria to form a biofilm increase their resistance to antibiotics.

10p angicungduoc5 14-06-2020 12 1   Download

The exploitation of the surface display system of food and commensal lactic acid bacteria (LAB) for bacterial, viral, or protozoan antigen delivery has received strong interest recently. The Generally Regarded as Safe (GRAS) status of the Lactococcus lactis coupled with a non-recombinant strategy of in-trans surface display, provide a safe platform for therapeutic drug and vaccine development.

10p viuchiha2711 21-04-2020 11 1   Download

This study aimed to assess the antibiotic susceptibility of Lactobacillus strains of goat milk origin. Lactobacilli are generally recognized as safe, but can act as reservoir for genes carrying antibiotic resistance traits; which can further spread to commensal, food spoilage or pathogenic organisms. Lactic acid bacteria (LAB) strains coming from animal sources had significant interaction with antibiotics. Goat milk, being second to cow milk in production and due to its close resemblance to human milk composition, is among favorable source for isolating potential probiotic LAB strains.

9p trinhthamhodang4 22-03-2020 14 1   Download

Antimicrobial resistance in bacteria from the family Enterobacteriaceae is an important indicator of the emergence of resistant bacterial strains in the gut microbiota. A total of 150 cloacal swabs were collected from free range chickens, 217 Enterobacteriaceae isolates were identified. This study investigated the antimicrobial susceptibility and resistance of commensal Enterobacteriaceae from free-range chickens to 14 antimicrobial agents using the disc diffusion method.

9p nguaconbaynhay4 22-03-2020 10 1   Download

Antimicrobial resistance (AMR) is one of the leading threats in healthcare management system. Staphylococcus aureus is a commensal bacteria commonly seen on skin and nasal passage that can turn as an opportunistic pathogen. The present study was carried out to evaluate the nasal carriage of S. aureus and methicillinresistant S. aureus (MRSA) among apparently healthy companion animals and livestock. A total of 160 nasal swabs were collected from dogs (30), cats (30), cattle (40), goats (30), and pigs (30).

7p nguaconbaynhay4 22-03-2020 14 2   Download

Non-fermenting Gram negative bacilli (NFGNB) are a group of bacteria which are aerobic, non sporing and most commonly they are saprophytes. They are also found as commensals in both man and animals. NFGNB are previously considered as a contaminant but now it is emerged as a important cause for life threatening nosocomial infections and also multidrug resistant organisms. Materials and methods: One year prospective study was conducted and our aim is to characterise the non fermenters from various clinical samples and their antibiogram.

7p caygaocaolon3 09-03-2020 23 0   Download

Antibiotic resistance is observed in both pathogenic and normal commensal flora. Gastrointestinal tract may serve as a reservoir for carbapenem resistant Enterobacteriaceae (CRE), resulting in cross transmission within / among health care settings. Awareness of the fecal carriage of Extended spectrum Beta lactamase (ESBL) and CarbapenemaseProducing Enterobacteriaceae (CPE) bacteria is very important for the clinicians, microbiologists, infection control practitioners and epidemiologists.

7p chauchaungayxua3 07-02-2020 18 0   Download

Nonfermentative group of bacteria have been incriminated as emerging opportunistic pathogens, especially from hospital settings due to their increasing frequency of isolation from clinical specimens. Nonfermenters show natural resistance to a wide range of commonly used antibiotics. This study includes 50 isolates of nonfermenters from different clinical specimens like Pus, Sputum, blood and urine obtained from patients attending SVS Medical college & Hospital from Jan 2007 to March 2008. Out of 50 nonfermenters, Pseudomonas sp. (82%), Acinetobacter sp. (14%), Alcaligens sp.

8p chauchaungayxua3 07-02-2020 6 0   Download

Bacterial Vaginosis (BV) is a shift or disturbance in balance of vaginal microflora, the normal vaginal microflora consisting of Lactobacillus is replaced by over growth of other commensal bacteria. Other characteristic of BV is increase in vaginal pH. Clinically BV presents as increased thin homogenous vaginal discharge with or without burning micturation and itching. It is an extremely common health problem in women with sexually transmitted infections, pregnant women and women attending Gynecology clinics.

12p nguathienthan2 26-12-2019 13 0   Download

Cytolethal distending toxin, produced by several Gram-negative bacteria, and colibactin, secreted by several commensal and extraintestinal patho-genic Escherichia coli strains, are the first bacterial genotoxins to be described to date.

12p cosis54 04-01-2013 41 3   Download