VITEK 2 System: Introduction, Organisms List and Identification Cards, Principle, Identification Procedure, Result-Interpretation, and Keynotes

The image shows a front view of the bioMérieux VITEK 2 Compact, a benchtop automated system designed for rapid microbial identification and antibiotic susceptibility testing in clinical laboratorie

Introduction The VITEK 2 System is an automated microbiology platform designed for the rapid identification (ID) and antimicrobial susceptibility testing (AST) of a wide range of microorganisms. It utilizes miniaturized, closed cards that enhance lab safety and streamline workflow. The VITEK 2 cards are lightweight, …

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PANTA Supplement: Introduction, Composition and Function, Uses, and Keynotes

Vials of MGIT PANTA antibiotic supplement and MGIT Growth Supplement for suppressing contamination and enriching Mycobacterium tuberculosis

Introduction In microbiology and Tuberculosis (TB) diagnostics, PANTA is an antimicrobial supplement used to prevent the overgrowth of contaminating microorganisms in liquid culture media. It is primarily used with the BD BACTEC MGIT 960 system.  PANTA is a selective antibiotic cocktail designed for the primary isolation of mycobacteria from …

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Mycobacterium fortuitum : Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Mycobacterium fortuitum growth on modified Middlebrook 7H9 broth with PANTA supplement after 3 days of incubation

Introduction Mycobacterium fortuitum is a rapidly growing, nontuberculous mycobacterium (NTM). It is found ubiquitously in the environment, primarily associated with skin, soft tissue, and post-surgical wound infections. As an opportunistic pathogen that is known for its ability to grow within 7 days, it often causes infections …

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Aerococcus viridans: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Aerococcus viridans in Gram staining of culture

Introduction Aerococcus viridans is a gram-positive coccus that rarely infects humans. It usually inhabits hospital environments. Moreover, it exists in air and water. It causes urinary tract infections, endocarditis, and bacteremia. Additionally, it appears in various clinical specimens. Furthermore, laboratories sometimes misidentify it as viridans …

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Group D streptococci: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Gram positive cocci in singles, pairs, and chains of Group D streptococci

Introduction Group D streptococci constitute a diverse group of bacteria found in humans. Furthermore, they inhabit the gastrointestinal tract reliably. They reside in the female genital tract, too. Moreover, they play a role in opportunistic infections frequently. They cause endocarditis in some patients. Additionally, they …

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Streptococcus mutans: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Streptococcus mutans in wet mount of culture microscopic examination

Introduction Streptococcus mutans is a Gram-positive bacterium that colonizes the human oral cavity. Furthermore, it plays a central role in dental plaque formation. The bacterium adheres to tooth surfaces and forms robust biofilms. Moreover, it metabolizes sugars to produce acids that erode enamel. Additionally, researchers …

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Peptostreptococcus: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Introduction Peptostreptococcus is a genus of anaerobic, Gram-positive cocci commonly found in the human body as part of the normal flora. Moreover, it resides in various locations, including the mouth, gastrointestinal tract, skin, and female genital tract. In addition, it plays a role in maintaining …

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Enterococcus avium-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynote

Enterococcus avium colony morphology on CLED agar

Introduction Enterococcus avium is a Gram-positive bacterium commonly found in birds. However, it can also inhabit the gastrointestinal tracts of humans and animals. Although it is less prevalent than other Enterococcus species, E. avium has been identified as a nosocomial pathogen in humans. Notably, it …

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