The Bacteria Rothia belongs to the family Micrococcaceae – the same family as Micrococcus spp., Stomatococcus spp. and Kocuria spp. There are 8 species of Rothia – but only Rothia dentocariosa and Rothia mucilaginosa has been associated with human disease. It is a member of the mouth and upper respiratory tract flora. Laboratory Infection Rothia…
Vaccine Description and Composition “The dengue vaccination Qdenga® is a tetravalent live attenuated vaccine. It is produced in Vero cells by recombinant DNA technology and contains serotype-specific surface protein genes of the four dengue serotypes, engineered into a dengue type 2 backbone.” Storage and Presentation “Vaccines should be stored in the original packaging at +2C̊…
Bacteria: Pathogenicity: Culture and identification: Infection caused by Eikenella: Points to remember Eikenella corrodens is usually susceptible to: Non-susceptible to:
The Fungus: Identification: It initially forms white colonies with a yellow back, which quickly becomes black. Conidia is rough, brownish-black, biseriate, and covers the entire vesicle. A key feature in diagnosing A. niger infection is the presence of calcium oxalate crystals on pathological examination. The presence of crystals can be taken as an indication of A niger…
Paracoccus yeei is an aerobic Gram-negative coccobacilli typically found in soil and brine. It appears as diplococci and may have a visible vacuole – giving an “O” shaped appearance. It may under-decolourise and appear as Gram-positive cocci. It is oxidase-positive and confused with Moraxella/Neisseria. Identification can be made using automated systems like VITEK-2 GN, MALDI-ToF and DNA…
I regularly ask MoodleCloud members what provides more value to them. From a recent poll, I found that microbiologists preparing for the FRCPath exam using Microregistrar Moodle find the Quick revision summary helpful. All moodle chapters in the next few months will be updated with a quick revision note (yellow box). With this, it will…
Class: Cyclic lipopeptideSource: Streptomyces roseosporusDiscovered: 1980s; approved for use in 2003 (FDA)Molecular weight: 1620 DA. Mechanism of action: The Daptomycin (DAP) combines with Calcium ions to form a positively charged complex that attaches to the bacterial cell membrane (preferably at the nascent septa). This attachment depends upon the presence of phospholipid phosphatidylglycerol (PG). After attachment, DAP forms…
One of our registrars passed part 2 recently. I asked him about his preparation. He kindly shared with me some useful tips which may help anyone preparing for part 2. What did you read? What I read was a mix of Here are the links to the resources mentioned Mandell, Douglas, and Bennett’s Principles and…
Understanding Actinomyces: The Ray Fungus That’s Actually a Bacterium ⚠️ DISCLAIMER: This content is for academic and educational purposes only. Always consult current medical guidelines and seek professional medical advice for clinical decisions. 🦠 What is Actinomyces? + 🔬 Taxonomy Despite its name meaning “ray fungus,” Actinomyces is actually a bacteria that reproduces by binary…
