Poll:
Loading ...Bacterial Determination
aerobes alpha-hemolytic anaerobes biofilm catalase-negative catalase-positive coagulase-negative cocci coccobacilli coryneform diphteroid diplococci DNAse-negative fastidious glucose-fermenter gram-negative gram-positive indole-negative indole-positive lactose-negative lactose-positive microaerophilic mucoid non-fermenter non-motile non-pathogenic novobiocin-resistant ODC-positive oxidase-negative oxidase-positive rods swarming urease-negative urease-positiveBacteria
acinetobacter bacillus bacteroides bartonella borrelia brucella Burkholderia campylobacter capnocytophaga chlamydophila chromobacterium citrobacter clostridium Corynebacterium cronobacter ehrlichia enterobacter Enterobacteriaciae enterococcus Erysipelothrix Francisella fusobacterium haemophilus hafnia Helicobacter klebsiella Lactobacillus legionella leptospira leuconostoc Listeria micrococcus moraxella morganella mycobacteria mycoplasma Neisseria nocardia pasteurella plesiomonas pneumococcus proteus providencia pseudomonas raoultella rhodococcus rickettsia Rothia Salmonella serratia shigella Staphylococcus stenotrophomonas Streptococcus tropheryma Veillonella vibrioTags Infectiology
abortion abscess - amebic abscess - brain abscess - dental abscess - intraperitoneal abscess - liver abscess - lung abscess - pericardial abscess - splenic abscess - subphrenic acyclovir ADC Adenovirus AF - elevated AFP Africa AHF alcoholism Ambler aminoglycosides amnionitits amoxicillin amoxicillin-clavulanate ampicillin anemia anemia - hemolytic aneurysm aortae anorexia antibiotic aortitis aphasia ARDS Argyll Robertson arhtritis arrhythmia arthralgia arthritis arthritis - septic ascites Asia ATM atypical pneumonia babesiosis bacillary angiomatosis bacteremia betalactam BKVN botryomycosis bronchitis brucellosis california encephalitis cancer cancer - gastric cardiac enzymes catheter-related infection cat scratch disease cefotaxim cefoxitin ceftriaxon cefuroxim cellulitis cephalosporin cerebrospinal shunts cervicitis chancre Chikungunya chloramphenicol ciprofloxacin claritromycin classification clavulanate clindamycin clinical syndrome CNS condylomata confusion conjunctivitis consciousness convulsion COPD - exacerbation corneal ulcer cotrimoxazol cough cryptosporidiose CSD csf CSF - elevated lymphocytes CSF - elevated protein cystic fibrosis daptomycin dengue DFHS diabetes insipidus diagnosis diarrhea diarrhea - acute differential differential diagnosis disease dog-biteSearch posts
Author Archives: admin
Flucloxacillin
Flucloxacillin is one of the isoxazolyl penicillins. The isoxazolyl penicillins are resistant to staphylococcal penicillinase and can be administered orally.
Flucloxacillin is active against:
- Staphylococcus aureus
- CNS (coagulase-negative staphylococci, PBP2a-negative)
- Streptococcus pyogenes (GAS)
- Streptococcus pneumoniae
- Viridans group streptococci
- Neisseria spp
Flucloxacillin is not active against:
Posted in Microbiology
Leave a comment
Pseudomonas stutzeri
Pseudomonas stutzeri is a gram-negative, motile, single polar-flagellated rod. Colonies of P. stutzeri have a delicate wrinkled appearance similar to B. pseudomallei.
Pseudomonas stutzeri group consists of:
- P. stutzeri
- P. balearica
- P. luteola
Colony picture of P. stutzeri:
Simplified antibiogram of the same isolate:
Posted in Bacteriology, Microbiology
Leave a comment
Cotrimoxazole
Cotrimoxazole consists of:
- trimethoprim (2,4-diamino-5-(3,4,5,-trimethoxybenzyl)-pyrimidine
- sulfamethoxazole
Cotrimoxazole is active against against numerous bacteria, although susceptibility may depend on the availability of folates in the local environment. Cotrimoxazole is also active against Pneumocystis jirovecii and Toxoplasma gondii. Trimethoprim is active against Falciparum spp.
Susceptible bacteria are:
- Staphylococcus aureus
Posted in Infectiology, Microbiology
Leave a comment
Cytomegalovirus
CMV reactivates in approximately 40% and HSV in approximately 50% of patients admitted to the ICU (Pubmed). CMV reactivation was related to adverse outcomes. This study, like many others was unsuitable to assess the causality of these phenomena. Viral reactivation could be a marker or a cause of adverse events.
Posted in Microbiology, Virology
Leave a comment
Meropenem
Meropenem has activity against:
- gram-positive bacteria
- Staphylococcus aureus
- Coagulase-negative staphylococci (methicillin susceptible)
- Streptococcus pyogenes
- Streptococcus agalactiae
- Streptococcus pneumoniae (PS)
- Streptococcus pneumoniae (PI)
- Streptococcus pneumoniae (PR)
- Viridans group streptococci
- Enterococcus faecalis
- Listeria monocytogenes
- Erysipelothrix ruhusiopathiae
- Corynebacterium spp (except C. jeikeium)
Posted in Infectiology, Microbiology
Leave a comment
Aminoglycosides and Enterococci
E. faecalis is moderately resistant to gentamycin (MIC 5.0-125 μg/ml). Penicillin + gentamicin usually have synergystic efficay against E. faecalis as does penicillin + streptomycin but this last combination is effective against a smaller fraction of strains. Penicillin + tobramycin combination is usually synergistic in a similar fashion to gentamicin. E. faecalis that are resistant to penicillin + gentamicin due to a defective uptake of gentamicin may remain susceptible to penicillin + tobramycin synergy.
Posted in Bacteriology, Microbiology
Leave a comment
Zygomycetes
Zygomycetes are a class of monomorphics, that have broad hyphae (6-15 μm) and are almost nonseptate. Septa are most often seen on sporangiophores near the sporangia, and in older cultures. Mucorales are the most often encountered zygomycetes and are easily identified by their rapid, very fluffy growth filling tubes or petri plates.
Posted in Microbiology, Mycology
Leave a comment
Prosthetic joint infection
Surgical replacement of arthritic joints by prosthetic ones are common for hips, knees, shoulders and elbows. Of the implanted joint, 1-5% become infected (Mandell, 5th). The most common bacteria isolated from infected prosthetic joints are:
- Staphylococci, 44%
- Coagulase-negative staphylococci, 22%
- Staphylococcus aureus, 22%
- Gram-negative aerobic bacteria, 25%
Posted in Infectiology, Microbiology
Leave a comment