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  2. Bloodstream infection - Wikipedia

    en.wikipedia.org/wiki/Bloodstream_infection

    Gram positive bacteria are an increasingly important cause of bacteremia. [13] Staphylococcus, streptococcus, and enterococcus species are the most important and most common species of gram-positive bacteria that can enter the bloodstream. These bacteria are normally found on the skin or in the gastrointestinal tract. [citation needed]

  3. Group A streptococcal infection - Wikipedia

    en.wikipedia.org/wiki/Group_A_streptococcal...

    A Gram stain is performed to show Gram-positive cocci in chains. Then, the organism is cultured on blood agar. The rapid pyrrolidonyl arylamidase (PYR) test is commonly used, wherein a positive reaction confers a presumptive identification of group A beta-hemolytic streptococci if the appearance and clinical context is consistent.

  4. Gram-positive bacteria - Wikipedia

    en.wikipedia.org/wiki/Gram-positive_bacteria

    In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall. The Gram stain is used by microbiologists to place bacteria into two main categories, Gram-positive (+) and Gram ...

  5. Treatment of infections after exposure to ionizing radiation

    en.wikipedia.org/wiki/Treatment_of_infections...

    The organisms causing endogenous infections are generally gram negative bacilli such as Enterobacteriaceae (i.e. Escherichia coli, Klebsiella pneumoniae, Proteus spp. ), and Pseudomonas aeruginosa. Exposure to higher doses of radiation is associated with systemic anaerobic infections due to gram negative bacilli and gram positive cocci. Fungal ...

  6. Anaerobic infection - Wikipedia

    en.wikipedia.org/wiki/Anaerobic_infection

    Penicillin can be added to clindamycin to supplement its coverage against Peptostreptococcus spp. and other Gram-positive anaerobic organisms. [53] Doxycycline is added to most regimens in the treatment of pelvic infections to cover chlamydia and mycoplasma. Penicillin is effective for bacteremia caused by non-beta lactamase producing bacteria.

  7. Enterococcus casseliflavus - Wikipedia

    en.wikipedia.org/wiki/Enterococcus_casseliflavus

    Enterococcus casseliflavus is a species of commensal Gram-positive bacteria. Its name derived from the "flavus" the Latin word for yellow due to the bright yellow pigment that it produces. [2] This organism can be found in the gastrointestinal tract of humans [3] The most common form of E. casseliflavus infection is bacteremia. [4]

  8. Oritavancin - Wikipedia

    en.wikipedia.org/wiki/Oritavancin

    Oritavancin, sold under the brand name Orbactiv (by Melinta Therapeutics) among others, is a semisynthetic glycopeptide antibiotic medication for the treatment of serious Gram-positive bacterial infections. Its chemical structure as a lipoglycopeptide is similar to vancomycin. [5]

  9. Arcanobacterium haemolyticum - Wikipedia

    en.wikipedia.org/wiki/Arcanobacterium_haemolyticum

    Arcanobacterium haemolyticum is a species of bacteria classified as a gram-positive bacillus. It is catalase-negative, facultative anaerobic, beta-hemolytic, and not motile. [1] It has been known to cause head and neck infections, pharyngitis, and sinusitis (Arcanobacterium haemolyticum infections). [1]