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  2. Group A streptococcal infection - Wikipedia

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

    Diagnosis is by a swab of the affected area for laboratory testing. 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 ...

  3. Group B streptococcal infection - Wikipedia

    en.wikipedia.org/wiki/Group_B_streptococcal...

    Penicillin-allergic women without a history of anaphylaxis (angioedema, respiratory distress, or urticaria) following administration of a penicillin or a cephalosporin (low risk of anaphylaxis) could receive cefazolin (2 g IV initial dose, then 1 g IV every 8 hours until delivery) instead of penicillin or ampicillin.

  4. Gram stain - Wikipedia

    en.wikipedia.org/wiki/Gram_stain

    A Gram stain of mixed Staphylococcus aureus (S. aureus ATCC 25923, gram-positive cocci, in purple) and Escherichia coli (E. coli ATCC 11775, gram-negative bacilli, in red), the most common Gram stain reference bacteria. Gram stain (Gram staining or Gram's method), is a method of staining used to classify bacterial species into two large groups ...

  5. Streptococcus agalactiae - Wikipedia

    en.wikipedia.org/wiki/Streptococcus_agalactiae

    The culture-based screening approach identifies candidates to receive IAP using lower vaginal and rectal cultures obtained between 36 and 37 weeks' gestation [30] [31] (32–34 weeks of gestation for women with twins [41]) and IAP is administered to all GBS colonized women. The risk-based strategy identifies candidates to receive IAP by the ...

  6. Gardnerella vaginalis - Wikipedia

    en.wikipedia.org/wiki/Gardnerella_vaginalis

    Gram stain of cells from the vagina (the same magnification) with normal bacterial flora (top) and the bacteria that cause vaginosis (bottom). A variety of diagnosis techniques are currently available for identifying Gardnerella vaginalis such as the OSOM BV Blue assay, FemExam cards and nucleic acid amplification tests (NAATs), resulting in the determination of ongoing BV.

  7. Gram-positive bacteria - Wikipedia

    en.wikipedia.org/wiki/Gram-positive_bacteria

    Both gram-positive and gram-negative bacteria commonly have a surface layer called an S-layer. In gram-positive bacteria, the S-layer is attached to the peptidoglycan layer. Gram-negative bacteria's S-layer is attached directly to the outer membrane. Specific to gram-positive bacteria is the presence of teichoic acids in the cell wall. Some of ...

  8. ‘My Low Back Pain Turned Out To Be A Rare Inflammatory ...

    www.aol.com/low-back-pain-turned-rare-120000344.html

    Symptoms typically begin in early adulthood, with back pain, stiffness in the lower back, neck pain, and fatigue being common ones. Steff received an official diagnosis of ankylosing spondylitis ...

  9. Staining - Wikipedia

    en.wikipedia.org/wiki/Staining

    A Ziehl–Neelsen stain is an acid-fast stain used to stain species of Mycobacterium tuberculosis that do not stain with the standard laboratory staining procedures such as Gram staining. This stain is performed through the use of both red coloured carbol fuchsin that stains the bacteria and a counter stain such as methylene blue.

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