The venereal disease research laboratory (VDRL) test is a nonspecific microflocculation test for the screening of syphilis. It uses antigen-containing cardiolipin, lecithin, and cholesterol and...
Category: Bacteriology
Chlamydia trachomatis, an obligate intracellular bacteria, causes significant infection and disease worldwide. It is the most common sexually transmitted bacterial pathogen and a major cause of...
Shigellae are Gram-negative, non-motile, non-spore-forming, rod-shaped highly infectious bacteria of the Enterobacteriaceae family. Shigella species include; Shigella sonnei, S....
Campylobacter usually causes diarrhea (often bloody). It is the most common cause of gastroenteritis worldwide, enterocolitis, especially in children. It causes systemic infection (rarely) in...
Streptococcus pneumoniae strains are sensitive to the chemical optochin (ethylhydrocupreine hydrochloride). Optochin sensitivity allows for the presumptive identification of alpha-hemolytic...
The bile (sodium deoxycholate) solubility test distinguishes Streptococcus pneumoniae from all other alpha-hemolytic streptococci. Streptococcus pneumoniae is bile soluble, whereas all other...