Neisseria is the only pathogenic gram-negative cocci (precisely diplococci). Two species of Neisseria cause disease in humans; Neisseria meningitidis and Neisseria gonorrhoeae. Human beings are...
Month: June 2013
Neisseria meningitidis is the bacteria that causes meningitis, a severe infection of the meninges—the thin lining covering the brain and spinal cord. Meningitis can lead to severe illness and, if...
Syphilis is a sexually transmitted disease caused by the bacterium Treponema pallidum. Syphilis has diverse clinical manifestations and shares many clinical features with other treponemal and...
Fluorescent treponemal antibody-absorption (FTA-ABS) test is an indirect fluorescent antibody technique used as a confirmatory test for syphilis. FTA-ABS is the first serological test to become...
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...