In formal poetry, rhyme scheme rhyme scheme and meter define different types of quatrain. 1  There are many types of quatrain, but the most common types include: 2  Ballad Stanza â Its rhyme scheme is abab with iambic tetrameter. 3  Envelope Stanza â Its rhyme scheme is abba with iambic tetrameter. 4  Goethe Stanza â Its rhyme scheme is abab but no meter.
The six most common types of vaginitis are: 1  Candida or yeast infections. 2  Bacterial vaginosis. 3  Trichomoniasis vaginitis.  Chlamydia 1  vaginitis. Viral vaginitis.  Non-infectious vaginitis.
Causes and symptoms. Bacteria that dominate the vaginal flora in a BV infection include Gardnerella vaginalis or Mobiluncus, although other bacteria, such as Escherichia coli from the rectum have also been shown to cause the disease.acterial infection of the vagina. While bacterial vaginosis is classically caused by Gardnerella vaginalis (a gram-variable facultatively anaerobic rod), it is usually polymicrobial.