1. During a routine visit with the gynecologist, a 60-year-old woman complained of vaginal dryness and soreness. During the examination, the health-care provider noted erythema of the vaginal mucosa. The pH of the vaginal secretions was 6.0. The KOH and amine (Whiff) tests were negative. The microscopic examination revealed epithelial cells, basal cells, decreased lactobacilli, and increased gram-positive cocci and gram-negative rods.

a. What is the name of this condition?

b. Explain how this condition can occur.

c. What is the treatment for this condition?