An 18-year-old woman complains of pains in her lower abdomen, purulent discharge from the vagina, temperature rise up to 37,8°C. Anamnesis states that she had random sexual contact the day before the signs appeared. She was diagnosed with acute bilateral adnexitis. On additional examination: leukocytes in the all field of vision, bacteria, diplococci with intracellular and extracellular position. What agent is most likely in the given case?