• Lisa Anderson, RN, BSN
  • Curtisha Charles
  • Julius Esguerra

(410) 550-9080




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Vaginal Microbiome Study


You are eligible to participate in the research study, if you are an English-speaking woman between the ages of 18 and 35, who:

  • Has had 1 or more episodes of Bacterial Vaginosis (BV) in the last year
  • Is starting or stopping Hormonal Contraception (for example birth control pills, vaginal hormonal rings, implants, IUDs or Depo Provera shots) soon
  • Has her uterus and does not have any devices implanted there
  • Does not have diabetes mellitus or HIV
  • Is not pregnant
  • Does not have a history of issues with her monthly hormonal cycles
  • Does not have a history of thromboembolism or liver disease or another medical reason not to start Hormonal Contraception


You may enroll at selected Johns Hopkins facilities or the Baltimore City Health Department Clinics.

In addition to the enrollment visit, we will ask you to see us for follow-up visits four more times over the next year. These visits will take about 30 minutes and will be at the Bayview campus.

At each visit, you will be asked to complete questionnaires involving general, oral and reproductive health information. You will also be asked to provide vaginal swabs, blood and urine samples.

During the two weeks before each visit, you will be asked to complete a daily diary and collect vaginal swabs four times.

You will receive $50 for each visit that you complete, including the enrollment visit.


For more information or to enroll in this research study (Recurrent Bacterial Vaginosis: Microbiota Responses to Hormonal Contraception IRB00114619), please contact us at 443-909-6954. You can also email us at The Principal Investigator for this research study is Dr. Susan Tuddenham.