Please select the eligibility criteria that correspond to the clinical trial below.
Title: NIMH Collaborative HIV/STD Prevention Trial
Brief Summary: This study will evaluate the effectiveness of a community-level HIV prevention program in promoting safer sexual behaviors and reducing the transmission of HIV/sexually transmitted diseases among at-risk populations in China, India, Peru, Russia, and Zimbabwe.


Options:
A: Inclusion Criteria:

* Either lives, works, or socializes in the selected venues
* Plans to remain in the venue for at least 1 year after study entry

Exclusion Criteria:

* Permanent disability that hinders participation (e.g. deaf, mental retardation)
* Reports no sex in the 6 months before study entry (China, Peru)
* No STDs present at study entry (China)
* Enrolled in final year of school at time of recruitment (Russia)
* Has lived in venue for less than 2 years (Zimbabwe)
* Lives in venue for less than 9 months out of a year (Zimbabwe)
B: Inclusion Criteria:

* Aged 14 years and over on 1st Jan 1999
* About to enter year 5, 6 or 7 of a primary school in one of the 20 trial communities

Exclusion Criteria:

\* Parent/guardian and/or young person unable or unwilling to give informed consent
C: Inclusion Criteria:

* Female
* African American
* Ages 15-21
* Receiving care at participating clinic
* Vaginal sex in the past 60 days
* Ability to give written informed consent

Exclusion Criteria:

* Married
* Pregnant
* In a detention center
D: Inclusion Criteria:

* Age 18 to 49 years old
* Sexually active (coital frequency at least four times per month on average)
* HIV negative based on testing within two weeks prior to enrollment
* Chlamydia trachomatis and Neisseria gonorrhoeae negative based on testing within 30 days prior to enrollment or if positive, completes treatment before enrollment
* Have a healthy cervix, as assessed by naked-eye speculum exam at enrollment
* Planning to live in the study area for the next 24 months
* Willing to be randomly assigned either to use or not use a latex diaphragm with lubricant gel during participation in the study, and to follow the protocol, including being tested for HIV and STIs
* Willing and able to give informed consent

Exclusion Criteria:

* Known sensitivity or allergy to latex
* History of TSS (as suggested by current labeling for diaphragm use)
* Currently pregnant, or desiring to become pregnant in the next two years
* No cervix (total hysterectomy)
* Refuses treatment for diagnosed or suspected current STI and/or reproductive tract infection requiring treatment at enrollment
* Within six weeks of any pelvic surgery or last pregnancy outcome at the time of screening and enrollment
* Presence of clinically apparent lesion(s) with epithelial disruption at enrollment (may enroll after lesion(s) has healed, if otherwise eligible)
* Injected illicit drugs in the 12 months prior to screening and enrollment
* Blood transfusion or received blood products in 3 months prior to screening and enrollment
* Unable or unwilling to insert the diaphragm correctly
* Participation in any other clinical trial (including those of a vaginal product or barrier contraceptive). Verification by comparing participant lists to other concurrently running research studies may be conducted if necessary.
* Unable to speak English, Zulu, Shona, or Sotho
* Other conditions that, in the opinion of the investigator, would constitute contraindications to participation in the study or would compromise ability to comply with the study protocol, such as a major psychiatric disorder

Answer: A