Please select the eligibility criteria that correspond to the clinical trial below.
Title: The Natural History of Community-Associated Methicillin-Resistant Staphylococcus Aureus (CA-MRSA) Infections and an Evaluation of Decolonization Strategies
Brief Summary: The purpose of this study is to determine the natural history of community-associated Staphylococcus aureus infections in both adult and pediatric patients by monitoring the rate of recurrent infections in those colonized with S. aureus.

In addition, this study will evaluate the efficiency of commonly prescribed decolonization measures in patients presenting with S. aureus skin and soft tissue infections.


Options:
A: Inclusion Criteria:

Patients eligible for participation include those who are currently enrolled in the lymphedema treatment program in Leogane who 1) have been trained in the techniques of self-care, 2) who live in a 10-km radius of the hospital, and 3) for whom we have adequate data on incidence of acute bacterial infections, risk factors for infection, and ability to comply with the treatment protocol (particularly hygiene).

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Exclusion Criteria: Don't meet inclusion criteria.

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B: Inclusion Criteria:

* Patients hospitalised with CAP or cSSSI

  1. CAP: Radiographically-confirmed bacterial pneumonia AND Requiring treatment with IV antimicrobials as start-up therapy
  2. cSSSI: Affecting deeper soft tissue and/or requiring significant surgical intervention or developing an abcess/ulcer/cellulitis in a lower limb AND Having at least two local signs and one systemic sign of cSSS AND Treatment with antimicrobials

Exclusion Criteria:

* Patients already participating in clinical trials or any other interventional study.

  1. CAP: CAP suitable for outpatient therapy with an oral antimicrobial agent.
  2. cSSSI: Uncomplicated SSSI. Skin and skin-structure infections with a high cure rate after surgical incision alone or after aggressive local skin care.
C: Inclusion Criteria:

Participants were included in the study if they met all of the following inclusion criteria:

1. Males or females ≥18 years old
2. Diagnosis of ABSSSI suspected or confirmed to be caused by a gram-positive pathogen requiring at least 7 days of IV therapy
3. An ABSSSI included 1 of the following infections: wound infections, cellulitis/erysipelas, major cutaneous abscess
4. ABSSSI must have presented with at least 2 local signs and symptoms and at least 1 sign of systemic inflammation (unless \>70 years of age).
5. Able to give informed consent and willing to comply with all required study procedures

Exclusion Criteria:

Participants were excluded from the study if any of the following exclusion criteria applied prior to randomization:

1. Prior systemic or topical antibacterial therapy with activity against suspected or proven gram-positive pathogens within the preceding 14 days unless:

   * The causative gram-positive pathogen(s) isolated from the ABSSSI site was/were resistant in vitro to the antibacterial(s) that was/were administered with documented clinical progression.
   * Documented failure to previous ABSSSI antibiotic therapy was available. Documentation of treatment failure must have been recorded.
   * Participant received a single dose of a short-acting antibacterial therapy 3 or more days before randomization.
2. Infections associated with, or in close proximity to, a prosthetic device
3. Severe sepsis or refractory shock
4. Known or suspected bacteremia at time of Screening
5. ABSSSI due to or associated with any of the following:

   * Infections suspected or documented to be caused by gram-negative pathogens
   * Wound infections (surgical or traumatic) and abscesses with only gram-negative pathogens
   * Diabetic foot infections
   * Concomitant infection at another site not including a secondary ABSSSI lesion
   * Infected burns
   * A primary infection secondary to a pre-existing skin disease with associated inflammatory changes
   * Decubitus or chronic skin ulcer, or ischemic ulcer due to peripheral vascular disease
   * Any evolving necrotizing process gangrene or infection suspected or proven to be caused by Clostridium species
   * Infections known to be caused by a gram-positive organism with a vancomycin minimum inhibitory concentration \>2 micrograms/milliliter or clinically failing prior therapy with glycopeptides
   * Catheter site infections
6. Allergy or intolerance to aztreonam or metronidazole in a participant with suspected or proven polymicrobial wound infection involving gram-negative and/or anaerobic bacteria
7. Was currently receiving chronic systemic immunosuppressive therapy
8. Acquired immunodeficiency syndrome with cluster of differentiation 4 count \<200 cells/cubic millimeter
9. Neutropenia
10. Significant or life-threatening condition that would confound or interfere with the assessment of the ABSSSI
11. Women who were pregnant or nursing
12. History of immune-related hypersensitivity reaction to glycopeptides
13. Participants that required anticoagulant monitoring with an activated partial thromboplastin time
14. Contraindication to vancomycin
15. Participants unwilling to forego blood and/or blood product donation
16. Treatment with investigational medicinal product within 30 days before enrollment and for the duration of the study
17. Investigational device present, or removed \<30 days before enrollment, or presence of device-related infection
18. Participants unlikely to adhere to the protocol, comply with study drug administration, or complete the clinical study
19. Severe hepatic disease
20. Presence of hyperuricemia
21. Unwilling to refrain from chronic use of any medication with antipyretic properties
D: Inclusion Criteria:

* Any patient who presents with at least one serious skin or soft tissue infection requiring incision and drainage at an affiliated institution or clinic in the St. Louis metropolitan area

Exclusion Criteria:

* Patients with permanent indwelling catheters or percutaneous medical devices
* Patients with a history of dialysis treatments, long term care facility admission, or presents with a surgical wound infection within the past year
* Patients who are pregnant

Answer: D