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• An infection or cancer that occurs in persons with weak immune systems due to HIV, cancer, or immunosuppressive drugs such as corticosteroids or chemotherapy. Examples include Kaposi's Sarcoma (KS); Pneumocystis jiroveci pneumonia (PCP); cryptosporidiosis; histoplasmosis; toxoplasmosis; other parasitic, viral, and fungal infections; and some types of cancers.

  HIV/AIDS Bureau - Cite This Source - This Definition
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  Cite Definition for Opportunistic Infection (OI) or Opportunistic Condition

  American Psychological Association (APA)

  Opportunistic Infection (OI) or Opportunistic Condition. (n.d.). HRSA HAB Glossary of Terms. Retrieved December 1, 2022, from website: http://www.expertglossary.com/definition/opportunistic-infection-oi-or-opportunistic-condition.

  Chicago Manual of Style (CMS)

  Opportunistic Infection (OI) or Opportunistic Condition. hab.hrsa.gov. HRSA HAB Glossary of Terms. HIV/AIDS Bureau. http://www.expertglossary.com/definition/opportunistic-infection-oi-or-opportunistic-condition (accessed: December 1, 2022).

  Modern Language Association (MLA)

  "Opportunistic Infection (OI) or Opportunistic Condition." HRSA HAB Glossary of Terms. HIV/AIDS Bureau. 1 December. 2022 http://www.expertglossary.com/definition/opportunistic-infection-oi-or-opportunistic-condition.

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