acquired immune deficiency syndrome
C1/C2Formal, Technical, Medical, Academic
Definition
Meaning
A serious, often fatal disease of the immune system caused by the HIV virus, transmitted through blood and sexual contact.
The advanced stage of HIV infection, characterized by a severely weakened immune system that fails to protect against opportunistic infections and certain cancers.
Linguistics
Semantic Notes
Always refers to the disease condition, not just the presence of the virus (HIV). The term is often shortened to the acronym 'AIDS'. It is a syndrome, meaning a collection of specific symptoms and conditions.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning. The acronym 'AIDS' is universally used.
Connotations
Identical serious, medical, and public health connotations in both varieties.
Frequency
The full term is used in formal/medical contexts; the acronym 'AIDS' dominates in general usage in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
Patient + develop/contract/have + AIDSAIDS + affect/ravage + population/countryHIV + lead to/cause + AIDSVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “The Grim Reaper (historical reference to AIDS epidemic)”
- “Silent epidemic”
Usage
Context Usage
Business
Rare, except in contexts like pharmaceutical R&D, healthcare funding, or corporate social responsibility reports.
Academic
Common in medical, biological, epidemiological, and public health research papers and textbooks.
Everyday
Used in news reports, public health campaigns, and general discussions about health, but often with sensitivity.
Technical
The standard medical term for the final stage of HIV infection, defined by specific clinical criteria (e.g., CD4 count < 200 cells/μL or specific opportunistic infections).
Examples
By Part of Speech
verb
British English
- The patient was diagnosed as having developed acquired immune deficiency syndrome.
- Researchers aim to stop HIV from progressing to AIDS.
American English
- The patient was diagnosed with having developed acquired immune deficiency syndrome.
- The goal is to prevent HIV from turning into full-blown AIDS.
adjective
British English
- AIDS-related illnesses can be devastating.
- The AIDS epidemic required a global response.
American English
- AIDS-related infections can be severe.
- The AIDS crisis demanded massive funding.
Examples
By CEFR Level
- AIDS is a very serious disease.
- Doctors work hard to help people with AIDS.
- Acquired immune deficiency syndrome, or AIDS, weakens the body's ability to fight illness.
- Many charities raise money for AIDS research.
- The development of effective antiretroviral drugs has transformed AIDS from a fatal diagnosis into a manageable chronic condition for many.
- Public health campaigns have been crucial in raising awareness about HIV and AIDS.
- The pathogenesis of acquired immune deficiency syndrome involves the depletion of CD4+ T lymphocytes, rendering the host susceptible to opportunistic infections.
- Socioeconomic factors are deeply intertwined with the prevalence and management of the AIDS epidemic in sub-Saharan Africa.
Learning
Memory Aids
Mnemonic
ACquired Immune Deficiency Syndrome: A Condition I Honestly Don't Spread (emphasizes it is acquired, not genetic, and involves immune deficiency).
Conceptual Metaphor
IMMUNE SYSTEM IS A DEFENSE FORTRESS (AIDS breaches and destroys the fortress).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating as 'СПИД синдром' (redundant as 'С' stands for 'синдром').
- Do not confuse with generic 'иммунодефицит' (immunodeficiency), which can be congenital.
Common Mistakes
- Saying 'AIDS virus' (it's HIV that causes AIDS).
- Using 'AIDS' to refer to someone who is HIV-positive but hasn't developed the syndrome.
- Incorrectly capitalising as 'A.I.D.S.'.
Practice
Quiz
What is the relationship between HIV and AIDS?
FAQ
Frequently Asked Questions
HIV (Human Immunodeficiency Virus) is the virus that attacks the immune system. AIDS (Acquired Immune Deficiency Syndrome) is the name for the collection of potentially life-threatening infections and illnesses that happen when your immune system has been severely damaged by the HIV virus.
People do not die from AIDS itself. They die from opportunistic infections or cancers that the body cannot fight off because AIDS has destroyed the immune system's ability to respond.
There is currently no cure for AIDS or for HIV infection. However, treatments with antiretroviral therapy (ART) can control the virus, prevent progression to AIDS, and allow people with HIV to live long and healthy lives.
The term 'acquired' distinguishes it from congenital (present from birth) immune deficiencies. It means the condition is not inherited but is 'acquired' or contracted during a person's lifetime through exposure to the HIV virus.
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