immune response
C1-C2Academic, Medical, Technical, Journalistic
Definition
Meaning
The reaction of the body's immune system to a harmful substance (antigen) such as a virus, bacteria, or allergen, involving the production of antibodies and specialized cells to fight it.
A broader metaphorical application referring to any defensive, protective, or resistant reaction by a system (e.g., a social, political, or technological system) against perceived threats, change, or external influence.
Linguistics
Semantic Notes
Typically used as a countable noun. In biology/medicine, it is a hypernym covering both 'innate' and 'adaptive' immune responses. In metaphorical use, it implies a reaction that is defensive, often automatic, and designed to neutralize a perceived threat.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Usage is identical in scientific contexts. Spelling of related words may differ (e.g., 'immunise' vs. 'immunize').
Connotations
Identical core connotations of biological defence. In political/social metaphor, both regions use it similarly to describe institutional or public resistance.
Frequency
Equally high frequency in medical/academic contexts in both regions. Slightly more common in US general media discourse on health.
Vocabulary
Collocations
Grammar
Valency Patterns
The [noun] triggers an immune response.The body mounts an immune response against [pathogen].An immune response to [antigen] was observed.[Subject] exhibits a strong immune response.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “The body's first line of defence”
Usage
Context Usage
Business
Metaphorical: 'The corporate culture had an immune response to the proposed merger, rejecting it outright.'
Academic
Literal: 'The study measured the cytokine profile of the adaptive immune response.'
Everyday
Simplified: 'The fever is part of your body's immune response to the infection.'
Technical
Detailed: 'The TH1-mediated immune response is critical for intracellular pathogen clearance.'
Examples
By Part of Speech
verb
British English
- The body immunises itself by mounting a response.
- The vaccine is designed to prime the system to respond immunologically.
American English
- The body immunizes itself by mounting a response.
- The vaccine triggers the body to mount an immunological defense.
adverb
British English
- The system reacted immunologically to the challenge.
American English
- The system reacted immunologically to the challenge.
adjective
British English
- The immunising response was robust.
- They studied the immune-responsive cells.
American English
- The immunizing response was robust.
- They studied the immune-responsive cells.
Examples
By CEFR Level
- When you have a cold, your immune response makes you feel ill.
- Vaccines work by teaching your body's immune response to recognise a virus.
- An overactive immune response can sometimes attack the body's own tissues, causing autoimmune diseases.
- The novel adjuvant was crucial for eliciting a durable and broad-spectrum adaptive immune response against the variant strain.
Learning
Memory Aids
Mnemonic
Imagine your body is a castle (IMMUNE). An invading germ is the enemy. The RESPONSE is the army of knights (white blood cells) and archers (antibodies) rushing to defend the castle walls.
Conceptual Metaphor
THE BODY IS A FORTRESS; DEFENCE IS WAR. Pathogens are invaders; immune cells are soldiers; the response is a military counterattack.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calque 'иммунный ответ' in non-biological contexts, as it may sound odd. In Russian, the phrase is highly specific to biology.
- Do not confuse with 'реакция иммунитета' – 'immune response' is the fixed term.
- In metaphorical use, consider more natural Russian metaphors like 'защитная реакция системы'.
Common Mistakes
- Using it as an uncountable noun (e.g., 'The vaccine caused strong immune response.') – requires an article 'an'.
- Confusing 'immune response' (process) with 'immunity' (state).
- Misspelling as 'imune response'.
- In metaphorical use, applying it to a person's emotional reaction, which is less idiomatic than applying it to systems or groups.
Practice
Quiz
Which of the following best describes the 'innate immune response'?
FAQ
Frequently Asked Questions
Inflammation is one specific type of immune response, characterised by redness, heat, swelling, and pain. An immune response is a broader term that includes inflammation but also other processes like antibody production and cell-mediated killing.
Yes, it is commonly used as a metaphor. For example, 'The conservative institution had an immune response to radical new ideas,' meaning it automatically rejected them as a threat.
Not always. While it is essential for fighting infections, an excessive or misdirected immune response can cause allergies, autoimmune diseases, or cytokine storms, which are harmful.
The two main types are 1) the innate immune response (immediate, non-specific), and 2) the adaptive (or acquired) immune response (slower, highly specific, and has memory).