highly contagious
- adjective
- /ˈhaɪli kənˈteɪdʒəs/
- Bordetella pertussis and B. parapertussis commonly cause whooping cough, a highly contagious, acute coughing illness, in humans (1, 2).
- highly contagious disease
- highly contagious virus
It was highly contagious to humans from the start.
- It was highly contagious to humans from the start.
Examples
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Severe acute respiratory syndrome, or SARS, is a highly contagious respiratory illness that can cause severe illness and death.
Academic text (2006) -
During outbreaks, it is important to stay away from others if you have a highly contagious illness.
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During the third stage, the victim becomes highly contagious.
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It's highly contagious, and in some cases it can be fatal.
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Scientists have now given a name to this mysterious and highly contagious disease.
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The disease is highly contagious, and before preventive control, it spread rapidly through the population.
Academic text (1996) -
Rotavirus is highly contagious and is a major cause of childhood illness, hospitalizations, and even death.
Academic text (2002) -
Brucellosis is a highly contagious zoonosis caused by ingestion of unsterilized milk or meat from infected cows or close contact with their secretions.
Academic text (2012) -
Measles is a highly contagious disease that spreads easily among groups of children.
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The doctor warned that the flu is highly contagious and can quickly infect others in close contact.
Synonyms
Something that spreads from one person to another, like a disease or feeling
A feeling or disease that spreads quickly to other people
Able to pass from one person to another and cause sickness
Able to pass from one person or animal to another by infection
Able to pass from one person or animal to another
Able to make people sick and spread disease
Very likely to make people sick
Able to spread from one person to another, like a cold
Antonyms
How Contagious
Surface Forms
Morphology
The meaning is directly and compositionally derived from 'highly' (an intensifier meaning 'extremely') plus 'contagious' (capable of being spread), so a learner who knows both words can infer 'very easily spread'. This intensifier + adjective pattern is common and cross-linguistically transparent, making it immediately understandable to a B1 learner.
Etymology
Highly contagious paints a simple picture: a sick person coughing, touching or sneezing and the illness quickly jumping from one person to another. Highly means 'very' and contagious points to catching a disease by contact, so the phrase means 'very easy to spread'.