Anything contagious, such as the flu, is always automatically infectious: if you can catch it from someone, it's being passed to you via an infectious agent, which is the thing that gets you …

CONTAGIOUS definition: capable of being transmitted by bodily contact with an infected person or object. See examples of contagious used in a sentence.

Jan 16, 2026 · This page details respiratory illnesses from bacteria and viruses other than COVID-19, flu, and RSV. It also shows the latest emergency department trends for conditions that various …

A contagious disease can be caught by touching someone who has the disease or by touching an infected object, or by an infected person coughing, sneezing, etc. near you:

You should probably postpone dinner if your date's cold is contagious — that means it's easily spread and likely to get you sick. Contagious actually evolved from contagio, the Latin phrase for “contact."

Definition of contagious adjective from the Oxford Advanced Learner's Dictionary. a contagious disease spreads by close contact between people. Scarlet fever is highly contagious. (figurative) His …

A feeling or attitude that is contagious spreads quickly among a group of people. Laughing is contagious. Antonio has a contagious enthusiasm for the beautiful aspect of food.

A contagious disease is an infectious disease that can be spread rapidly in several ways, including direct contact, indirect contact, and droplet contact. [1][2]

Contagious refers to a disease or condition that can be easily spread from one person to another through direct or indirect contact. It can also refer to a behavior, emotion, or situation that is likely to …

3 days ago · Adjective contagious (comparative more contagious, superlative most contagious) (of a disease) Easily transmitted to others.