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 …

Apr 3, 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:

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

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.

Definition of contagious adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Jan 20, 2026 · Adjective contagious (comparative more contagious, superlative most contagious) (of a disease) Easily transmitted to others.

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 …

Contagious, infectious are usually distinguished in technical medical use. Contagious, literally "communicable by contact,'' describes a very easily transmitted disease as influenza or the common …

I have a cold and I'm still contagious. I'm sick, but the doctor says I'm not contagious.