contagious
US /kənˈteɪ.dʒəs/
UK /kənˈteɪ.dʒəs/

1.
ansteckend
describing a disease that can be spread from one person or organism to another by direct or indirect contact
:
•
The flu is highly contagious.
Die Grippe ist sehr ansteckend.
•
Measles is a highly contagious viral disease.
Masern ist eine hoch ansteckende Viruserkrankung.
2.
ansteckend
describing an emotion or attitude that spreads quickly to others
:
•
Her enthusiasm was contagious.
Ihr Enthusiasmus war ansteckend.
•
His laughter was so contagious that soon everyone in the room was smiling.
Sein Lachen war so ansteckend, dass bald jeder im Raum lächelte.