How to Say "to infect" in Spanish
The Spanish word for “to infect” is “pegar” — B1 level.
English → SpanishB1
verbB1
transmitting a disease

Examples
No te acerques, no quiero pegarte la tos.
Don't come near, I don't want to give you (infect you with) the cough.
Esa canción pegó muy fuerte el año pasado.
That song became very popular (caught on) last year. (Informal)
Su mala suerte se me pegó.
His bad luck rubbed off on me (stuck to me).
Using 'Se pegar'
When talking about catching a disease or a habit, you often use the verb reflexively ('pegarse') to show that the thing stuck to you: 'Se me pegó el resfriado' (The cold stuck to me / I caught the cold).
Related Translations
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