Also means
to spread (enthusiasm)
Usage Note
Contagiar covers both literal infection and figurative spread — me contagió su alegría means 'her joy was contagious'. The reflexive contagiarse means 'to catch (an illness)'. The related noun is contagio (contagion, infection).
Examples
"Puede contagiar el virus fácilmente."
Natural Translation
It can spread the virus easily.

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