contagiaremos
-we will transmit
The word contagiaremos is the future form of contagiar in the first person plural.
See the full contagiar conjugation

contagiar

Todos nos contagiaremos y estaremos todo el día en cama.
We're all gonna get it and stay in bed all day.
Si lo que tiene es infeccioso, todos nos contagiaremos.
If what that man has is infectious, then all of us'll have it.
Si lo que tiene es infeccioso, todos nos contagiaremos.
Now, if what that man has in the bus is infectious, then all of us will have it.
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