GOD'S WORD® Translation
Simon's mother-in-law was in bed with a fever. The first thing they did was to tell Jesus about her.

American Standard Version
Now Simon's wife's mother lay sick of a fever; and straightway they tell him of her:

Berean Study Bible
Simon’s mother-in-law was sick in bed with a fever, and they promptly told Jesus about her.

Douay-Rheims Bible
And Simon's wife's mother lay in a fit of a fever: and forthwith they tell him of her.

English Revised Version
Now Simon's wife's mother lay sick of a fever; and straightway they tell him of her:

King James Bible
But Simon's wife's mother lay sick of a fever, and anon they tell him of her.

World English Bible
Now Simon's wife's mother lay sick with a fever, and immediately they told him about her.

Young's Literal Translation
and the mother-in-law of Simon was lying fevered, and immediately they tell him about her,

Mark 1:30 Additional Translations ...