Officials at the agency said they presumed that the dentist's blood had gone directly into the patient's open wound or had somehow contaminated the instruments used in the procedure.

Her parents insist on returning Sammy, fearing he is somehow contaminated and a danger to people.

Mr. Munshun recoils in loathing from the suggestion of d'yamba that has somehow contaminated this otherwise delightful scene.

It's always possible that you were somehow contaminated without knowing it.

Maybe Patel had somehow contaminated the data--although with her reputation, it seemed highly unlikely.

He said evidence suggested that the sample had somehow contaminated an air filter from a Pentagon shipping center that had been sent to the laboratory for routine testing last Thursday.

If the Sharnhaishians hadn't somehow contaminated your world, you never would have come up with gunpowder at all.

But the scientists dismissed its importance, suggesting that it was a harmless organism that had somehow contaminated laboratory samples.

He hadn't considered that complication before allowing Gary to work on the tire and now he was unsure whether allowing him to handle it had somehow contaminated the tool.

Maybe it was a hoax (the threatening letter arrived on April Fools' Day); could be the test vials were somehow contaminated.