article_snippet: The cloudiness could be contamination by bacteria or some impurity, said Jay.
article_snippet: If the particles were big enough, the particles could clog blood vessels when injected or could lodge in the lungs, Jay said.
article_snippet: If it's a solution that's supposed to be clear
article_snippet: and it's not clear, it should never be injected,' Jay said. '
article_snippet: So they did the right thing by not injecting the right thing.'