Researchers who met there said they anticipated no quick breakthroughs in treatment or vaccines against the virus.

If anyone could make a quick breakthrough, it'd be Ward.

The quick breakthrough threatened huge Allied supply dumps and even the port of Antwerp.

Notts resumed on 278 for five and Somerset have made a couple of quick breakthroughs with the new ball.

No one was predicting any quick breakthroughs.

Napoleon knew that he had sustained high losses during the evening attacks and that he had failed in his attempt at a quick breakthrough.

Lower-level meetings in the following weeks, however, failed to produce any quick breakthrough.

Federal officials said they foresaw no quick breakthroughs and were preparing for a long investigation.

Kramnik's 17 . . . Rg8 discourages his opponent from trying a quick breakthrough with 18 e6?!

But he acknowledged that previous talks had been plodding and painstaking, and promised no quick breakthrough.