At that time, a shortage of vanilla planting stock was occurring in India.

I understand that the same shortages are occurring in neighboring states.

But it issued a series of recommendations to help make sure that if shortages occurred, the vaccine would go to people most in need.

In the meantime, a worldwide shortage of the drug has occurred.

Nevertheless, local shortages can occur during the dry season.

When shortages did occur, we knew exactly where the needed parts could be located, and they were shipped quickly.

This genuine shortage is occurring for the first time ever.

Some industry officials think that estimate is much too low, because the shortage occurred during Christmas.

It's hard to get a reliable fix on why the shortages this week are occurring.

Other shortages have occurred soon after a drug has lost its patent protection.