I instituted this because the kids were becoming resistant to being told what to do.

But as patients become resistant to their first-line drugs, doctors must have new options.

Drugs lose effectiveness because the microbes they fight become resistant.

This is because their bodies have become resistant to the viruses.

The states that receive our garbage are becoming resistant and may soon close the door.

No evidence suggests that the bacteria have become resistant to antibiotics.

This is changed every 3 years to prevent the lice becoming resistant.

There, the flies have become resistant to one chemical, so another must be used.

In recent years they have become resistant to many rodicides.

"We were becoming resistant to spending all this money," she said.