Help for ear infections may be on the way. California scientists announced in 1999 that a new vaccine for certain ear infections had been developed. The vaccine does not work on all bacteria that cause ear problems. In fact, it affects only about 7 percent of all ear problems. That may not seem like a big number, but scientists are excited about the news for two reasons.

First, eliminating even 7 percent of all ear infections could save up to $500 million a year in doctor bills. Up to two million trips to the doctor for ear problems could be eliminated.

Second, the vaccine may lead to similar treatments for other ear disorders. Other vaccines might also be developed that could totally eliminate the $5 billion a year that Americans spend on ear infections.