In most cases, an insurance company or the government pays for vaccines.

Ideally, we would wait for vaccines with better safety profiles.

Iraq has asked Unicef for vaccines, and these are being sent.

Whatever the government's role, there are business obstacles for vaccines, including a much smaller market than with drugs.

He inserted a few lines on the matter while discussing the need for vaccines in Africa.

So if something bad happens, everybody knows where to go for vaccines.

In fact, he voted against a Clinton program to increase financing for such vaccines.

And the demand for vaccines has started to strain supplies.

A lot of you are talking about the news that major drug companies have agreed to significantly reduce their prices for vaccines in developing countries.

Today, scientists continue their search for vaccines to prevent other diseases.