A new human vaccine against bird flu cannot be produced in large quantity at the moment.

Currently there are no human vaccines against any form of echinococcosis.

Those may slow the epidemic until more human vaccine is made.

Many experts believe that a human vaccine is at least 5 to 10 years away.

"We should be careful not to think that a human vaccine is just around the corner," he said.

The obstacles in developing a human vaccine are numerous, researchers said.

My halls have already started to accumu- late human vaccine.

That process is considered barely acceptable for human vaccine today.

Research on human vaccines has been conducted, but none are now on the market.

But for now, he said, "it is much too soon to say whether our method will produce effective human vaccines."