Bird flu vaccine trial a waste
Bird Flu is really serious - it’s already a killer disease, but doesn’t spread easily.
But scientists think at any moment it could swap genes with normal flu, and turn into a killer disease that sweeps the world, killing millions.
The USA is about to begin trials of a vaccine that could be used to stop people dying of such an outbreak.
Trouble is, some scientists are saying that the vaccine trial won’t work, because too little vaccine is going to be used.
To be fair, this is only the first in a series of trials - but when if Bird Flu gets airborne around the world, everybody better hope there is plenty of good vaccine around.