Can I start yogurt with whey?

[~Amy~]

I drained a quart of yogurt into whey & yogurt cheese the other day and now I want to start some another batch, but only have whey, no actual yogurt left.  Can I start yogurt with whey or do I need to go buy some more yogurt?

[Chicky2]

You need to buy more plain yogurt.

[~Amy~]

Thanks:). Picked some up today.

Originally Posted by Chicky2 

You need to buy more plain yogurt.