Early in his second year, Manning seemed to be cruising up the growth curve.

When Sam was about 9 months old, his growth curve plummeted, and everything changed.

Many at the conference predicted that world travel would be back on the growth curve when they meet again two years from now in China.

By 12 weeks later, they were in the 77th percentile on the growth curve, he says.

"We see," he added, "an incredible opportunity to continue the aggressive growth curve we've seen over the past 18 months."

So, in order to continue the growth curve established between 2000 and 2006, it's going to take serious government incentives to encourage development.

The growth curve that is used will depend on the nature of the epidemic.

The child will not follow the normal growth curves.

But my guess is it'll be a slow growth curve.

The growth curve from the mid-70's to 1990 has been quite dramatic.