In cases of porphyria, a minor disease, the patient excretes large quantities of porphyrins.

Coproporphyrin in particular is widespread; traces are present in normal urine and also in yeast. In special cultures, yeast can be made to produce considerable quantities of coproporphyrin.

What surprises me, what amazes me, is that it seems the military people were expecting to stumble on large quantities of gas, chemical weapons and biological weapons.

The challenge will be to produce large quantities of this glue without it sticking to everything that is used to produce it.

We are actually disease-free in Vietnam for the moment. We're probably not virus-free, but what the mass vaccination has done is reduce the virus load in the environment we have less virus circulating.

She has really been able to guide them through some things and been very patient. You can't expect somebody who's never been in our program to come in and get it right away. They're going to keep getting it all the way through the season. She's been real patient and been a good leader.