It does not seem that there is a huge problem with major impact, but definitely there are some problem, irritations; everybody has experienced it.

No such outbreak occurred because of Hurricane Katrina.

It's going to do an upper respiratory irritation, you are going to sneeze your eyes out, you're going to weep, you're going to cough and it's going to last for a while.

…These people should not be around large amounts of molds because they probably can get an invasive disease; a small number, but they get an invasive disease and then you have fungus growing in your lung, in another organ, and that is very serious and difficult to treat.

It's not like the flu. The signs and symptoms are very severe. The problem is by the time you know, you're very sick and when you go to the hospital it may be too late.

A major problem is that herbal extracts are not patentable. Therefore, if a manufacturer - most of them are rather small - invests huge amounts of money in clinical research on an extract, his competitors can easily use this research for their products, too.