Several people returning, exposed to the residual dust and muck of Katrina, in Louisiana and Mississippi, have been presenting respiratory symptoms.
Health officials say the symptoms include sinus headaches, sore throat, cough etc. For healthy people the symptoms pose no serious threat, others are in danger.
The Enviromental Protection Agency announced it is safe to be there. They are the same ones who said the air was safe to breath, following the New York City September 11th incident. There has been accusations that the EPA, used faulty testing methods in New York, so Wall Street would open early.
See the story about Katrina Cough in the LA Times LA TIMES KATRINA STORY.