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How much of the crisis is based on hard science and how much stems from plain old hysteria--fanned by news reports and plaintiffs' lawyers--is a hotly contested issue. Mold, after all, is everywhere, from the tasty Roquefort cheese in your salad dressing to the nasty black stuff clinging to the grout in your bathroom. Doctors know that certain strains can trigger allergic reactions, asthma and other respiratory ailments. They have discovered that toxins produced by aspergillus molds can cause cancer. But proving that a mold in this house caused this person's nosebleeds or mental confusion is a notoriously difficult task.
Among the skeptics, Dr. Emil Bardana, of Oregon Health & Science University, argues that most people will experience little more than "transient irritations," such as a runny nose or teary eyes, that clear up once the mold is removed.
Others are not so sure. In a study published in 1999, Mayo Clinic researchers concluded that mold causes most chronic sinus infections. Even more alarming, several researchers believe that molds can cause some types of brain damage. Wayne Gordon, a neuropsychologist, and Dr. Eckardt Johanning, both of the Mount Sinai School of Medicine in New York City, have seen enough patients whose problems with memory, learning and concentration occurred only after exposure to stachybotrys to convince them there is a relationship. Still, they concede, more research is needed.
Lawyers don't require such absolutes. "For science to prove something, it has to be 100% certain. In a civil lawsuit, it has to be proved only 51%," says Guy Vann, a New York City attorney who has won mold trials. The Department of Housing and Urban Development has shelled out some $5 million to clean up mold problems in low-income homes.
The biggest winners are the industries feeding off mold mania. "Six years ago, people laughed in my face," says Ed Cross, a lawyer in Santa Ana, Calif. Since then, he has won mold settlements as large as $978,000 and says he gets 50 calls a week from potential clients. Steve Temes, an industrial hygienist in Red Bank, N.J., charges $150 an hour for mold inspections. "I used to do radon and lead testing," he says. "But there was no demand."
The losers are people like Mark and Mary Jane O'Hara of Eugene, Ore. In February they had the local fire department burn their home to the ground after doctors attributed the family's chronic nosebleeds, flulike symptoms and severe headaches to mold. The O'Haras figured it would cost more to repair the house than to rebuild it from scratch. Others, like Carol Cherry of Hazlet, N.J., can't afford the $5,000-to-$10,000 retainer that lawyers often require to take on a mold case. Stranded in her moldy home, Cherry says, "I can't have guests over. I can't even invite children over to play with my nine-year-old son." Yet Cherry, who has spent the past year looking for help, is not ready to give up the fight. "My children and I were wronged," she says, "and I will do everything in my power to right that wrong."
--With reporting by Dan Cray/Los Angeles, Hilary Hylton/Austin, Michelle McCalope/Houston and Maggie Sieger/Chicago