 It's as if the air we breathe is dirty, and when you're outside the tent you can see the dirt. Gaza's hygiene and sanitation system has been decimated by Israel's eight-month offensive in the besieged enclave. Hepatitis A cases are rising, and doctors fear a cholera outbreak is likely. Israeli authorities say they're engaging in efforts to improve what they call the hygiene situation, but relief can't come soon enough. I'm Karen Shamas.