Willow Moonsidhe 238 Posts Specializes in ER, L&D, ICU, LTC, HH. Has 25 years experience. Feb 5, 2010 Re: I'm very disturbed by this I'm interested in this aspiration TB transmission story. From the mid 1960's to about 1998 I have found one case of this occurring. It seems to be rather rare? http://www.fraud-insurance.net/Comp/healthcareexposure.pdf