First of all, TB doesn't spread from just one infected person in a normal environment. TB spreads in poorly ventilated areas with generally poor sanitation. That's why you find it in ghettos and Russian prisons. Lysol would kill the germs on hard surfaces, but not necessarily in fabrics. At any rate, it's a moot point, because the risk would be negligible.

Spraying lysol can't hurt, but ventilation is important. I would suggest opening all the windows and airing out the office. TB is an air-born germ. It is spread by the infected person coughing, sneezing, laughing, or even talking. It is not easy to become infected with tuberculosis. Usually a person has to be close to someone with TB disease for a long period of time. TB is usually spread between family members, close friends, and people who work or live together. TB is spread most easily in closed spaces over a long period of time. However, transmission in an airplane, although rare, has been documented. Even if someone becomes infected with tuberculosis, that does not mean they will get TB disease. Most people who become infected do not develop TB disease because their body's defenses protect them. Most active cases of TB disease result from activating old infection in people with impaired immune systems. I wouldn't be to concerned but next time you should take proper precautions and have the patient wear a mask if the TB is active. Not only for your protection but for the protection of your other patients as well. http://www.mckinley.uiuc.edu/Handouts/tuberculosis.html http://www.tbdots.com/site/en/patient_section_how_tb_spread.html