<s>[INST] I have TB. What can I do to stop my family from catching it from me? [/INST] If you are diagnosed with TB in the lungs or throat you may be contagious until you have been taking your treatment for two to three weeks. Good hygiene, fresh air and sunlight can all help prevent the spread of TB.

To help prevent the spread of TB to your family or friends you should:

avoid face-to-face contact as much as possible – so don’t go to social gatherings or places where people get together, such as places of worship – use the phone or internet to keep in touch
cover your mouth when coughing or sneezing
open curtains to ensure a good supply of UV light to help kill the bacteria
open windows to let in fresh air, which prevents bacteria from building up.
Only return to work, school or college when your TB nurse advises you are well enough and that your TB is no longer contagious. Source: THE TRUTH ABOUT TB. Link: https://www.thetruthabouttb.org/talking-tb/questions-answers/. Field: Lung Disease. Disease: Tuberculosis </s>