This is Dr. David. I am reviewing your question now and will be with you momentarily.
lyes, TB can be very contagious and can spread through air droplets.
TB is rare now in the USA and UK, but can occur in some patients who have suppressed immune systems.
she really should be in respiratory isolation and be wearing a mask if she is with people to help protect against spread of sputum droplets when she coughs in case she has TB.
she should be wearing a mask and be away from others until she gets her chest X-ray and TB tests back.
a chest xray is not the best way to test for TB.
a skin TB test and chest CT Scan and sputum culture are better ways to test for TB.
let me know if you have questions.