Our Maid Who Has Been With Us For 3 Months

Our maid who has been with us for 3 months has been recently diagnosed with Right Apical Fibrosis after a chest x-ray was done. This is usually due to old PTB as indicated by the radiologist.
She was working as a maid in Saudi for 5 years & 2 years in Singapore prior to working for us. Overall she is healthy & fit. Am I taking a big risk if she stays until the new maid arrives. How contagious is her condition?