Once you have latent tb, and you were treated and recovered, can you contract tb again after that?

Yes: Even if you've had TB and were treated, you can get re-infected via exposure to someone who has TB. Also, there are a lot of strains that r resistant to many current TB antibiotics, so you must be sure your TB was truly cured. I'd consider getting a sputum smear microscopy. Good luck. Check this site out. Maybe it'll help.https://tbfacts.org/tb-treatment/