Korean study (TB endemic area) shows the risk of mTB & nontuberculous mycobact infx (NTM) are equal and nearly doubled in RA pts on TNFi. Among 4356 RA (1089 on TNFi) NTM & TB rates were 328- and 341/100K PY (US rate is 6/100K PY) https://t.co/QwzTYt3wX4 https://t.co/GLWreoQ6ih