An immunogenicity study w/ live ZOSTAVAX given ~2-wks before tofacitinib showed after mean 27 mos - 5 of 100 TOFA rx pts developed H. Zoster (at 218, 280, 748, 741, 544 days post-vaccination). OOOPs; not very protective. Use Shingrix! https://t.co/hEIJTCjJ3t