PTPN22 1858C>T allele, seen in 5-15% NAmerica, often assoc. w/ autoimmune dz risk. BUT...PNAS shows Ptpn22 augments innate immunity and enhances NK activity against coronavirus infection https://t.co/1AMTuOXtoT https://t.co/9f3JdimJsG
Links:
An autoimmunity-associated allele of PTPN22 enhances innate antiviral immunity …
https://buff.ly/dAQBNpT
May-13-2026


