ICYMI: Hepatitis B Reactivation with Rituximab and Abatacept A serologic study of rheumatoid arthritis patients shows that HBV reactivation is seen with rituximab, and less so with abatacept, especially in patients without HBsAb positivity. https://t.co/l1qCrWCyZd #RheumNow https://t.co/EUoWt9xGdB