Thomas Mack v. HHS - Influenza, septic arthritis after shoulder injury related to vaccine administration (2025)

On September 29, 2022, Thomas Mack filed a petition alleging that an influenza vaccine administered on October 15, 2019 caused a shoulder injury related to vaccine administration. Respondent conceded entitlement in a Rule 4(c) report, stating that the evidence established that Mr.

Mack's septic arthritis was caused in fact by the flu vaccine and that no other cause had been identified. The public entitlement and damages documents do not describe the first shoulder symptoms, infection workup, cultures, surgery or drainage, antibiotic course, hospital treatment, or residual limitations.

Chief Special Master Brian H. Corcoran found entitlement on November 27, 2023.

On October 31, 2025, he adopted respondent's damages proffer and awarded Mr. Mack $172,500.00 for pain and suffering as a lump sum.