Mason Cowart v. HHS - Influenza, shoulder injury related to vaccine administration (SIRVA) (2026)

On July 14, 2025, Mason Cowart filed a petition alleging that an influenza vaccination administered on October 29, 2023 caused a shoulder injury related to vaccine administration. The case proceeded as a Table SIRVA claim.

Respondent conceded entitlement in a Rule 4(c) report. The concession stated that the record satisfied the Table SIRVA elements, including onset and localization of shoulder pain, absence of another condition explaining the injury, and residual effects lasting more than six months.

Chief Special Master Brian H. Corcoran found Mr.

Cowart entitled to compensation on February 18, 2026. The available public record for this package does not include a damages decision or award amount.