VICP Registry Case Source Bundle Canonical URL: https://vicp-registry.org/case/USCOURTS-cofc-1_25-vv-01175 Package ID: USCOURTS-cofc-1_25-vv-01175 Petitioner: Mason Cowart Filed: 2025-07-14 Decided: 2026-02-18 Vaccine: influenza Vaccination date: 2023-10-29 Condition: shoulder injury related to vaccine administration (SIRVA) Outcome: entitlement_granted_pending_damages Award amount USD: AI-assisted case summary: 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. Theory of causation field: Influenza vaccine on October 29, 2023, causing Table SIRVA; ENTITLEMENT GRANTED, damages pending/not found. Respondent conceded the Table SIRVA elements. No award amount in available public record. Chief SM Brian H. Corcoran, petition filed July 14, 2025; entitlement February 18, 2026. Attorney: Maximillian J. Muller, Muller Brazil. Public staged source text: ================================================================================ DOCUMENT 1: USCOURTS-cofc-1_25-vv-01175-0 Date issued/filed: 2026-03-25 Pages: 2 Docket text: PUBLIC ORDER/RULING (Originally filed: 02/18/2026) regarding 16 Ruling on Entitlement Signed by Chief Special Master Brian H. Corcoran. (ppa) Service on parties made. -------------------------------------------------------------------------------- Case 1:25-vv-01175-UNJ Document 21 Filed 03/25/26 Page 1 of 2 In the United States Court of Federal Claims OFFICE OF SPECIAL MASTERS No. 25-1175V MASON COWART, Chief Special Master Corcoran Petitioner, Filed: February 18, 2026 v. SECRETARY OF HEALTH AND HUMAN SERVICES, Respondent. Maximillian J. Muller, Muller Brazil, LLP, Dresher, PA, for Petitioner. Parisa Tabassian, U.S. Department of Justice, Washington, DC, for Respondent. RULING ON ENTITLEMENT1 On July 14, 2025, Mason Cowart (“Petitioner”) filed a petition for compensation under the National Vaccine Injury Compensation Program, 42 U.S.C. §300aa-10, et seq.2 (the “Vaccine Act”). Petitioner alleges that he suffered from a shoulder injury related to vaccine administration (“SIRVA”) as a result of receiving an influenza (“flu”) vaccination on October 29, 2023. Pet., ECF No. 1. Petitioner further alleges that he suffered the residual effects of his injury for more than six months. Id. The case was assigned to the Special Processing Unit of the Office of Special Masters. On January 27, 2026, Respondent filed his Rule 4(c) report in which he concedes that Petitioner is entitled to compensation in this case. Respondent’s Rule 4(c) Report at 1, ECF No. 14. Specifically, Respondent indicated that “[P]etitioner’s alleged injury is 1 Because this Ruling contains a reasoned explanation for the action taken in this case, it must be made publicly accessible and will be posted on the United States Court of Federal Claims' website, and/or at https://www.govinfo.gov/app/collection/uscourts/national/cofc, in accordance with the E-Government Act of 2002. 44 U.S.C. § 3501 note (2018) (Federal Management and Promotion of Electronic Government Services). This means the Ruling will be available to anyone with access to the internet. In accordance with Vaccine Rule 18(b), Petitioner has 14 days to identify and move to redact medical or other information, the disclosure of which would constitute an unwarranted invasion of privacy. If, upon review, I agree that the identified material fits within this definition, I will redact such material from public access. 2 National Childhood Vaccine Injury Act of 1986, Pub. L. No. 99-660, 100 Stat. 3755. Hereinafter, for ease of citation, all section references to the Vaccine Act will be to the pertinent subparagraph of 42 U.S.C. § 300aa (2018). Case 1:25-vv-01175-UNJ Document 21 Filed 03/25/26 Page 2 of 2 consistent with SIRVA as defined by the Vaccine Injury Table.” Id. at 4. Respondent does not dispute that Petitioner “has satisfied all legal prerequisites for compensation under the Act.” Id. In view of Respondent’s position and the evidence of record, I find that Petitioner is entitled to compensation. IT IS SO ORDERED. s/Brian H. Corcoran Brian H. Corcoran Chief Special Master 2 ================================================================================ DOCUMENT 2: USCOURTS-cofc-1_25-vv-01175-cl-extra-11282334 Date issued/filed: 2026-03-25 Pages: 1 Docket text: Supplementary opinion from CourtListener cluster 10815563 -------------------------------------------------------------------------------- In the United States Court of Federal Claims OFFICE OF SPECIAL MASTERS No. 25-1175V MASON COWART, Chief Special Master Corcoran Petitioner, Filed: February 18, 2026 v. SECRETARY OF HEALTH AND HUMAN SERVICES, Respondent. Maximillian J. Muller, Muller Brazil, LLP, Dresher, PA, for Petitioner. Parisa Tabassian, U.S. Department of Justice, Washington, DC, for Respondent. RULING ON ENTITLEMENT 1 On July 14, 2025, Mason Cowart (“Petitioner”) filed a petition for compensation under the National Vaccine Injury Compensation Program, 42 U.S.C. §300aa-10, et seq. 2 (the “Vaccine Act”). Petitioner alleges that he suffered from a shoulder injury related to vaccine administration (“SIRVA”) as a result of receiving an influenza (“flu”) vaccination on October 29, 2023. Pet., ECF No. 1. Petitioner further alleges that he suffered the residual effects of his injury for more than six months. Id. The case was assigned to the Special Processing Unit of the Office of Special Masters. On January 27, 2026, Respondent filed his Rule 4(c) report in which he concedes that Petitioner is entitled to compensation in this case. Respondent’s Rule 4(c) Report at 1, ECF No. 14. Specifically, Respondent indicated that “[P]etitioner’s alleged injury is 1 Because this Ruling contains a reasoned explanation for the action taken in this case, it must be made publicly accessible and will be posted on the United States Court of Federal Claims' website, and/or at https://www.govinfo.gov/app/collection/uscourts/national/cofc, in accordance with the E-Government Act of 2002. 44 U.S.C. § 3501 note (2018) (Federal Management and Promotion of Electronic Government Services). This means the Ruling will be available to anyone with access to the internet. In accordance with Vaccine Rule 18(b), Petitioner has 14 days to identify and move to redact medical or other information, the disclosure of which would constitute an unwarranted invasion of privacy. If, upon review, I agree that the identified material fits within this definition, I will redact such material from public access. 2 National Childhood Vaccine Injury Act of 1986, Pub. L. No. 99-660, 100 Stat. 3755. Hereinafter, for ease of citation, all section references to the Vaccine Act will be to the pertinent subparagraph of 42 U.S.C. § 300aa (2018). consistent with SIRVA as defined by the Vaccine Injury Table.” Id. at 4. Respondent does not dispute that Petitioner “has satisfied all legal prerequisites for compensation under the Act.” Id. In view of Respondent’s position and the evidence of record, I find that Petitioner is entitled to compensation. IT IS SO ORDERED. s/Brian H. Corcoran Brian H. Corcoran Chief Special Master 2