Constantia Kyrou v. HHS - Influenza, adverse reaction to influenza vaccine (2026)

On March 5, 2026, Constantia Kyrou filed a petition alleging an adverse reaction to an influenza vaccine administered on October 23, 2023. The court identified that Ms.

Kyrou already had an earlier Vaccine Program petition, No. 25-253V, based on the same vaccine administration and alleged adverse reaction. Because the Vaccine Act allows only one petition for the same vaccine administration, Chief Special Master Brian H.

Corcoran issued a show-cause order. On March 9, 2026, petitioner acknowledged that the new petition duplicated the earlier case and requested dismissal.

The court treated the response as a notice of dismissal under Vaccine Rule 21(a)(1) and dismissed the duplicate petition without prejudice on March 10, 2026. The public order does not describe the medical condition or award compensation.