J.K.J.G. v. HHS - DTaP, complex febrile seizure disorder (2026)

John-Kenry Greene and Emily Douangmala, parents of J.K.J.G., filed a petition alleging their son suffered a complex febrile seizure disorder as a result of Dtap, Hib, Hep B, Prevnar 20, and polio vaccines received on August 13, 2024. J.K.J.G. was born on November 26, 2023.

Approximately six hours after vaccination, he experienced a seizure. The petition was filed on September 27, 2024.

Respondent argued against compensation, asserting the claim did not meet the six-month severity requirement and that J.K.J.G.'s symptoms were due to his autism spectrum disorder (ASD) diagnosis. The court noted J.K.J.G. was diagnosed with ASD and global developmental delay in September 2025, following three post-vaccination seizure events.

Despite multiple extensions and opportunities to obtain counsel and submit evidence, Petitioners failed to provide preponderant evidence of a vaccine-caused injury meeting the severity requirement or a biological mechanism for causation. The court found that the medical records attributed J.K.J.G.'s conditions to an unrelated ASD diagnosis and simple febrile seizures.

Consequently, the case was dismissed for failure to prosecute, specifically for failing to provide evidence of an alleged injury that meets the severity requirement.