Dilema Moreno v. HHS - MMR, chronic arthropathy (2003)

Dilema Moreno received an MMR vaccination on October 27, 1992, at the age of 44. Approximately two weeks later, she began experiencing symptoms of swollen glands, a facial rash, and joint pain (arthralgia) in her elbows, knees, and ankles, which persisted for a week.

Her physician, Dr. John Schwartz, concluded these were adverse reactions to the MMR vaccination.

Ms. Moreno continued to experience chronic joint pain, and by March 26, 1996, she developed observable swelling in two joints.

She did not claim her injury was on the Vaccine Injury Table but instead presented a causation-in-fact argument. The case involved complex legal and scientific analysis regarding whether the rubella vaccine could cause chronic arthropathy, with prior decisions establishing general causation.

The respondent challenged the Special Master's reliance on the Tingle study, arguing it had methodological flaws and was irrelevant to Ms. Moreno's severe condition.

The court reviewed the Special Master's entitlement decision, applying an arbitrary and capricious standard. The court affirmed the Special Master's decision, finding that the evidence, including petitioner's specific medical evidence and the Special Master's prior analyses, supported a finding that the rubella vaccination was the cause-in-fact of her chronic arthropathy.

The court found the Special Master's consideration of the Tingle study, despite respondent's criticisms, to be neither arbitrary nor capricious, and that it was relevant to the case. Ms.

Moreno was ultimately compensated for her injury.