{"package_id":"USCOURTS-cofc-1_19-vv-00820","decision_granule_id":"USCOURTS-cofc-1_19-vv-00820-cl11443287","petitioner_identifier":"Ross Davenport","is_minor":0,"age_at_vaccination":66.0,"age_unit_raw":"years","vaccine_type":"Streptococcus pneumoniae","vaccination_date":"2018-04-17","condition_raw":"Guillain-Barré syndrome (GBS), specifically acute motor axonal neuropathy (AMAN)","condition_category":"GBS","autism_spectrum_adjacent":0,"outcome":"denied","award_amount_usd":null,"decision_date":"2026-08-24","extraction_version":"gemini-v3","extracted_at":"2026-09-18T09:15:43.672211+00:00","number_of_concurrent_vaccines":2,"dose_number":null,"time_to_onset_days":14,"theory_of_causation":"Off-Table","is_death":0,"date_of_death":null,"petition_filed_date":"2019-06-04","case_summary":"Ross Davenport, born in 1952, received a Prevnar vaccine on April 17, 2018, along with a hepatitis B and typhoid vaccine. A few days later, he experienced leg discomfort, which progressed to back pain, numbness, and weakness in his arms and legs. He was diagnosed with acute motor axonal neuropathy (AMAN), a subtype of Guillain-Barré syndrome (GBS). Mr. Davenport alleged that the Prevnar vaccine caused his GBS. The Secretary of Health and Human Services opposed the claim, relying on expert testimony. The court considered the theory of molecular mimicry, where components of the vaccine are alleged to resemble host tissue, leading to an autoimmune response. Petitioner's expert, Dr. Sheikh, proposed that Prevnar could induce anti-galactose antibodies that attack nerve axons. However, the court found Dr. Sheikh's theory lacked persuasive evidence, particularly regarding whether Prevnar actually induces anti-galactose antibodies and whether such antibodies cause AMAN. Epidemiological studies on pneumococcal vaccines and GBS did not show an increased risk. The court also noted that while a temporal association existed (symptoms within two weeks of vaccination), it was insufficient to establish causation. Ultimately, the court denied entitlement to compensation, finding that Mr. Davenport had not met his burden of proof to show the vaccine caused his injury.","is_minor_inferred":0,"is_pediatric_broad":0,"special_master":null,"petitioner_identifier_original":null,"caption_petitioner_name":null,"petitioner_attorney_name":null,"petitioner_attorney_firm":null,"petitioner_attorney_location":null,"adjudicator_name":"Christian J. Moran","caption_people_backfilled_at":"2026-09-20 01:55:48","attorney_canonical_keys":null,"firm_canonical_key":null,"date_of_birth":"1952-01-01","vaccine_type_canonical":"Streptococcus pneumoniae","condition_category_specifics":null,"fees_and_costs_usd":null,"attorney_unavailable_reason":"not_in_source","is_fees_only":0,"decision_type":"reasoned","decision_type_source":"title-regex","package_title":"Davenport v. Secretary of Health and Human Services","canonical_url":"https://vicp-registry.org/case/USCOURTS-cofc-1_19-vv-00820","plain_text_url":"https://vicp-registry.org/case/USCOURTS-cofc-1_19-vv-00820.txt","json_url":"https://vicp-registry.org/case/USCOURTS-cofc-1_19-vv-00820.json","source_documents":[{"granule_id":"USCOURTS-cofc-1_19-vv-00820-cl11443287","title":"Davenport v. Secretary of Health and Human Services","docket_text":"combined-opinion","date_issued":"2026-09-16","pdf_url":"https://www.courtlistener.com/opinion/10975647/davenport-v-secretary-of-health-and-human-services/","pdf_bytes":406919,"triage_decision":"keep","triage_reason":"courtlistener-opinion","download_status":"ok","registry_pdf_url":"https://vicp-registry.org/pdf/USCOURTS-cofc-1_19-vv-00820/USCOURTS-cofc-1_19-vv-00820-cl11443287"}]}