{
  "id": 8883,
  "url": "https://doi.org/10.1016/s1473-3099(21)00460-6",
  "title": "Risk factors and disease profile of post-vaccination SARS-CoV-2 infection in UK users of the COVID Symptom Study app: a prospective, community-based, nested, case-control study",
  "summary": "BACKGROUND: COVID-19 vaccines show excellent efficacy in clinical trials and effectiveness in real-world data, but some people still become infected with SARS-CoV-2 after vaccination. This study aimed to identify risk factors for post-vaccination SARS-CoV-2 infection and describe the characteristics of post-vaccination illness. METHODS: This prospective, community-based, nested, case-control study used self-reported data (eg, on demographics, geographical location, health risk factors, and COVID",
  "authors": "Michela Antonelli, Rose S Penfold, Jordi Merino, Carole H Sudre, Erika Molteni, Sarah Berry",
  "category": "research",
  "topics": "healthcare",
  "orgs": null,
  "regions": "uk",
  "published_at": "2021-09-01T00:00:00.000Z",
  "fetched_at": "2026-07-14T16:33:47.093Z",
  "source_slug": "openalex",
  "source_name": "OpenAlex",
  "source_homepage": "https://openalex.org",
  "ethics_ai_record_url": "https://ethics.ai/record/8883",
  "original_url": "https://doi.org/10.1016/s1473-3099(21)00460-6",
  "evidence_status": "source-only",
  "attribution": "via ethics.ai"
}