{
  "slug": "antibiotic-resistance-infection",
  "question": "What is the risk of developing a serious antibiotic-resistant infection?",
  "category": "health",
  "no_reliable_estimate": false,
  "perceived": {
    "description": "Most people understand that antibiotic resistance is a problem in a vague, headline-level way — something that will matter in the future, mostly in hospitals, mostly to other people. The idea that more than one in three US adults will have a serious drug-resistant infection at some point in their lifetime is almost entirely absent from lay risk perception. Resistance is framed as a policy failure, not a personal hazard.\n",
    "kind": "intuition"
  },
  "native": {
    "display": "~2.8 million antibiotic-resistant infections per year in the US",
    "numerator": 2800000,
    "denominator": 335000000,
    "unit": "per year",
    "population": "US residents"
  },
  "normalized": {
    "lifetime_us_adult": 0.391,
    "display": "~1 in 2.6 lifetime (US adult)",
    "log_value": -0.41,
    "assumptions": "Annual rate: 2,800,000 / 335,000,000 = 0.008358 per person per year. Compounded over 59 adult years: 1 - (1 - 0.008358)^59 = 1 - (0.99164)^59 ≈ 1 - 0.609 = 0.391. This is the probability of experiencing at least one serious AR infection over a lifetime, treating each year as an independent draw at the population rate. The 35,000 annual deaths from AR infections give a separate lifetime fatal AR probability of ~0.006 (1 in 167). The headline figure covers serious infections (not all episodes result in hospitalization), per CDC's 2019 AR Threats Report definition.\n",
    "uncertainty": {
      "low": 0.3,
      "high": 0.47
    },
    "scope": "us_adult_lifetime"
  },
  "sources": [
    {
      "url": "https://www.cdc.gov/antimicrobial-resistance/data-research/threats/index.html",
      "title": "Antibiotic Resistance Threats in the United States, 2019",
      "publisher": "Centers for Disease Control and Prevention (CDC)",
      "source_type": "govt_report",
      "statistic": "More than 2.8 million antibiotic-resistant infections occur in the US each year, and more than 35,000 people die as a result",
      "excerpt": "\"More than 2.8 million antibiotic-resistant infections occur in the U.S. each year, and more than 35,000 people die as a result. When Clostridioides difficile — a bacterium that is not typically resistant but can cause deadly diarrhea and is associated with antibiotic use — is added to these, the total reaches 3 million infections and 48,000 deaths.\"\n",
      "source_date": "2019-11-13",
      "source_accessed": "2026-04-24",
      "archive_url": "http://web.archive.org/web/20260417133122/https://www.cdc.gov/antimicrobial-resistance/data-research/threats/index.html",
      "calculation_notes": "CDC's 2019 AR Threats Report is the most comprehensive national estimate of antibiotic-resistant infection burden. The 2.8 million figure covers 18 pathogens classified as urgent, serious, or concerning threats and is used as the native numerator. The 35,000 deaths figure anchors the fatal sub-probability in the assumptions. Subsequent CDC data (2021-2022 update) found that six hospital-onset resistant infections rose 20% during the COVID-19 pandemic peak, suggesting the 2.8M baseline is a floor, not a ceiling, for post-pandemic years.\n"
    },
    {
      "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC10679183/",
      "title": "Burden of Bacterial Antimicrobial Resistance in United States in 2019: A Systematic Analysis",
      "publisher": "Open Forum Infectious Diseases / Oxford University Press",
      "source_type": "peer_reviewed",
      "statistic": "60,813 deaths associated with and 14,987 deaths attributable to bacterial AMR in bloodstream infections in the US in 2019",
      "excerpt": "\"In the US, there were 60,813 deaths (95% uncertainty interval [UI]: 32,520–102,231) associated with and 14,987 deaths (95% UI: 7,712–25,156) attributable to bacterial AMR in blood stream infection highest in 2019.\" The paper concludes: \"AMR is a serious burden in the United States, with millions of people acquiring antibiotic-resistant infections each year and tens of thousands dying as a result.\"\n",
      "source_date": "2023-11-01",
      "source_accessed": "2026-04-24",
      "archive_url": "https://web.archive.org/web/20260426193722/https://pmc.ncbi.nlm.nih.gov/articles/PMC10679183/",
      "calculation_notes": "This independent systematic analysis focuses on bloodstream infections (BSI) specifically, finding 60,813 deaths associated with and 14,987 deaths attributable to bacterial AMR in BSI in 2019. The scope is narrower than CDC's all-infection estimate (2.8M infections across 18 pathogens), but the BSI-specific death toll (60,813 associated) exceeds CDC's 35,000 attributable deaths across all infection types, reflecting different attribution methods. The peer-reviewed design — drawing on hospital discharge records, microbiology lab reports, and vital statistics — is methodologically independent of CDC's surveillance network. Used here as corroborating evidence for the severity of AR burden rather than the native numerator.\n",
      "independence_note": "Methodologically independent of CDC's Threats Report: different data sources (hospital discharge records vs. sentinel surveillance) and different attribution framework, making this a genuine cross-check rather than a recount of the same pipeline.\n"
    }
  ],
  "comparison_anchors": [
    {
      "label": "Lifetime HAI (any, US adult)",
      "lifetime_us_adult": 0.032
    },
    {
      "label": "Lifetime sepsis (US adult)",
      "lifetime_us_adult": 0.25
    },
    {
      "label": "Lifetime death from AR infection (US adult)",
      "lifetime_us_adult": 0.006
    }
  ],
  "short_label": "Drug-resistant infection",
  "myth_framing": "underrated",
  "outcome_severity": "serious_harm",
  "exposure_pattern": "recurring",
  "outcome_type": "recoverable_injury",
  "valence": "negative",
  "caveats": "The 2.8 million figure is a count of infection *events*, not unique persons — a single individual can contribute multiple episodes in a year, so dividing by the US population overstates the per-person annual probability. The resulting \"more than one in three US adults\" lifetime figure is therefore an upper bound on personal risk, not a direct per-person estimate. The compound- probability calculation further treats annual incidence as independent across years, which overstates true lifetime risk if a prior infection confers any durable immunity or if recurrent infections cluster in a subset of high-risk patients. Conversely, the calculation uses the US-wide population rate, which understates risk for frequent healthcare users, residents of long-term care facilities, and immunocompromised individuals. The pandemic-era 20% surge in hospital-onset resistant infections suggests the 2019 baseline may undercount the current burden. CDC's 2021-2022 update is narrower in scope (six pathogens, hospital-onset only) and cannot directly replace the 2019 estimate.\n",
  "quality_score": {
    "d1": 3,
    "d2": 5,
    "d3": 5,
    "d4": 3,
    "d5": 4,
    "d6": 5,
    "d7": 4,
    "d8": 5,
    "avg": 4.25,
    "scored_by": "extracted-from-transcript",
    "scored_at": "2026-05-03",
    "methodology_version": "1.0"
  },
  "reviewer": "8d-eval-2026-05-16",
  "last_reviewed": "2026-05-16",
  "reviewed": true,
  "generated_at": "2026-04-24",
  "image": {
    "alt": "A flat vector illustration of a single bacterial cell with a crossed-out antibiotic capsule nearby, rendered in muted tones."
  },
  "attribution": "Likelier — https://likelier.app",
  "license": "https://creativecommons.org/licenses/by-sa/4.0/",
  "support": "https://buymeacoffee.com/kgluszczyk?via=likelier&utm_content=api-fear-single",
  "canonical_url": "https://likelier.app/antibiotic-resistance-infection"
}