証拠の質 4.88/5
8次元のレビュー評価。基準は 品質ルーブリック 。各次元は1〜5で評価。
- D1 出典への根拠
- 5/5
- D2 出典の権威性
- 5/5
- D3 算術
- 5/5
- D4 不確実性
- 5/5
- D5 範囲
- 5/5
- D6 文章
- 5/5
- D7 認識の誠実性
- 4/5
- D8 注意事項の完全性
- 5/5
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認知リスク
豊かな国々では、結核は19世紀の病気として広く扱われている——ヴィクトリア朝の小説、サナトリウム、そしてキーツの病気であり、2026年のものではない、と。米国、西ヨーロッパ、日本、またはオーストラリアのほとんどのLikelier読者は、結核で死亡する自分の確率を実質的にゼロと推測するだろうし、彼らにとってその推測はおおむね正しい。同じ読者がほぼ例外なく誤解しているのは世界全体の状況である。結核は過去十年の大半にわたって世界有数の感染症による死因であり、2023年にCOVID-19からその座を奪い返し、毎年HIV/AIDSのおよそ二倍の人々を死亡させている。私たちは「結核で死亡する恐怖」を明確な質問として切り分けた国際比較調査を見つけられていない。そのため、ここでの知覚された側は、世論調査データではなく編集上の直感である。
概算: 西洋の読者はこれを過去の病気として扱うが、世界の疾病負担は年間約1.25 millionの死亡である
出典: 編集部の直感（調査に基づかない）
実際のリスク
年間約1.23 millionの世界の結核死亡（2024年）
世界全体、全年齢（WHO Global TB Report 2025、参照年2024年）
計算を表示
2026-06-14に、参照年2024年のWHO Global Tuberculosis Report 2025の見出し数値に更新した：約1.23 millionの結核死亡（HIV陽性者の約150,000を含む）で、2024年の報告で2023年について報告された約1.25 millionからのわずかな減少である。約8 billionの世界人口で割ると、年間の一人あたりハザードは約1.54 × 10⁻⁴となる。成人としての60年にわたって累積すると：1 − (1 − 1.54e-4)^60 ≈ 9.2 × 10⁻³、すなわち世界の成人の生涯でおよそ109分の1となる。不確実性帯は、WHOのプログラム推定値（約1.23–1.25M）とGBD 2021推定値（約1.35M）の間のばらつき、およびWHOの年間結核死亡に関する95% UIを反映している。これは世界平均のスケールマーカーにすぎない——以下の地域別内訳を参照。米国、西ヨーロッパ、日本、オーストラリアの居住者にとって、実際の数値はおよそ五桁低い。
注意事項: 約110分の1という数値は世界平均のスケールマーカーであり、個人的な推定値としてはほとんど役に立たない。結核による死亡は八つの国（インド、インドネシア、中国、フ…
約110分の1という数値は世界平均のスケールマーカーであり、個人的な推定値としてはほとんど役に立たない。結核による死亡は八つの国（インド、インドネシア、中国、フィリピン、パキスタン、ナイジェリア、バングラデシュ、南アフリカ）に圧倒的に集中しており、これらの国々が合わせて世界の症例の約三分の二を占める。そしてそれらの国々の中でも、リスクはさらにHIV陽性者、栄養不良の人口、刑務所や過密な施設環境、および活動性症例の同居接触者に集中している。これらのリスク因子をいずれも持たない米国、西ヨーロッパ、日本、オーストラリアの居住者にとって、年間リスクは約百万分の1以下であり——世界の見出し数値と比べておよそ五桁の差がある。世界全体の数値もまた動いてきた。結核による死亡はCOVID-19が結核対策プログラムを混乱させた2020–2022年の間に増加し、その後再び減少し始めた。WHO Global TB Report 2025（参照年2024年）は、死亡を約1.23 million、罹患者を10.7 millionとした——いずれも2023年からのわずかな減少である——一方で、記録的な8.3 millionの人々が新たに診断・報告され、これはこれまでに記録された最高の症例数である（流行が拡大した兆候ではなく、検出・届出の記録である）。薬剤耐性結核は根強い課題のままである。2024年にリファンピシン耐性結核を発症した約390,000人のうち、治療を受けられたのは約42%——およそ5分の2——にすぎなかった（WHO Global TB Report 2025）。
リスクはどう変わるか
見出しの数値は大きく異なる状況の平均です。シナリオや文脈による確率の違いは以下の通りです:
108分の1
~1.25M TB deaths/yr across 8B people, compounded over 60 adult years. A scale marker, not a personal estimate.
25分の1 · 4.0%
India alone accounts for roughly a quarter of global TB deaths; South and Southeast Asia together dominate the global incidence.
20分の1 · 5.0%
HIV-TB co-infection drives case-fatality up from ~15% to closer to 40–50%; TB is the leading cause of death among people living with HIV.
20,000分の1
Essentially absent as a population risk. CDC reports ~350 TB-attributed deaths per year in the US (~1 in a million annually).
バーの長さと濃淡は、これらのシナリオを他のリスクとではなく、互いに比較して順位付けしたものです。正確な確率は各項目の横に表示されています。
関連するリスク
似たテーマの他のリスク — 関連する不安を探るために。
比較対象を選択
The World Health Organization’s Global Tuberculosis Report 2025 attributes roughly 1.23 million deaths to TB in reference year 2024, including about 150,000 among people living with HIV — a small decline from the ~1.25 million reported for 2023. That is still more than HIV/AIDS. It is more than malaria. And in 2023 TB had already reclaimed the title it held every year from 2014 to 2019, which the 2024 and 2025 reports both reaffirm: the world’s single deadliest infectious disease. An estimated 10.7 million people fell ill with TB in 2024, and a record 8.3 million were newly diagnosed and reported — the highest case count ever recorded, a detection milestone rather than a sign the epidemic grew, since estimated incidence actually edged down about 2% from 2023. The peer-reviewed Global Burden of Disease 2021 analysis, using a completely independent modeling pipeline, landed at ~1.35 million TB deaths — same order of magnitude, same conclusion. Averaged across 8 billion people and compounded over 60 adult years, the global headline lifetime figure is roughly 1 in 110.
What is genuinely strange about this fear is how badly the cultural imagination tracks the data. Most Likelier readers in wealthy countries file TB alongside cholera, typhus, and polio — diseases that used to matter before antibiotics, plumbing, and vaccines. That framing is correct for the US, where the CDC records ~350 TB-attributed deaths per year out of ~335 million people, a per-capita annual risk around one in a million. It is wrong for the world. TB is not a historical disease. It is an active epidemic that kills roughly as many people every year as live in a mid-sized American city, concentrated overwhelmingly in India, Indonesia, China, the Philippines, Pakistan, Nigeria, Bangladesh, and South Africa. The wealthy-country experience and the global experience of TB differ by roughly five orders of magnitude; both numbers are correct, they describe different populations.
The single largest piece of heterogeneity hiding behind the headline is the HIV-TB interaction. People living with HIV are about twelve times more likely to develop active TB than people without, TB is the leading cause of death among people living with HIV, and TB case-fatality climbs from roughly 15% in HIV-negative patients to something closer to 40–50% in untreated HIV-positive patients. That is why sub-Saharan Africa carries a disproportionate share of TB mortality relative to its caseload: the two epidemics are not separable there. The other large heterogeneities — malnutrition, household contact with an active case, crowded institutional settings — move individual risk by factors of 4 to 30 above the local average. The global 1 in 110 number is the right anchor for comparing TB to other infectious-disease fears on this site. It is the wrong anchor for almost any specific reader.
関連する豆知識
2024年に結核は世界で約123万人の死をもたらし、世界の成人の生涯リスクは1 in 110に近い。豊かな国では過去の病とみなされる一方、他地域では今なお最も致死的な感染症の一つだ。
根拠台帳
以下の各数値は各出典が報告した内容であり、引用した原文の抜粋と算出方法を記載しています。リンクをクリックして直接確認できます。
1/4 件の出典が引用元と一字一句一致することを独立して検証済み
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[1] World Health Organization — Global Tuberculosis Report 2025 — Factsheet
Global Tuberculosis Report 2025 — Factsheet- 統計値
TB caused an estimated 1.23 million deaths in 2024 (including 150,000 people with HIV); 10.7 million people fell ill with TB; 8.3 million were newly diagnosed and reported — a record high, up from 8.2 million in 2023 and 78% of estimated incident cases. 390,000 people developed RR-TB and only 164,545 (42%, ~2 in 5) were treated. TB is the world's leading cause of death from a single infectious agent.- 抜粋
“"Globally in 2024, TB caused an estimated 1.23 million deaths, including 150 000 people with HIV. … In 2024, an estimated 10.7 million people fell ill with TB worldwide, including 5.8 million men, 3.7 million women and 1.2 million children. … Globally in 2024, 8.3 million people were reported as newly diagnosed with TB in 2024 — a small increase from 8.2 million in 2023 and 78% of the estimated number of incident cases. … A total of 164 545 people were treated for rifampicin-resistant TB (RR-TB) in 2024. This was 42% of the approximately 390 000 people who developed RR-TB in 2024. … Tuberculosis (TB) is the world's leading cause of death from a single infectious agent and among the top 10 causes of death worldwide." ”
- 出典データ
- 2025-11-14
- アクセス日
- 2026-06-14 · アーカイブ版
- 計算過程
- WHO Global TB Report 2025 reports ~1.23 million annual TB deaths for reference year 2024, a small decline from the ~1.25 million reported for 2023. Divided by ~8 billion global population gives an annual per-capita hazard of ~1.54 × 10⁻⁴; compounded over 60 adult years yields 1 − (1 − 1.54e-4)^60 ≈ 9.2 × 10⁻³, i.e. roughly 1 in 109 — within the prior uncertainty band. The 8.3 million newly diagnosed/reported cases are the highest case count ever recorded (a diagnosis/notification record), while estimated incidence of 10.7 million actually fell ~2% from 2023; the two should not be conflated. MDR/RR-TB treatment access remains ~2 in 5 (42%).
- 独立性
- WHO Global TB Report is the primary programmatic pipeline; this 2025 edition is the same WHO Global TB Programme source family as the 2024 edition below, used here as the most current reference-year headline.
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[2] World Health Organization — Global Tuberculosis Report 2024 — 1.2 TB mortality
Global Tuberculosis Report 2024 — 1.2 TB mortality- 統計値
1.09 million TB deaths among HIV-negative people (95% UI 0.98–1.20 million) plus 161,000 deaths among people with HIV (95% UI 132,000–193,000) in 2023; ~1.25 million total. TB deaths from HIV-negative people (1.1 million) were almost double the deaths caused by HIV/AIDS (0.63 million).- 抜粋
“"Globally in 2023, there were an estimated 1.09 million deaths among HIV-negative people (95% uncertainty interval [UI]: 0.98–1.2 million) and an estimated 161 000 deaths among people with HIV (95% UI: 132 000–193 000). … The estimated number of deaths officially classified as caused by TB (i.e. those among HIV-negative people) in 2023, at 1.1 million, was almost double of the number of deaths caused by HIV/AIDS (0.63 million). … Now that COVID-19 has receded as a global public health emergency, in 2023 TB probably returned to being the leading cause of death from a single infectious agent." ”
- 出典データ
- 2024-10-29
- アクセス日
- 2026-04-11 · アーカイブ版
- 計算過程
- 1.09M HIV-negative + 161K HIV-positive = ~1.25M total annual TB deaths globally for reference year 2023. Divided by ~8 billion global population gives an annual per-capita hazard of 1.56 × 10⁻⁴; compounded over 60 adult years yields 1 − (1 − 1.56e-4)^60 ≈ 9.3 × 10⁻³, i.e. roughly 1 in 108. The ~95% uncertainty interval on HIV-negative TB deaths alone (0.98–1.20 million) plus the HIV-positive contribution drives the uncertainty band used in the normalized figure.
- 独立性
- WHO Global TB Report is the primary programmatic pipeline — country-reported case/death notifications aggregated and modelled by the WHO Global TB Programme. Methodologically distinct from IHME's GBD Cause of Death Ensemble model (cited below), which uses overlapping upstream vital registration data but independent modelling; the two anchors genuinely triangulate the global figure.
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[3] Lancet Infectious Diseases / GBD 2021 Tuberculosis Collaborators — Global, regional, and national age-specific progress towards the 2020 milestones of the WHO End TB Strategy: a systematic analysis for the Global Burden of Disease Study 2021 検証済み
Global, regional, and national age-specific progress towards the 2020 milestones of the WHO End TB Strategy: a systematic analysis for the Global Burden of Disease Study 2021- 統計値
GBD 2021 estimated 9.40 million (95% UI 8.36–10.5) TB incident cases and 1.35 million (1.23–1.52) TB deaths in 2021. Global TB mortality fell ~12% between 2015 and 2020 — short of the WHO End TB Strategy 35% target. Mortality decline was 35.3% in children under 5 but only 3.3% in adults 70+.- 抜粋
“"The GBD 2021 study estimated 9.40 million (95% uncertainty interval [UI] 8.36 to 10.5) tuberculosis incident cases and 1.35 million (1.23 to 1.52) deaths due to tuberculosis in 2021. … Globally, between 2015 and 2020, the all-age tuberculosis incidence rate declined by 6.3% and tuberculosis mortality declined by 12%, both falling short of the WHO End TB Strategy 2020 milestones of 20% and 35% reductions, respectively." ”
- 出典データ
- 2024-07-01
- アクセス日
- 2026-04-11 · アーカイブ版
- 検証
- グラウンディング監査の際、抜粋を引用元から独立して再取得し、原文と一字一句一致することを確認しました。
- 計算過程
- GBD 2021 is an independent modeling exercise from IHME and is the peer-reviewed corroboration of the WHO programmatic figure. GBD estimates ~1.35M TB deaths in 2021 vs WHO’s ~1.4M; the two systems agree on order of magnitude and on the conclusion that TB remains the leading infectious cause of death globally. The spread between the two headline estimates (~1.25M WHO 2023 vs ~1.35M GBD 2021) is the main driver of the upper end of the uncertainty band.
- 独立性
- GBD is an IHME-led modeling exercise that uses its own cause-of-death pipeline and vital registration ensemble model, independent of WHO’s programmatic TB estimates. The two have known methodological differences (GBD typically reports slightly higher TB mortality than WHO) and are treated here as two genuinely independent anchors.
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[4] US Centers for Disease Control and Prevention (CDC) — Deaths Among Persons with TB: 2010–2022 (Reported Tuberculosis in the United States, 2024)
Deaths Among Persons with TB: 2010–2022 (Reported Tuberculosis in the United States, 2024)- 統計値
858 deaths among US persons with TB in 2022 (most recent year with death data); of these, 349 (41%) were related to TB disease or TB therapy. Annual totals 2010–2022 range from 769 to 944.- 抜粋
“"In 2022, the most recent year for which death data are available, 858 deaths were reported by TB programs. … Of 858 deaths, 349 (41%) were related to TB disease or TB therapy. … Among 2022 deaths, 246 (29%) were among persons who were dead at diagnosis and 612 (71%) were among persons who died after diagnosis." ”
- 出典データ
- 2024-10-24
- アクセス日
- 2026-04-11 · アーカイブ版
- 計算過程
- CDC reports ~858 deaths per year among US persons with TB in 2022 but classifies only ~349 (41%) as actually caused by TB disease or therapy. Against a US population of ~335 million, the TB-attributed figure is ~1.0 × 10⁻⁶ per year — roughly 1 in a million per year, or ~6 × 10⁻⁵ (1 in ~16,000) compounded over 60 adult years. That is approximately 150 times lower than the global average and is the basis for the “US / Western Europe / Japan” row in the regional breakdown.
- 独立性
- CDC US TB surveillance is a completely separate data pipeline from both WHO programmatic estimates and IHME’s GBD model. It is used here solely as the non-endemic anchor and is not in the triangulation of the global figure.