疾患比較
Hantavirus (Andes) vs COVID-19
アンデスハンタウイルスは、最もよく質問される他の新興ウイルスと実際にどう比較されるのか？すべての数値はWHOとCDCのファクトシートから直接引用。
最終審査: 2026-05-09
Hantavirus (Andes) vs COVID-19
| 指標 | ANDV | COVID |
|---|---|---|
| 致命率 | 30–40% | ~0.5–1% IFR (ancestral, pre-vaccine) |
| R0（基本再生産数） | <1 (rare P2P clusters) | 2–3 (ancestral); higher for later variants |
| 潜伏期間 | 2–4 weeks (up to 6) | 2–14 days (median 5) |
| 感染経路 | Inhaled rodent excreta; rare person-to-person (ANDV only) | Respiratory aerosols and droplets; pre-symptomatic spread |
| ヒトからヒトへの感染 | 限定的 | あり |
| 治療法の有無 | Supportive care, oxygen, ECMO; ribavirin investigational | Antivirals (nirmatrelvir/ritonavir, remdesivir); supportive care |
| ワクチンの有無 | None licensed | Multiple licensed mRNA, viral-vector and protein subunit vaccines |
| 地理的分布 | Argentina, Chile, with imported clusters worldwide (2026) | Global pandemic since 2020; now endemic seasonal circulation |
| 最初の確認年 | 1995 | 2019 |
| ウイルスファミリー | Hantaviridae (Bunyavirales) | Coronaviridae |
| 保有宿主 | Long-tailed pygmy rice rat (Oligoryzomys longicaudatus) | Bats (likely ancestral); intermediate host debated |
Hantavirus (Andes virus, ANDV)
ANDVAndes virus is the only hantavirus with documented person-to-person transmission. The 2026 MV Hondius cluster is being closely watched because its cruise-ship setting matches the close-contact conditions where ANDV chains have appeared historically.
Hantavirus (Andes virus, ANDV)
ANDVAndes virus is the only hantavirus with documented person-to-person transmission. The 2026 MV Hondius cluster is being closely watched because its cruise-ship setting matches the close-contact conditions where ANDV chains have appeared historically.
- 最初の確認年
- 1995
- ウイルスファミリー
- Hantaviridae (Bunyavirales)
- 保有宿主
- Long-tailed pygmy rice rat (Oligoryzomys longicaudatus)
COVID-19 (SARS-CoV-2)
COVIDSARS-CoV-2 spreads efficiently before symptoms begin, which is exactly the property that drove the 2020 pandemic. Hantaviruses lack this trait, which is the single biggest reason ANDV is not expected to behave like COVID.
COVID-19 (SARS-CoV-2)
COVIDSARS-CoV-2 spreads efficiently before symptoms begin, which is exactly the property that drove the 2020 pandemic. Hantaviruses lack this trait, which is the single biggest reason ANDV is not expected to behave like COVID.
- 最初の確認年
- 2019
- ウイルスファミリー
- Coronaviridae
- 保有宿主
- Bats (likely ancestral); intermediate host debated
出典：WHOおよび米国CDCのトピックページ。
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