What person-to-person means here
It does not mean hantaviruses usually spread like COVID-19. It means close-contact transmission has been documented for Andes virus and needs careful public-health follow-up.
Andes virus
Andes Virus Person-to-Person Spread
Andes virus is unusual among hantaviruses because limited person-to-person transmission has been documented, mainly after close and prolonged contact.
Signals that raise attention
- A confirmed or probable Andes virus case.
- Close or prolonged contact with the case during the relevant period.
- International contact tracing or IHR coordination language in official reports.
- Severe respiratory illness after a plausible contact.
What it does not mean
It is not evidence that all hantaviruses spread easily between people, and it is not a reason to treat every respiratory illness as hantavirus.
Last updated
2026-05-16
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Editorially reviewed against WHO and CDC public-health sources. No clinician medical-review claim is made.
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Medical sources
WHO hantavirus fact sheetWHO Disease Outbreak NewsCDC hantavirus overviewCDC clinical overviewCDC prevention guidance
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