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Hantaflow
Active hantavirus surveillance

The hantavirus outbreak,
tracked in one place.

Hantaflow aggregates real-time hantavirus signals from CDC, WHO, ECDC and 60+ national agencies and news outlets across 17 languages. Country-level pins, strain reference, transparent sources, free public API.

Open live map About hantavirus /api/signals.json
18 countries
345 signals (30 d)
29 sources
Updated 1m ago · show sources
What changed in the last 24 hours

100 new signals across 6 countries

Last 7d: 193 signals
Top movers (24h)
  1. United States
    +3 24h
  2. Canada
    First in 7d +1 24h
  3. Mexico
    First in 7d +1 24h
  4. Spain
    +1 24h
  5. United Kingdom
    First in 7d +1 24h
Top-tier items (24h)

No official or surveillance items in the last 24 hours. Just news mentions.

Snapshot 1m ago All signals →
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What is hantavirus?

Hantavirus is a genus of rodent-borne viruses (Orthohantavirus, family Hantaviridae) that cause two distinct human syndromes depending on which strain a person is exposed to:

  • Hantavirus Pulmonary Syndrome (HPS) is the form prevalent in the Americas. Caused by New World hantaviruses such as Sin Nombre, Andes, Choclo and Laguna Negra. Case-fatality rates are high (Sin Nombre ~36%, Andes ~25–40%).
  • Hemorrhagic Fever with Renal Syndrome (HFRS) is the form prevalent in Europe and Asia. Caused by Old World hantaviruses such as Hantaan, Seoul, Puumala and Dobrava-Belgrade. Severity ranges from mild (Puumala <0.5% fatality) to severe (Hantaan ~5–15%).

Transmission is almost exclusively from rodent excreta to humans, via aerosolised dust from urine, droppings or saliva. The exception is Andes virus, the only hantavirus with documented person-to-person transmission in close-contact settings.

See symptoms, transmission, prevention, the strain reference and per-country detail in /countries.

Hantavirus strains

The eight strains driving the global hantavirus burden, with reservoir, region and case-fatality at a glance.

All strains →
SNV HPS

Sin Nombre virus

Deer mouse · United States
CFR: ~36% (HPS)
ANDV HPS

Andes virus

Long-tailed pygmy rice rat · Argentina
CFR: ~25–40% (HPS)
⚠ Person-to-person
SEOV HFRS

Seoul virus

Brown rat · Worldwide (urban)
CFR: ~1–2% (HFRS, mild form)
HTNV HFRS

Hantaan virus

Striped field mouse · South Korea
CFR: ~5–15% (HFRS, severe form)
PUUV HFRS

Puumala virus

Bank vole · Finland
CFR: <0.5% (mild HFRS, "nephropathia epidemica")
DOBV HFRS

Dobrava-Belgrade virus

Yellow-necked mouse · Balkans
CFR: ~10–12% (severe HFRS)
CHOV HPS

Choclo virus

Costa Rican pygmy rice rat · Panama
CFR: ~10–15% (HPS)
LANV HPS

Laguna Negra virus

Vesper mouse · Paraguay
CFR: ~12–25% (HPS)

By country

69+ countries with documented hantavirus presence or surveillance activity.

All countries →

Americas

14

Europe

29
+ 15 more →

Asia

18
+ 4 more →

Africa

7

Oceania

1

Frequently asked

All FAQ →
What is hantavirus? +

Hantavirus is a group of viruses (genus Orthohantavirus, family Hantaviridae) carried by rodents and transmitted to humans primarily through aerosolised excreta. Different strains cause different disease syndromes: Hantavirus Pulmonary Syndrome (HPS) in the Americas and Hemorrhagic Fever with Renal Syndrome (HFRS) in Europe and Asia.

Is hantavirus contagious between humans? +

For most hantaviruses, no. Transmission is from rodents to humans, not person-to-person. The single exception is Andes virus (ANDV) in southern Argentina and Chile, where person-to-person transmission has been documented in close-contact settings.

Where is the current hantavirus outbreak? +

See the live signal map. Hantaflow aggregates outbreak signals from CDC NNDSS, WHO Disease Outbreak News, ECDC, PAHO and reputable news outlets in 17 languages. The map updates every 10–60 minutes from authoritative sources.

What are the symptoms of hantavirus? +

Early HPS symptoms (3–8 days post-exposure) include fever, chills, severe muscle aches and fatigue. After 4–10 days, breathing difficulty rapidly develops as the lungs fill with fluid. HFRS adds renal involvement: lower-back pain, low blood pressure and reduced urine output. Both syndromes can be fatal. See /symptoms for the full clinical picture and a phased breakdown.

For developers and journalists

Public JSON API and embeddable map

Free, no-key access to the same data the map uses. CC BY 4.0: credit "Hantaflow" and the underlying source. Drop our embeddable map into your post in two lines.

/api/signals.json Embed widget RSS 
<iframe
  src="https://hantaflow.com/embed/map"
  loading="lazy"
  width="100%" height="500"
  style="border:0;border-radius:.75rem"
></iframe>

Disclaimer. Hantaflow is an information aggregator. It is not a medical service and does not provide medical advice. For clinical decisions, contact a qualified healthcare provider or your local public-health authority.