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 12 languages. Country-level pins, strain reference, transparent sources, free public API.
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) — 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) — 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 — aerosolised dust from urine, droppings or saliva — except for Andes virus, which is 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.
Sin Nombre virus
Andes virus
Seoul virus
Hantaan virus
Puumala virus
Dobrava-Belgrade virus
Choclo virus
Laguna Negra virus
By country
44+ countries with documented hantavirus presence or surveillance activity.
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 12+ 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.
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.
<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.