Cases by country
Hantavirus cases by country in 2026
These are the national figures of confirmed cases during 2026 in each country. They are regional context of the disease's endemic behavior and do not sum to the active MV Hondius cruise outbreak (broken down separately on the home page). Last updated: May 8, 2026 UTC.
| Country | Confirmed | Deaths | Last case | Period | Sources |
|---|---|---|---|---|---|
| Argentina National Epidemiological Bulletin Week 16: 42 confirmed cases in 2026. Affected provinces: Buenos Aires, Salta (NOA epicenter with highest incidence 0.60/100k), Santa Fe, Jujuy, Río Negro, Entre Ríos and Chubut. Deaths: ~13 estimated from reported lethality above 30% on yearly cases (authority publishes lethality by season, not calendar year; 2025-26 season: 101 cases / 32 deaths). | 42 | 13 | April 26, 2026 | Brote 2026 | |
| Chile Lethality of 33% in 2026. Cases in 9 of 16 regions: Metropolitana, O'Higgins, Maule, Ñuble, Bío Bío, La Araucanía, Los Ríos, Los Lagos and Aysén. | 39 | 13 | April 30, 2026 | Brote 2026 | |
| United States No CDC YTD 2026 breakdown yet. CDC publishes national counts annually; state health departments are the most up-to-date source. Pending official publication. | 0 | 0 | — | Brote 2026 | |
| Cabo Verde No autochthonous cases. The MV Hondius cruise ship remains anchored offshore with passengers under monitoring — outbreak cases are counted in the multi-country outbreak event and are not attributed to Cabo Verde as local cases. | 0 | 0 | — | Brote 2026 | — |
| Brazil Pending initial update from the Brazilian Ministry of Health. | 0 | 0 | — | Brote 2026 | — |
| Panama Pending initial update from MINSA. | 0 | 0 | — | Brote 2026 | — |
| 0 | 0 | — | Brote 2026 | — | |
| 0 | 0 | — | Brote 2026 | — | |
| 0 | 0 | — | Brote 2026 | — | |
| Spain No usual autochthonous transmission. MV Hondius passengers under ECDC monitoring within the multi-country cluster. | 0 | 0 | — | Brote 2026 | — |
Figures may change as health authorities confirm suspected cases. Each case is counted once following the documented methodology.