Choclo virus is endemic to Panama, where it produces a milder HPS than the South American Andes virus or the North American Sin Nombre virus. CFR is approximately 10% — high relative to most respiratory infections, low relative to other HPS-causing hantaviruses.
| Reservoir host | Pygmy rice rat (Oligoryzomys fulvescens) |
| Geographic range | Panama, primarily Los Santos and Herrera provinces |
| Disease syndrome | Hantavirus pulmonary syndrome (milder than other Americas strains) |
| Case fatality rate | ~10% |
| Vaccine | None licensed in most countries |
| Specific treatment | None. Supportive care. |
Choclo virus is endemic to Panama, where it produces a milder HPS than the South American Andes virus or the North American Sin Nombre virus. CFR is approximately 10% — high relative to most respiratory infections, low relative to other HPS-causing hantaviruses.
The virus is named after the Spanish word for corn (choclo) reflecting its association with rural agricultural exposure in the Azuero Peninsula.