A hantavirus cluster surfaced aboard the MV Hondius cruise ship, where at least seven passengers tested positive for the Andes strain. Health officials reiterated WHO guidance that the virus spreads only through close, prolonged contact, echoing statements from U.S. authorities. Critics argue the reassurance ignores the ship’s crowded, humid environment and recent superspreading evidence. The incident sparked immediate quarantine measures on the vessel.

Researchers revisiting the 2018 Epuyén outbreak in Argentina found a median reproduction number of R0 of 2.1, meaning each case infected roughly two others. Airborne transmission experts cited respiratory secretions as a likely route, a pattern resembling early COVID‑19 spread. With incubation periods extending up to 40 days, containment proved far more complex than initially thought.

On April 25 a Dutch passenger fell ill after flying from St. Helena to South Africa, later dying en route. South Africa’s health ministry disclosed 97 possible contacts, 90 of whom are under daily temperature checks. WHO recently broadened its definition to include close‑proximity exposure in shared spaces, yet the guidance still lags behind lessons learned from COVID‑19, leaving airlines and cruise operators to reassess safety protocols.