Hantavirus clusters and exposure groups
Live list of identified hantavirus clusters — outbreak networks, shared exposure events and transmission chains.
mv-hondius
84 cases
MV Hondius outbreak
Cluster originating from the MV Hondius expedition cruise (Andes orthohantavirus). Includes passengers and crew who disembarked in April 2026.
april-24-flight
3 cases
April 24th flight cluster
Passengers and crew of a charter flight from St Helena to Johannesburg on April 25, 2026, sharing transit with MV Hondius evacuees.
background
19 cases
Background / sporadic cases
Sporadic background hantavirus cases unrelated to the MV Hondius cluster — typically rodent-exposure-related infections in endemic regions.