alt Hacker NewsMalaria was endemic in Finland until the beginning of the 20th century, the people used to lived inside smoke-heated chimneyless log cabins together with animals, mosquitoes... and Plasmodium vivax...
Malaria was endemic in Finland until the beginning of the 20th century, the people used to lived inside smoke-heated chimneyless log cabins together with animals, mosquitoes... and Plasmodium vivax...
That's the "treat cases" element of the story.
No human cases means no reservoir for the spring's new mosquitos to draw from. It's why Florida's safe these days, despite the climate.