Figure 7
From: The decline of malaria in Finland – the impact of the vector and social variables
The number of cows per farm and the annual malaria frequency trends in Finland in 1750 – 1960.
Figure 7 | Malaria Journal
From: The decline of malaria in Finland – the impact of the vector and social variables
The number of cows per farm and the annual malaria frequency trends in Finland in 1750 – 1960.