Figure 4
From: The decline of malaria in Finland – the impact of the vector and social variables

June – July temperature in 1829 – 1960 from Helsinki (Finland) and the annual malaria frequency trends in Finland in 1750 – 1960.
From: The decline of malaria in Finland – the impact of the vector and social variables
June – July temperature in 1829 – 1960 from Helsinki (Finland) and the annual malaria frequency trends in Finland in 1750 – 1960.