Added Scotland as a third country for sleepy sickness vs flu
Read eight Scottish Registrar General reports (1930 to 1937) for influenza and encephalitis lethargica deaths, 1921 to 1937. No link in the same year or a year later. Three countries now show no consistent tie between flu waves and sleepy sickness.
How it connects
This step led us to
Scotland 1921 to 1937: sleepy sickness peaked in 1924 and did not follow the flu years
This step is about
What caused encephalitis lethargica, the 'sleepy sickness' of 1917 to 1928?
This step and then
Tested the cocoliztli epidemics against the Mexican Drought Atlas
This step came after
Compared China's 11th-century comets with Europe's