Experts who fear Covid could raise the risk of dementia – Daily Mail
On the tail of the Spanish influenza pandemic that killed some 50 million people worldwide at the end of World War I, a strange crippling illness spread through Europe, causing severe lethargy, nerve problems, headaches and confusion.
Scientists named the syndrome encephalitis lethargica — and it is estimated to have afflicted more than one million people at the time, according to the journal Brain.
Thousands were left with permanent neurological damage that rendered them all but comatose. The 1990 hit film Awakenings dramatised the neurologist and author Oliver Sacks’s attempts to revive victims who had been trapped for decades in motionless, speechless passivity.
Many experts believe that encephalitis lethargica was an after-effect of Spanish flu and that the virus travelled to victims’...