My casual online search for information brought me to the Spanish flu... Holy crap, it makes the panic around Covid-19 look like a joke.
To steal bits from sources on the Spanish flu pandemic of 1918:
- It is estimated that one third of the global population was infected
- Estimates put the death toll at 3% to as high as 6% of the global population, all within 18 months
- This flu killed more people in 24 weeks than HIV/AIDS killed in 24 years
- More Americans died of the Spanish flu than in all the wars of the 20th century combined
- The virus triggers an overreaction of the body's immune system, which ravages the bodies of people with stronger immune systems (20 to 40 year olds)
- There were reports of death as quickly as 12 hours after initial symptoms
Here's a short excerpt on the symptoms from a YouTube video:
"In some people Spanish flu caused fevers that were so high people hallucinated. Some writhed in agonised muscle pain so bad, the doctors thought they had Dengue - also called break-bone fever.
It made some people temporarily or even permanently blind, deaf or paralysed. Some lost the ability to smell, some had strong vertigo and would fall over if they tried to walk.
Extreme ear infections developed very quickly - going from the first pain to the eardrums rupturing within only a few hours. Some had terrible headaches and double vision."
"Severe mucous secretions and inflammation made it hard for victims to breathe. Some people coughed so hard they tore their abdominal muscles. Doctors doing autopsies saw lungs so damaged that they resembled those of people who died from poisonous gas in the war. Some people developed a symptom most physicians had never seen before - tiny puffs of air would leak out from tears in the lungs and get trapped beneath the skin, puffing up in little pockets all over their bodies. When they moved, the pockets would crackle like a bowl of rice-crispies, according to one nurse."
"Some people developed hemorrhagic fever which, like Ebola, cause it's victims to bleed. An army report described the flu as a rapidly escalating infection and lungs choked with blood, fatal in from 24 to 48 hours. Some people bled from their nose, their ears, and their eyes. Some people with the 1918 flu became so oxygen-starved they began to turn blue or even looked black - a condition called cyanosis. People reportedly turned so dark that it was difficult to distinguish white people from people of colour. For this reason the flu picked up the nickname the Blue Death, and many wondered if the Black Death had returned. When people began turning blue, doctors knew they wouldn't survive more than a few hours."
"The flu was also terrifying because it could kill so quickly. Many victims died within a day or two, or even hours of showing their first symptoms."
- Source link
The death toll is commonly quoted as more than WW1 and WW2 combined. Just a hair over 100years ago and most people don't even know it happened.