I dont think this flu is the “big” one. But any year we could see it come like a thief in the night and this time it could easily kill half a billion or so.
Quote:
The 1918 flu pandemic (commonly referred to as the Spanish flu) was an influenza pandemic that was first found in the United States, appeared in West Africa and France and then spread to nearly every part of the human populated planet. It was caused by an unusually severe and deadly Influenza A virus strain of subtype H1N1. Many of its victims were healthy young adults, in contrast to most influenza outbreaks which predominantly affect juvenile, elderly, or otherwise weakened patients.
The Spanish flu pandemic came in three waves[1] lasting from March 1918 to June 1920,[2] spreading even to the Arctic and remote Pacific islands. While older estimates put the number of killed at 40–50 million people, current estimates are that 50 million to 100 million people worldwide died, higher than the number killed in World War I.[3] This extraordinary toll resulted from the extremely high infection rate of up to 50% and the extreme severity of the symptoms, suspected to be caused by cytokine storms.