Although researchers continue to debate the exact location where the pandemic began, there is no credible evidence that anything other than H1N1, a type of influenza A virus, was responsible for it.

Part I: An abrupt introduction to Spanish influenza -- The great shadow -- Part 2: Spanish influenza: The first wave--spring and summer, 1918 -- The advance of the influenza virus -- Three explosions- ...

Question: In McLean County, what is the big difference between the COVID-19 pandemic and the famed Spanish Flu pandemic of 1918?

Periodically, the yearly flu transforms into a particularly virulent strain, like the Spanish flu that killed millions of people in 1918. How do these pandemic strains arise? Aa Aa Aa Although most ...

The flu virus is constantly evolving, meaning immunity from past infections or vaccinations may not fully protect against new strains. These mutations are why last year’s flu vaccine may no longer be ...