Yeah, at least to the degree that we are used to in modern times. I'm sure you are aware of this since you posted that chart, but for others, as I understand it there was some flu before electrification since things like solar magnetic activity could also activate the flu virus (or perhaps exosome), hence the name influenza because it was traditionally thought to be bought about by the influence of the stars.100% Nick. There was no flu until electricity.
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