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hayalci t1_jdjswfg wrote on March 24, 2023 at 10:15 PM

Reply to comment by im_thatoneguy in What happened to the old COVID variants, like Delta? Could they come back? by number1dork

In addition to r/brown_felt_hat's answer, Spanish Flu was around World War I, ravaged economies, poverty, illness, and a general lack of resources probably would have confounded its effects.