How did the other 18 COVIDs go unnoticed?
The Other COVIDs
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Explain Bear
Listen up, buttercup. This joke is playing on the fact that COVID-19 was a big deal because it was new. The joke asks how the previous 18 COVIDs went unnoticed. The joke is stupid because COVID is the abbreviation of "Coronavirus disease" and 19 refers to the year it was discovered (2019). There weren't 18 previous COVIDs, ya dingus!