Exhibit of shoddy analysis masquerading as insight. Plenty of reasons why Case Fatality Rates (CFR) may be low in new outbreak States, which has nothing to do with #COVID19 being "FAR LESS deadly."
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Early US epidemic (eg, in NY,NJ,CT), testing capacity was limited resulting in fewer cases and was restricted to mostly hospitalized pts late in disease progression. Less precautions and limited knowhow / preparedness for disease management. All contributed to higher CFR.
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With testing ramp, we are now detecting cases in community and sampling broader population (including younger people). Much improved knowhow about the virus, disease management, and precautionary measures. Some mitigation efforts still in place. All contribute to lower CFR.
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It's irresponsible to advance unsubstantiated claims (eg, virus becoming less deadly, epidemic slowing, etc) w/o controlling for such differences. Generalizations about the disease w/o proper context (esp. when comparing States) can lead to flawed conclusions.
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