Online self-reported COVID-19 symptom checkers may delay treatmentThe US and UK digital COVID-19 symptom checkers consistently suggest less healthcare contact than Singapore's and Japan's, which may cause more serious outcomes, according to a study released yesterday by BMJ Health & Care Informatics.While all four checkers failed to appropriately triage neutropenic sepsis, or sepsis in those with low white blood cell count, the US and UK checkers consistently suggested no or delayed medical care for severe COVID-19, bacterial pneumonia, and sepsis.The researchers evaluated the four symptom checkers using 52 simulations involving common COVID-19 symptoms, age, symptom duration, and health conditions.