1. Mild and resolved COVID-19 showed cognitive decline equivalent to a 3 loss of IQ points
2. Those with unresolved persistent symptoms, such as people with persistent shortness of breath or fatigue, had a 6 point loss in IQ.
3. Those who had been admitted to the intensive care unit for COVID-19 had a 9-point loss in IQ.
4. Reinfection with the virus contributed an additional 2-point loss in IQ, as compared with no reinfection.
5. Those with an IQ below 70 have intellectual disabilities that may require significant societal support
6.A 3 point shift in IQ will increase the number of U.S. adults with an IQ less than 70 from 4.7 million to 7.5 million – an increase of 2.8 million adults with a level of cognitive impairment that requires significant societal support.