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Viral infections (e.g., influenza A, severe acute respiratory syndrome, and Middle East respiratory syndrome) can impair neuropsychiatric function, and inflammation can adversely affect cognitive function. In a study examining the effects of COVID-19 on cognition, 29 otherwise healthy patients in China (age range, 30–64; 18 men) who had recently been hospitalized for COVID-19 and subsequently recovered and 29 age-, education-, and sex-matched healthy controls underwent neuropsychiatric testing (attention and memory, executive function, processing speed, and perceptual abilities).
Recovered COVID-19 patients were tested usually 2 to 3 weeks after admission and after they had two negative nucleic acid tests. During acute infection, COVID-19 pa…