"... these symptoms also occur in about 5% of triple-vaccinated people who are exposed to the Delta and Omicron variants of the virus. Many of the symptoms, which include anhedonia, slowing of motor skills, low motivation and low energy, and short-term memory impairment, can persist for years and are thus, say the researchers, 'a major public health problem,' especially considering the vast number of people who are infected by #COVID every year."