Clinical observations show that Covid-19 affects certain individuals in a way that they can experience symptoms of the virus for weeks or months despite having virologically recovered, Dr. Anthony Fauci said during a Senate hearing on Wednesday.
These individuals are called 'long haulers,'" he said.
"A number of individuals, who virologically have recovered from infection, in fact, have persistence — measured in weeks to months — of symptomatology that does not appear to be due to persistence of the virus," he told the Senate committee.
These individuals have fatigue, myalgia, fever and involvement of the neurological system as well as cognitive abnormalities such as the inability to concentrate, Dr. Fauci further reported in his remarks.
Additionally, "a disturbing number of individuals" who have completely recovered and apparently are asymptomatic, are found to have "inflammation of the heart," when they have sensitive imaging technology such as Magnetic Resonance Imaging [MRI,] he said.
"These are the kind of things that tell us we must be humble, that we do not completely understand the nature of this illness," Dr. Fauci added.