Fauci, long Covid impairs the body system without any signs, and that's why it has not attracted much attention as a death rate.
There is no test for long Covid – its precise causes remain mysterious and little is known about how it interacts with other medical and physical conditions.
The World Health Organization (WHO) believes that between 10% and 20% of Covid-19 survivors have been left with lasting symptoms including breathlessness, fatigue, and cognitive dysfunction that can persist long after the acute infection has resolved.
The Centers for Disease Control and Prevention estimates that 1 in 5 people who contract the virus suffer lingering symptoms.