Dr. John Lambert:

I agree with the Chairman. One cannot do a PET scan on everybody with long Covid but if a well researched list of symptoms, such as contact with Covid, symptoms following the onset of Covid and a list of various symptoms, was established, that would be of benefit. It would be useful to have a definition. Some people call it long-haul Covid. Some places say that if a patient has had if for more than one month, it is long Covid. The standard is that if it persists for more than three months, it is long Covid.