It is very important that researchers define exactly what a term such as "recovered" actually means beyond the ivory towers of academia where recovered can actually be a deterioration as the PACE Trial demonstrated. A return to pre illness health / activity allowing for age (as decades have passed for some) would be a more readily accepted use of the word.
recover - return to a normal state of health, mind, or strength synonyms:recuperate, get better, get well, convalesce, regain one's strength, regain one's health, get stronger, get back on one's feet, feel oneself again, get back to normal, return to health.
