Limitations
Our single-Centre study has several limitations. Our study is
longitudinal and assessed participants over the telephone, which the
patients’ judgment could have influenced. This limitation can be
overcome by using the widely applied Chalder Fatigue Scale at a
post-COVID clinic setting and describing fatigue’s persistence at six
months and beyond. Finally, this study was not free from the probability
of bias, as the subjects had been familiar with the idea of post-COVID
fatigue and other symptoms.