revise The bias that may be selected would be Selection bias which arises when the acquired data does not reflect the total population. For example, collecting data only from hospitalized COVID-19 patients will skew the results toward more severe instances, Measurement bias would occur when data obtained is erroneous or unreliable. For example, self-reported symptoms may be incorrect due to poor recollection or reporting Reporting Bias: This would occur when certain sorts of information are reported more frequently than others. For example, people may report positive COVID-19 test findings more frequently than negative ones