Discrepancy in ages is important to consider since COVID-19 is known to affect infants less than 1 year of age more severely.2 This may be due to low T-cell activation, reduced expression of ACE2 in the lungs and other developmental differences.2 Older patients are likely to have developed more comorbidities which may be the reason for the presentation of worse COVID-19 symptoms, rather than being due to their CHD alone. Keywords: Coronavirus; congenital heart disease; COVID-19; outcomes EN Coronavirus congenital heart disease COVID-19 outcomes 329 330 2 10/10/22 20210201 NES 210201 Haiduc et al attempt to summarise the current literature surrounding the effect of congenital heart disease (CHD) on COVID-19 outcomes.1 We propose further consideration of the following factors: age, type and severity of CHD, and comorbidities.