Fang L, Karakiulakis G, Roth M. Are patients with hypertension and diabetes mellitus at increased risk for COVID-19infection? Lancet Respir Med 2020; 8: e21—In this Correspondence, reference 4 has been removed from the end of the sentence “The expression of ACE2 is substantially increased in patients with type 1 or type 2 diabetes, who are treated with ACE inhibitors and angiotensin II type-I receptor blockers (ARBs).” This correction has been made to the online version as of May 18, 2020.