COVID-19 and Type 1 Diabetes: Addressing Concerns and Maintaining Control.

The worldwide outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been an unprecedented pandemic. Early on, even as the signs and symptoms of coronavirus disease 2019 (COVID-19) were first characterized, significant concerns were articulated regarding its potential impact on people with chronic disease, including type 1 diabetes. Information about the basic and clinical interrelationships between COVID-19 and diabetes has rapidly emerged. Initial rapid reports were useful to provide alerts and guide health care responses and initial policies. Some of these have proven subsequently to have durable findings, whereas others lacked scientific rigor/reproducibility. Many publications that report on COVID-19 and "diabetes" also have not distinguished between type 1 and type 2 (1). Available evidence now demonstrates that people with type 1 diabetes have been acutely affected by COVID-19 in multiple ways. This includes effects from limited access to health care, particularly during lockdown periods, and increased morbidity/mortality in infected adults with type 1 diabetes compared with peers without diabetes.