We seek to study the behaviour of Coronavirus infection in patients with rheumatological and/or autoimmune comorbidities, understood as a particular pathophysiological universe with its own risks and eventual benefits, until now fully hypothetical to be confirmed by means of real and recent evidence. On March 12, 2020, an initiative called the Global Alliance for COVID-19 in Rheumatology (The COVID-19 Rheumatology Alliance) arises, as a rapid response of international coordination whose ultimate goal is to serve as help or guideline for all those doctors who seek be faced with receiving, evaluating, understanding and caring for a patient with rheumatological and / or autoimmune diseases in relation to the imminent risk of COVID-19.

Within this context, this study seeks to use the information registered by the Fundación Santa Fe de Bogotá University Hospital as a participating centre. It is intended, under a prospective cohort methodology, to identify, analyze and compare predictive factors of the clinical course of COVID-19 in patients with baseline diagnoses of rheumatological or autoimmune diseases with the intention of establishing well-founded parameters that contribute to the improvement in terms of strategies of prevention, management and prognosis; benefiting both directly treating physicians and patients, as well as indirectly a health system that is predicted to be pushed to the limit as time passes.

Inclusion Criteria:

• Older than 18 years.
• Have a diagnosis of a rheumatological disease and / or an autoimmune disease by meeting its own and standardized classification criteria.
• Confirmed diagnosis of COVID-19 by RT-PCR test
• Being a patient at the Fundación Santa Fe de Bogotá University Hospital.
• Be enroled in the registry of the Global Alliance for COVID-19 in Rheumatology.

Exclusion Criteria:

• Loss of follow-up due to referral to an institution other than the Fundación Santa Fe de Bogotá University Hospital, before documenting the outcome of his clinical picture.

Patients who have a confirmed or suspected COVID-19 infection and have been treated at the Santa Fe de Bogotá University Hospital.