Prevalence of COVID-19 and seroprevalence to SARS-CoV-2 in a rheumatologic patient population from a tertiary referral clinic in Israel.

Background: It is unclear if the prevalence of COVID-19 in rheumatologic patients is similar to that of the general population. There are no reports of seroprevalence of SARS-CoV-2 in these patients.

Aims: To investigate prevalence of COVID-19 cases and seroprevalence among rheumatologic patients and the risk factors for infection.