Vaccination’s Impact on Autoimmune Disease Risk After COVID-19

There is now an established risk between SARS-CoV-2 infection and the subsequent development of autoimmune diseases. However, what remains less clear is how vaccination may alter this risk. A recent paper published in JAMA Infectious Diseases titled “Autoimmune Sequelae After Delta or Omicron Variant SARS-CoV-2 Infection in a Highly Vaccinated Cohort” explored this issue.

The study examined the risk of developing new autoimmune diseases following a COVID-19 infection in a highly vaccinated population compared to uninfected controls. The study followed more than 1.7 million patients with and without COVID-19 infection and found no significant increase in the risk of new-onset autoimmune diseases when analyzed as a whole. However, when disease severity was factored in, the researchers did find an association between hospitalization for COVID-19, and the development of inflammatory bowel disease and bullous skin disorders. They also noted an elevated risk of vasculitis in breakthrough Omicron infections, but not in those who had received a COVID-19 booster.

This data suggests that vaccination helps reduce the likelihood of new-onset autoimmune diseases following COVID-19 infection. However, more research is needed to fully understand the association between COVID-19 and the risk of autoimmune diseases.

Citation

Wee LE, Lim JT, Tay AT, et al. Autoimmune Sequelae After Delta or Omicron Variant SARS-CoV-2 Infection in a Highly Vaccinated Cohort. JAMA Netw Open. 2024;7(8):e2430983. doi:10.1001/jamanetworkopen.2024.30983