Detailed Twitter thread: IBD is an autoimmune condition, which studies have shown increases a person’s chances of Long Covid. Now doctors are seeing both de novo IBD after Covid and worsening of existing IBD. (see this thread). More research is needed. Another reason for high grade mask & ventilation.
"scientists believe some symptoms may be caused by autoimmunity—in which the immune system is turned on to fight an incoming pathogen, but mistakenly recognizes the body’s own cells as targets. How Effects on the Brain Can Produce Long COVID -
"So far, COVID-19 infections are linked to these different autoimmune conditions: Guillain-Barre syndrome Idiopathic thrombocytopenic purpura Autoimmune hemolytic anemia Multisystem inflammatory syndrome in children (MIS-C) Diabetes"