I worked for some years in a lab testing for auto-immune conditions - we called it that - a condition. I suppose other labs might have labelled it otherwise.
Would you call cancer a disease? I wouldn't.
But I suppose this is just arguing over semantics.
I guess it depends on your definition of disease, which is technically broad in the literal sense of an abnormal negative medical condition. A condition in itself can be positive or negative and also has an implied connotation that it's just the current state.
Seem to be hitting that original argument about labeling things that are on a spectrum, where a condition could becalled a disease once it reaches a cetain state. Disease does imply a level of sickness and incapacitation, and maybe a permanent state?
Alternatively we could classify and reclassify disorders but the general public gets left way behind.
EDIT: There's also the notion that a disease is something you catch, which given our understanding of viruses and bacteria in triggering various diseases and conditions (and potentially some cancers) maybe excludes genetic and environmentally caused conditions?
COVID-19 is the disease caused by the SARS-CoV-2 virus like AIDS is caused by HIV.
It gets complicated where they don't know or understand the cause like a lot of autoimmune diseases.