Autoimmunity Quiz

It is caused by antibodies against foreign antigens.

It may cause tissue injury through antibodies against self antigens or T cells reactive with self antigens. (correct)

It is estimated to affect 1% to 5% of the population in developed countries.

It only affects systemic tissues and organs.

Less than 1%

20% to 25%

5% to 10% (correct)

10% to 15%

They may be organ-specific or systemic, with widespread tissue injury and clinical manifestations. (correct)

They do not cause tissue injury.

They only affect a few organs.

They are caused by antibodies against non-self antigens.