The immune system<>typically recognizes<>$$$The immune system<>destroys<>foreign cells or substances that may cause disease$$$foreign cells or substances<>may cause<>disease
Finally, it has been proposed that the initial polio infection causes an autoimmune reaction, in which the body's immune system attacks normal cells as if they were foreign substances.
The immune system typically recognizes, attacks, and destroys foreign cells or substances that may cause disease.
Which body system typically recognizes, attacks, and destroys foreign cells or substances that may cause disease?