When endemic, children develope immunity, so only young get infected. Survives in pseudomembranous exudate for months. Therapy begun based upon clinical and immunity history. ID - biochemicals 4. Respiratory support and anti-inflammatory for heart inflammation.
Adult immunity is weak since low incidence and no natural booster.
Vaccine has little effect on colonization. Patient anti-A does not seem to affect this strategy 1. ConjugateA-subunit to cancer antibodies.