How much does Medicare pay to cover type B expenses of non-hospital health care services? a. 80%
b. 50%
c. It varies depending on what the individual patient can afford.
d. It varies depending on what the health provider charges.

Keeps you from getting lung cancer from smoking

Immunization is the introduction of a foreign substance to provoke  the immune response system.  immunizations are the same as vaccinations. it introduces foreign (but dead/ weakened) illnesses to train the body to fight against them. specific viruses and bacteria have specific antigens, antigens act sort of like name tags. these name tags the immune system recognize what's dangerous to the body and what's safe.