Examlex
Worldwide, only about 15 percent of infants receive daily care from _____.
Foreign Antigens
Substances that are recognized by the immune system as non-self, triggering an immune response.
Self-antigens
Antigens present on the body's own cells; usually tolerated by the immune system.
Transplanted Tissues
Tissues moved from one body and placed into another, either in the same person or between individuals, to replace damaged or defective tissues.
Plasma Proteins
Proteins present in blood plasma, serving various functions such as clotting, defense against pathogens, and transportation of substances.
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