Examlex
The _____statement in SQL combines rows from two queries and returns only the rows that appear in the first set but not in the second.
Lymphocytes
A type of white blood cell essential for immune responses, playing a crucial role in recognizing and fighting off pathogens.
Secondary Immune Response
The rapid production of antibodies induced by a second exposure to an antigen several days, weeks, or even months after the initial exposure.
Antigenic Determinants
Specific parts of a foreign protein or pathogen that the immune system recognizes and responds to, also known as epitopes.
Sabin Polio
A type of oral polio vaccine developed by Albert Sabin that contains a weakened form of the polio virus, used to induce immunity against poliomyelitis.
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