Select your answer:
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Immunology › ViewA blood sample is processed, and the resulting serum is pink. This indicated:
A. a normal serum sample
B. a hemolyzed serum sample, but hemolysis is common and can be ignored.
C. a hemolyzed serum sample, which may adversely affect testing.
D. definite evidence of bacterial contamination
Vaccines › View
Which was the first vaccine discovered?
A. Chicken pox
B. COVID 19
C. Small pox
D. TB