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Health and Hygiene › ViewThe last case of smallpox was in …
A. 2019
B. 1796
C. 1840
D. 1977
Immunology › View
A small child suffers from repeated viral infections and has trouble clearing virally infected cells. Which arm of adaptive immunity is likely defective?
A. Complement
B. Cell-mediated immunity
C. Humoral immunity
D. NK-cells