Pathogens, immunity, AIDS, cancer, drug abuse, vaccines.
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Q1 · Human Health and Disease (Class 12) · EASY
Which of the following diseases is caused by a protozoan parasite?
Q2 · Human Health and Disease (Class 12) · MEDIUM
Active immunity in humans can be developed by which of the following methods?
Q3 · Human Health and Disease (Class 12) · MEDIUM
A person infected with HIV may not show symptoms for several years, but during this period, the virus primarily targets and destroys which type of immune cells?