Chapter 230 of 2363 min read
Immunity, vaccination, AIDS, cancer
Why this is asked: Active immunity (from infection or vaccination) is slow to build but leaves lasting memory cells; passive immunity, like the antibodies a newborn gets through colostrum, acts immediately but fades, because the recipient's own immune system never produced those antibodies and keeps no memory of them. HIV's real target is the helper T cell specifically, and it is the resulting collapse in helper T cell count that cripples both antibody production and cytotoxic responses at once.
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- •Identify the statement that is not correct.
- •Neoplastic characteristics of cells refer to: A. A mass of proliferating cells B. Rapid growth of cells C. Invasion and damage to the surrounding tissue D. Those confined to their original location Choose the correct answer from the options given below:
- •Which of the following types of immunity is present at the time of birth and is a non-specific type of defence in the human body?
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