139. Which of the following statement is false ?
(1) Active immunity develops after a lag period
(2) Active immunity is very effective in
immunodeficient host
(3) Passive immunity is used for the treatment of
infection
(4) No immunological memory is formed by passive
immunity
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(3) Passive Immunity is used for the treatment of Infection.
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Answer:
1 true
2 true
3 true
4 false
Explanation:
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