When a person is given a vaccination immunity to certain pathogens develops.
Which of the effects of vaccination are correct?
1) production of antibodies to protect against future infections
2) results in artificial active immunity
3) stimulation of appropriate lymphocytes
1, 2 and 3
2 )
1 and 2 only
3 )
1 and 3 only
4 )
2 and 3 only
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