Shalini Rathod 278 Questions 306 Answers 257 Best Answers 151 Points View Profile 0 Poll Shalini RathodBeginner Asked: July 22, 20212021-07-22T17:48:01+05:30 2021-07-22T17:48:01+05:30In: Education Which of the following conveys the longest-lasting immunity to an infectious agent? 0 Poll ResultsPlease login to vote and see the results. Participate in Poll, Choose Your Answer. (a) Active immunity (b) Passive immunity (c) Both (a) and (b) (d) None of the above Which of the following conveys the longest-lasting immunity to an infectious agent? Share Facebook You must login to add an answer. Username or email* Password* Remember Me! Forgot Password?