There are four types of vaccines in clinical trials: whole virus, protein subunit, viral vector and nucleic acid (RNA and DNA), each of which protects people, but by producing immunity in a slightly different way.
gerardoboces4
ty for the answer to the question is how do I get the money to you and your family a very happy and prosperous New year to you and your family a very happy and prosperous New year to you and your family a very happy and prosperous New year to you and your family a very happy and prosperous New year to you and your family
Answers & Comments
Verified answer
Answer:
There are four types of vaccines in clinical trials: whole virus, protein subunit, viral vector and nucleic acid (RNA and DNA), each of which protects people, but by producing immunity in a slightly different way.