I'm glad you brought this up, because it's a verse many people use to support the doctrine of original sin. This idea of being IN ADAM has been adulterated as this verse is NOT saying what has been claimed.
The death spoken of here is physical death, and "be made alive" is referring the resurrection from the dead (the just and the unjust are resurrected). Acts 24:15KJV
We see the subject being introduced right here. Christ died physically and rose physically.
1 Cor. 15:3-4 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures; And that he was buried, and that he rose again the third day according to the scriptures:
That's why ALL die and All are "made alive". It's talking about our bodies. That's what the whole chapter is about. Here' the clincher that is most often left out of the "proof texting".
1 Cor. 15:21 For since by man came death, by man came also the resurrection of the dead.