Responses
Even if it doesn’t work on fully zombified people, they had no way of knowing that before trying ┗( T﹏T )┛
I think Chiga was following RE logic that fully turned zombies can't be cured. But Mishiba is like, "how do we know unless we try?"
He's right, but that makes his choice interesting. He can either feel guilty he killed someone early or feel he spared his friend an eternity of being a monster.
We'll never know tho cuz the mangaka didn't go further
So he kinda has to live with the fact that he killed his friend, and the possibility that he could have saved him if they just ran to the car and drove off, found the people with the vaccine and came back to try it on the friend...
(〜￣△￣)〜