Is there still hope?

Date: Unknown
Location: Liberty City
Odds of survival: 1%
Cause of outbreak:Airborne Virus (Unknown)
but wait.... there is vaccine! The government has been experimenting on a barge west of Happiness Island... you are at the Westminster Hotel hiding out and the other survivors are going to venture of into the unknown, you go, or stay with what little provisions and ammo you have with your trusty M4, or go and get the vaccine.

The government does not have enough food or housing for all of you, so you would get the vaccine, and be set back off.

There is a 25% chance you get infected from the vaccine, but at least it is hope.

What would you do, yes there are plenty of unknown factors in many options, so go ahead and think up and more things from here on out, finish my story.

The factors that the vaccine won't work or will infect me as well as the government taking action to kill off everyone as well as while I'm gone people will take my stuff so it is best to stay home

But there's the problem of getting to the barge. Is there any military support at all? And what kind of zombies are they? Fast, slow, smart, dumb. Way too many variables to make an effective decisions.

That being said, I'd bum rush for it.