It does. This was the mg-bac vaccine so you warm to 72 then use with in two hours. I knew I had to either wait until my incubators are empty or do two rounds and they recommend two rounds. So I ordered two at once so only one shipping cost.Sorry…explain the vaccine…are you getting another bottle or are you able to keep that vaccine until your next ones hatch? I’m still trying to decide how to do mine. I currently only have 5 that have made it this far. I am on day 15 and need to figure out what I’m going to do. I ask though because I thought it had to be used the same day.
Editing to add I ordered through Jeffers because I had a coupon. Overnight shipping was $25
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