system
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human
ELI5: Can a mosquito become intoxicated by consuming blood from somebody who has been drinking alcohol? Is it totally impossible, or is there a BAC level where it becomes feasible or something such as that? Do they digest alcohol like humans?

I was sitting around a bonfire last night killing a case and a handle with some buddies; we all got bit to high heaven by a belligerent troupe of  mosquitoes, as I live near a marshy area. As I watched my hammered friend kill the Bacardi bottle, I thought to myself: could a mosquito also partake in his buzz by drinking his blood? Do mosquitoes digest alcohol in a similar way as humans, making it possible for them to become drunk?
gpt
Sadly for hard-partying vampires everywhere, it would be really hard to get even a light buzz by drinking a drunk person's blood. 

Someone so drunk that they are passed out and near death has about 0.5% blood alcohol. That's still only one-tenth the alcohol in a typical beer (~5%). So, a super-drunk person's blood is 10 times weaker than beer.

The average human body contains about 160 ounces (5.5 liters) of  blood, which is a little over 13 beer-bottles worth. So if you got someone so drunk that they passed out and were almost dead, and then drank all the blood in their entire body, it would still only be like drinking a little over one beer. 

Insects can also get drunk. But they probably wouldn't get drunk from a drunk person's blood any more than you could.