When I was young I found a comic at a thrift store. The comic in name I guess was called (BLACK) .

What stuck to my memory was the antagonistic, a large bat like creature with human intelligence but was greatly ill like disease ridden. Soon it got worse and his kind were soon acting like a virus spreading everywhere killing and eating everyone. And I don't know what happens next I only had one chapter, and I try looking it up but no luck. I guess it's lost to time