Some, however, insist that vampires are real creatures, who hunt alone or in bands that roam the streets of large cities looking for lone victims who will not be missed. These creatures, believers say, die when exposed to sunlight, cannot enter churches, and have an aversion to religious symbols such as crosses and to holy water. In addition, they are said to be repelled by garlic. (Some say that these things can kill a vampire, but others believe they only drive away a vampire.)