Vampire, or dracula, is a unique feature in Western culture. I recently watched three of these series "Underworld", three "Dracula", and three "Blade Warrior". Each has its own characteristics and emphasis. The legend of the night is more mysterious, Dracula is taking the route of adventure + horror, and the blade is almost a sci-fi action movie decorated with fangs and ghost faces. This difference is clearly reflected in the explanation of the cause of vampires. Blade's explanation is a typical sci-fi style - virus mutation and infection lead to human biological mutation. Dracula is in a retro style. The most convincing theory of Zongli cult is "Underworld", which I personally like very much. The legends in the film belong to legends, but they can all find suitable explanations. Animal bites may indeed lead to individual mutations. The family inheritance of vampires and werewolves involves the genetic problem of the current fever. Isn't it just implying the essence of the theory of cellular immunity? Oh, I'm so talented, it's all about watching movies!
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