Chapter 4, Problem 4CT

Summary Introduction

To explain: The reason why the vampire stories arose among people who were not aware about the disease porphyria.

Introduction: Porphyria is a group of genetic disorders that arises due to the accumulation of chemicals called porphyrins in the body. In this disease, people lack enzymes of the metabolic pathway that forms the heme group (iron-containing group of hemoglobin).