Evolution of Infectious Disease infectious disease can be induced by bacteria, viruses, fungi, and parasites. Several examples of infectious diseases are as follows: tuberculosis, chickenpox, mumps, meningitis, measles, and malaria. Infectious diseases can be obtained through many routes of transmission such as inhalation, open wounds, sores, ingestion, sexual intercourse, and insect bites. Author, Paul Ewald used his book to expound upon infectious diseases in humans and animals, explain various routes of transmission as well as epidemiology as a whole. Epidemiology is defined as the study of the onset, distribution, and control of diseases. Evolutionary epidemiology focuses on the distribution of infectious diseases whereas Darwinian
Infectious causes of cancer largely caused by infectious hepatitis B virus (HBV) plus hepatitis C virus (HBC) and stomach cancer is largely caused by "Helicobacter pylori" bacteria. World-wide, the estimated number of people chronically infected with HBV and/or HCV is ~325 million. Over half of the world's population is colonized with "H. pylori" and it is estimated that "H. pylori"-positive patients have a 1-2% risk of developing distal gastric cancer. DNA damage and genomic instability appear to be the basic causes of sporadic (non-familial) cancer. While infections have many effects, infectious organisms that increase the risk of cancer are frequently a source of DNA