HEALTH

  INTRODUCTION We're going to take a look at infectious diseases and what they are. Some terms used to describe them and take a look at a few different types of infectious diseases. First of all what is an infectious disease? An infectious disease is a disease caused by an infectious agent like viruses bacteria parasites or fungi infectious diseases are a global problem and in the past used to be the leading cause of death there were large epidemics of smallpox TB syphilis cholera and plague that caused millions of deaths around the world 1918. INFECTIOUS DISEASES The influenza pandemic alone was responsible for the death of around 40 million people globally thankfully advances in nutrition antibiotics immunization food. Safety housing and sanitation have led to a massive reduction in infectious diseases however even now there a the problem in 2012 infectious diseases was responsible for three of the top ten causes of death in the world. These three were lower respiratory tract inf