Pathogens and Disease Introduction Day 1 PDF
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This document is an introduction to pathogens and diseases. It covers key terms such as etiology, epidemiology, parasite, vector, and pathogenesis. It also details different types of pathogens, including viruses, bacteria, fungi, and more, and connects them to various diseases.
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NASTY THINGS THAT WANT TO HARM US Introduction to Pathogens IS THE FIVE-SECOND RULE REAL? https://www.youtube.com/watch?v=Dn7oKBEy2gU (2:45) INTRODUCTORY TERMS KEY TERMS Aetiology (Etiology) This is the study of w...
NASTY THINGS THAT WANT TO HARM US Introduction to Pathogens IS THE FIVE-SECOND RULE REAL? https://www.youtube.com/watch?v=Dn7oKBEy2gU (2:45) INTRODUCTORY TERMS KEY TERMS Aetiology (Etiology) This is the study of what causes a disease It is basically how scientists/doctors pinpoint what created the disease in order to better understand how to cure it to prevent it from spreading KEY TERMS Epidemiology It is the study of the factors affecting the health of populations It serves as the basis for public health decisions and identifies risk factors for disease KEY TERMS Parasite Any organism that has a negative effect on another organism with which it has close contact. All pathogens are parasites. KEY TERMS Vector The item that transfers the pathogen to its host. Vectors are “vehicles” that transport pathogens from one host to another. Examples: water, food, blood, ticks, mosquitoes… KEY TERMS Pathogenesis The step-by-step development of a disease from infection by a pathogen to termination of either the germ or the host. WHAT IS A PATHOGEN? PATHOGENS A pathogen is an infections agent (“germ”) that causes disease or illness in a host. “Path-” means suffering, “-ogen” means birth to The host is the organism in which a parasite or pathogen does damage. TYPES OF PATHOGENS Viruses Bacteria Fungi Animal Protists Prions Parasite s MICRO-ORGANISM VERSUS PATHOGEN Disease causing micro-organisms are considered pathogens. However not all micro-organisms are pathogens. Harmless viruses, bacteria, protozoa, fungi, parasites are known only as micro-organisms. All About Pathogens: Bacteria, Viruses, and More (webmd.com) WHAT MICROORGANISM CAUSES THE DISEASE/ILLNESS? Cholera Polio Mononucleosis Encephalitis HIV Meningitis Influenza Tuberculosis Strep throat Listeriosis Bubonic plague Measles E.coli Cervical cancer Norovirus Malaria Varicella Rotavirus SARS Smallpox Scarlatina Hepatitis Chlamydia Amebiases Roseola Thrush Campylobacter Ebola Chickenpox Cryptosporidiosis
