We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byPierce Johnston
Modified over 6 years ago
Infectious Disease Aka Communicable Diseases Caused by micro-organismsParasite – lives in/on and feeds on host
Pathogens Pathogens Bacteria Virus Fungi Micro-organismsEnter the body Multiply Cause disease Bacteria Virus Fungi
Bacteria Single-cell micro-organisms Release toxins ExamplesFood poisoning –bacteria in food Tetanus – bacteria on objects/soil Staph
Virus Smallest parasite Enter cells and take over MultiplyCause colds/ flu HIV
Fungi Not all are harmful Some cause rashesMushroom/ yeast/ mold/ fungi Some cause rashes Ringworm & athlete’s foot
Spreading Infectious DiseasePhysical contact w/ infected person Contact w/ contaminated object Environmental sources Contact w/ contaminated animals
Contaminated Animals Animal bites *Eating bad food*Rabies/ Malaria/ Bird flu HIV/ AIDS
Contaminated Object Most infections die quickly when exposed to airSome can live on objects Lice
Contact w/ Contaminated PersonSkin to skin contact Sneeze/ cough Cold/ STI/ flu/ chicken pox
Environmental SourcesFood/ water/ soil Lead poisoning/ food poisoning Fungi/ mold/ pathogens in water Old food left out Contaminated animals
Stages of Disease Exposure Incubation Period Prodromal PeriodAcute Stage Recovery Stage Convalescence Immunity
Exposure & Incubation Exposure = contactIncubation = growth/ maturation No signs/ symptoms Pathogen/ parasite grows and multiplies
Prodromal Stage Slight signs & symptoms Ex: achy/ sore/ tiredContagious!
Acute Stage Severe symptoms Most contagious Most affected
Recovery Stage Signs/ symptoms begin to decreaseTemperature is reduced Feeling better
Covalescence Infection is gone Still not quite 100% Can relapseNeed rest, sleep, healthy diet, antibiotics
Immunity Feel 100% Body has antibodies Cannot catch same infection
Communicable Diseases and You. What is a Disease? A disease is a condition or illness that affects the proper and usual functioning of the body or mind.
What Are Communicable Diseases?
Infectious Diseases/ Immune System. NOTES Infectious Disease= caused by pathogens that enter, live in/on, and multiply within the human body. Pathogens=
Communicable/Infectious Diseases What are they and how are they spread?
Mr. Nugent 7 th grade. Ticket in the door Content knowledge Group work Ticket out the door.
The Immune System The Body’s Defense.
Infectious Disease Chapter 21.
Infectious Diseases 1. Organisms that cause diseases are called pathogens 2. Infectious disease a. a disease that is caused by the presence of a living.
Communicable (Infectious) Disease. Any agent that causes disease –Viruses –Fungi –Protozoans –Bacteria –Parasites Pathogens.
MODULE TWO. AIM To understand the causes and spread of infection and be able to apply the principles of infection prevention and control.
Causes of Communicable Diseases
Chapter 19-3: Diseases Caused by Bacteria and Viruses
Fighting Disease. Pathogen An organism that causes diseases All infectious diseases are caused by pathogens When you have an infectious disease a pathogens.
Click the mouse button or press the space bar to display information. The Immune System The immune system is the system that removes harmful organisms.
Infectious Disease Disease that can pass from one person to another Also known as communicable diseases.
Infectious Disease. Many illnesses, such as ear infections and food poisoning, are caused by living things too small to see with a microscope. Organisms.
Microbiology U11M6 Unit 11 Notes1. 2 How Disease is Spread The germ theory of disease – infectious diseases are caused by microorganisms The germ theory.
Introduction to Microbes
© 2021 SlidePlayer.com Inc. All rights reserved.