What Are Communicable Diseases?

Slides:



Advertisements
Similar presentations
Chapter Review Choose the appropriate option.
Advertisements

Communicable Disease -get out paper!!!
Common Communicable Diseases
COMMUNICABLE DISEASES.  Disease causing bacteria, can produce TOXINS. Toxins-Substance that kills cells and interferes functions. Can be treated with.
Defense against Disease
Infectious Diseases. What Does Infectious Mean?  Infectious or Communicable Disease  Spread from one living thing to another or through the environment.
Ch. 24 Sec. 1 Communicable Diseases. What are Communicable Diseases?  Any disease that is spread from one _______________ thing to another  Any disease.
Communicable Diseases
Understanding Communicable Diseases (2:09) Click here to launch video Click here to download print activity.
What Are Communicable Diseases?
What Are Communicable Diseases?
Common Communicable Diseases
Communicable disease pathogens infection virus bacteria toxins vector.
Viruses Bacteria and Your Health Ch I. How Infectious Diseases Spread A. Infectious diseases are illnesses that pass from one person to another.
What Are Communicable Diseases? When was the last time you had a cold? How did you treat it?
HOW DO INFECTIOUS DISEASES SPREAD FROM PERSON TO PERSON? Viruses, Bacteria, and Your Health.
Psalams 139: Communicable Disease Is a disease that is spread from one living thing to another through the environment An organism that causes a.
Chapter 24 Warm Up What are the three methods of transmission of communicable diseases? Look in your book!
Chapter 13- Infectious Diseases
Coach Utt Health. Definition and Causes Communicable Disease- A disease that is spread from one living thing to another or through the environment Caused.
Communicable (Infectious) Disease. Any agent that causes disease –Viruses –Fungi –Protozoans –Bacteria –Parasites Pathogens.
COMMUNICABLE & NONCOMMUNICABLE DISEASES. COMMUNICABLE DISEASES O DISEASE THAT IS SPREAD FROM ONE LIVING ORGANISM TO ANOTHER OR THROUGH THE ENVIRONMENT.
Communicable Diseases
Understanding Communicable Diseases
Communicable Disease Mr. Surdy 8 East Health Objectives Describe the cause of infectious diseases. Identify the way in which diseases are spread. Identify.
Warm-up Pre Test!. Pre Test Something that can be spread from person to person or though the environment Though contaminated object, vectors, and contaminated.
Diseases.
Chapter 23 lesson 1 Understanding Communicable Diseases page and lesson 2 Common Communicable Diseases. Pages
Communicable Diseases Edmonds School Dist. 15 Health.
Unit 4- Diseases Chapters 24.1/24.2.  Communicable Disease: A disease that is spread from one living thing to another through the environment  How do.
Pathogens Mr. Mah Living Environment Lecture 11. Warm-Up Take 3 minutes to write down as many diseases/illnesses you can think of! Now, put a dot beside.
Do Now: Define Infectious Disease Pathogen Microorganism Tetanus
Communicable Diseases Chapter 13. Disease Any condition that interferes with the normal or proper functioning of the body or mind.
Communicable Diseases
Disease Communicable = spread from one living thing to another or through the environment. (colds, strep throat, mono) NON-communicable = not transmitted.
Viruses, Bacteria, and Your Health.  I. How infectious diseases spread  A. Infected person  1. touching, kissing, inhaling droplets of sneezes or coughs.
Communicable Diseases
Section 21.1 Understanding Infectious Diseases Slide 1 of 17 Objectives Identify the causes of infectious diseases. Describe four ways in which infectious.
Infectious Disease Biology pgs Objectives Identify the causes of disease. Explain how infectious diseases are transmitted Describe how antibiotics.
J # WHAT IS THE MOST IMPORTANT AND SIMPLE THING THAT YOU CAN DO FOR YOUR IMMUNITY?
COMMUNICABLE AND NON-COMMUNICABLE DISEASES AFTER THIS LESSON YOU WILL BE ABLE TO: Compare and contrast between non-communicable and communicable diseases.
 Today we are going to investigate diseases which interfere with the quality of people’s lives.  The two major categories are communicable and chronic.
Infectious Diseases Johanna Adderly Shena Wright Ayana Rhoden Disease Prevention Chapter 28 Lesson 3 9 th Grade Level.
COMMUNICABLE DISEASES Communicable Disease- a disease that is spread from one living thing to another through the environment. Pathogen – an organism that.
Lesson 3-2 Preventing Infectious Diseases. o Get out Student Journal, Lesson 2 Journal Entry o Write a few sentences about how being ill could affect.
Communicable Diseases Cover your mouth when you sneeze, or risk spreading the disease!
INTRO TO COMMUNICABLE DISEASES. Target: I will be able to list strategies for preventing communicable diseases Pg. 63 Communicable Diseases: An illness.
Communicable Diseases. What is a disease? Disease – any condition that interferes with the proper functioning of the body or mind. 2 different categories.
Communicable Diseases Chapter 24 Lesson: 1. Vocabulary Terms Communicable disease, pathogen, infection, viruses, bacteria, toxin, vector.
Viruses Require living cells to reproduce, inactive by themselves. Penetrates a host cell, takes control of the cell to manufacture more viruses. Usually.
Communicable and Non-communicable Diseases
Communicable Diseases Chapter 24. Communicable Diseases  A disease spread from one living thing to another or through the environment.  Causes of diseases?
Chapter 18 Communicable Diseases Lesson 1 Preventing the Spread of Disease Next >> Teacher’s notes are available in the notes section of this presentation.
December 12, 2016 Bell ringer: Write about the last time you had a cold. Include a list of the symptoms you experienced. Explain how you think you caught.
COMMUNICABLE & NONCOMMUNICABLE DISEASES
What is communicable? A disease that is spread from one living organism to another or through the environment.
Understanding Communicable Diseases
Lets recap… What did you like? What did you dislike?
Communicable Diseases
Communicable Diseases
What are the three methods of transmission of communicable diseases?
Disease Pathogens.
Communicable Diseases
COMMUNICABLE & NONCOMMUNICABLE DISEASES
COMMUNICABLE AND NON-COMMUNICABLE DISEASES AFTER THIS LESSON YOU WILL BE ABLE TO: Compare and contrast between non-communicable and communicable diseases.
Communicable Diseases
Communicable Diseases
Understanding Communicable Diseases (2:09)
Preventing the spread of disease
Communicable (infectious) Disease
Presentation transcript:

What Are Communicable Diseases? When was the last time you had a cold? How did you treat it?

Lesson Objectives In this lesson, you’ll learn to: Identify the types of pathogens that cause communicable diseases. Analyze the relationship between healthful behaviors and the ways that communicable diseases are spread. Develop and analyze strategies related to the prevention of communicable diseases.

What Are Communicable Diseases? Microorganisms and Communicable Diseases Although most microorganisms—living things too small to be seen without a microscope—are harmless, a few can cause communicable diseases. Knowing how communicable diseases spread can help you choose behaviors to reduce your risk of getting them.

Causes of Communicable Diseases Pathogens Common pathogens include certain viruses, bacteria, fungi, protozoans, and rickettsias. Pathogens cause diseases. If the body is not able to fight off an infection, a disease develops.

Causes of Communicable Diseases Diseases by Type of Pathogen

Causes of Communicable Diseases Viruses Viruses by themselves are inactive—they need living cells to reproduce. After a virus penetrates a cell (called the host cell), the virus takes control of the cell to manufacture more viruses. The new viruses burst from the cell, usually killing it, and take over other cells. Viruses usually run their course and eventually are killed by the immune system. Antibiotics do not work against viruses.

Causes of Communicable Diseases Bacteria Most bacteria are harmless, and many types are essential for life. When bacteria enter the body, they multiply through cell division. Some bacterial pathogens, such as the ones that cause tetanus, produce a toxin. Bacteria are usually destroyed by the immune system. Most bacterial diseases can be treated with antibiotics.

Causes of Communicable Diseases Other Types of Pathogens Fungi are plantlike organisms. Some types can cause diseases of the skin and diseases of the mucous membranes. Protozoans are single-celled organisms that are larger and more complex than bacteria. Rickettsias are pathogens that resemble bacteria. Often these organisms enter humans through the bites of insects.

How Communicable Diseases Are Transmitted Transmission of Communicable Diseases Transmission can occur through direct and indirect contact and through breathing contaminated air. If you know how they are spread, you can take precautions and avoid infection.

How Communicable Diseases Are Transmitted Direct Contact Direct contact includes touching, biting, kissing, and sexual contact. Sneezing and coughing can spray infectious droplets of saliva or mucus into a nearby person’s eyes, nose, or mouth. A pregnant female may also transmit an infection to her unborn child through the placenta.

How Communicable Diseases Are Transmitted Indirect Contact Contaminated objects: Inanimate objects can become contaminated with infectious discharges or secretions. Vectors: Common vectors include flies, mosquitoes, and ticks. Lyme disease and malaria are spread by vectors. Water and food: Careless handling and storage of food and water supplies that become contaminated with human or animal feces are major sources of contamination and illness.

How Communicable Diseases Are Transmitted Airborne Transmission Airborne transmission is different from direct contact because the pathogens don’t settle quickly on surfaces. You don’t have to be close to an infected person to inhale the pathogens. Diseases that are transmitted this way include chicken pox, tuberculosis, and influenza.

Strategies for Preventing Communicable Disease Washing Hands Handwashing is the single most effective strategy for preventing the spread of disease. Wash your hands before you prepare food, before you eat, and after you use the bathroom. Make it a habit to wash your hands after handling animals (especially reptiles) or animal wastes. When someone in your home is ill, keep hands clean to prevent the spread of pathogens.

Strategies for Preventing Communicable Disease Handling Food Properly Foodborne illness occurs in places where food is handled improperly. Always wash your hands before you handle food. Use paper towels, not dishcloths or sponges, to keep surfaces and equipment clean. Separate raw meat from other foods. Cook food to its proper temperature. Chill cold and leftover foods quickly to the proper temperature.

Strategies for Preventing Communicable Disease Other Prevention Strategies Avoid sharing eating utensils, makeup, combs and brushes, and other personal items. Avoid unnecessary contact with people who are ill. Cover your mouth when you cough or sneeze. Be sure you are vaccinated against particular diseases as recommended by your physician. Practice abstinence from sexual activity. Learn to manage stress.

Q. List five types of common pathogens, and identify one Quick Review Provide a short answer to the question given below. Q. List five types of common pathogens, and identify one disease each type of pathogen causes. Click Next to view the answer.

A. Five types of common pathogens and the diseases they Quick Review - Answer A. Five types of common pathogens and the diseases they cause: Viruses—Influenza Bacteria—Tuberculosis Fungi—Athlete’s foot Protozoans—Malaria Rickettsias—Typhus Click Next to attempt another question.

Q. Describe three ways in which pathogens spread and three Quick Review Provide a short answer to the question given below. Q. Describe three ways in which pathogens spread and three healthful behaviors to limit their spread. Click Next to view the answer.

A. Pathogens can spread through direct and indirect contact and Quick Review - Answer A. Pathogens can spread through direct and indirect contact and through breathing contaminated air. Healthful behaviors that you can adopt to limit their spread: Wash your hands. Cover your mouth when you cough or sneeze. Be sure you are vaccinated against particular diseases as recommended by your physician. Click Next to attempt another question.

Q. What are five ways you can reduce your risk of getting a Quick Review Provide a short answer to the question given below. Q. What are five ways you can reduce your risk of getting a communicable disease? Click Next to view the answer.

A. Five ways you can reduce your risk of getting a communicable Quick Review - Answer A. Five ways you can reduce your risk of getting a communicable disease: Eat a balanced diet. Participate in regular physical activity. Avoid the use of tobacco, alcohol, and other drugs. Avoid sharing eating utensils, makeup, combs and brushes, and other personal items. Avoid unnecessary contact with people who are ill. Click Next to attempt another question.

Quick Review Analyze and explain. The fungus that causes athlete’s foot lives in warm, moist places. What can you do to prevent getting this pathogen when you use gym or other common showers?

What Are Communicable Diseases? Microorganisms and Communicable Diseases Although most microorganisms—living things too small to be seen without a microscope—are harmless, a few can cause communicable diseases. Knowing how communicable diseases spread can help you choose behaviors to reduce your risk of getting them. A communicable disease is a disease that is spread from one living thing to another or through the environment.

Causes of Communicable Diseases Pathogens Common pathogens include certain viruses, bacteria, fungi, protozoans, and rickettsias. Pathogens cause diseases. If the body is not able to fight off an infection, a disease develops. A pathogen is an organism that causes disease.

Causes of Communicable Diseases Pathogens Common pathogens include certain viruses, bacteria, fungi, protozoans, and rickettsias. Pathogens cause diseases. If the body is not able to fight off an infection, a disease develops. An infection is a condition that occurs when pathogens enter the body, multiply, and damage body cells.

Causes of Communicable Diseases Pathogens Common pathogens include certain viruses, bacteria, fungi, protozoans, and rickettsias. Pathogens cause diseases. If the body is not able to fight off an infection, a disease develops. A virus is a piece of genetic material surrounded by a protein coat.

Causes of Communicable Diseases Pathogens Common pathogens include certain viruses, bacteria, fungi, protozoans, and rickettsias. Pathogens cause diseases. If the body is not able to fight off an infection, a disease develops. Bacteria are single-celled microorganisms.

Causes of Communicable Diseases Bacteria Most bacteria are harmless, and many types are essential for life. When bacteria enter the body, they multiply through cell division. Some bacterial pathogens, such as the ones that cause tetanus, produce a toxin. Bacteria are usually destroyed by the immune system. Most bacterial diseases can be treated with antibiotics. A substance that kills cells or interferes with their functions is called a toxin.

How Communicable Diseases Are Transmitted Indirect Contact Contaminated objects: Inanimate objects can become contaminated with infectious discharges or secretions. Vectors: Common vectors include flies, mosquitoes, and ticks. Lyme disease and malaria are spread by vectors. Water and food: Careless handling and storage of food and water supplies that become contaminated with human or animal feces are major sources of contamination and illness. An organism, usually an arthropod, such as a tick, that carries and transmits pathogens to humans or other animals is known as a vector.