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Germs and Disease. Disease-any condition that interferes with the proper functioning of the body or mind. Communicable disease-disease that can be spread to a person from another person, animal, or object. Germs-organisms that are so small that they can be seen only through a microscope.
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Germs and Disease • Disease-any condition that interferes with the proper functioning of the body or mind. • Communicable disease-disease that can be spread to a person from another person, animal, or object. • Germs-organisms that are so small that they can be seen only through a microscope. • Pathogens-germs responsible for causing diseases. • Infections-condition that occurs when pathogens enter the body, multiply, and damage body cells.
Types of Pathogens • Viruses-the smallest and simplest disease-causing organisms, causing a wide range of health problems. • AIDS -Influenza -Rabies • Chicken Pox -Measles -Smallpox • Colds -Mononucleosis -Viral • Hepatitis -Mumps Pneumonia • Herpes -Polio
Types of Pathogens • Bacteria-tiny one-celled organisms that live nearly everywhere. Some are harmless and some are helpful, but can cause disease. • Bacterial pneumonia • Diphtheria • Food borne illness • Gonorrhea • Lyme disease • Pinkeye • Strep throat • Tuberculosis
Types of Pathogens • Fungi-primitive life-forms, such as molds or yeasts, that can’t make their own food. • Athlete’s foot • Ringworm
Types of Pathogens • Protozoa-one-celled organisms that have a more complex structure than bacteria. • Amebic dysentery • Malaria
How Pathogens Are Spread • Direct contact with others. • Skin to skin contact. • Colds are spread if you touch someone’s hand that has sneezed or coughed into their hand, then you touch your eyes or nose. • Indirect contact • Breathing in germs from a sneeze. • Sharing drinking glasses, food, eating utensils. • Touching a surface that is contaminated, doorknob, phone, ect.
How Pathogens Are Spread • Contact with animals or insects. • Being bit by a rabid animal. • Being bit by a deer tick may transmit Lyme disease. • Contaminated food and water. • Undercooked meat may result in E. coli bacteria, which could result in death.
How Pathogens Are Spread • Contact with someone else’s blood. • Through body contact or sharing of needles. • HIV • Hepatitis • Sexual contact. • Certain diseases are transmitted through sexual contact. • We will discuss this more in Lesson 4