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Chapter 18 Communicable Diseases Lesson 3 Common Communicable Diseases Click for: >> Main Menu >> Chapter 18 Assessment Teacher’s notes are available in the notes section of this presentation. Next >> contagious period The length of time that a particular disease can be spread from person to person A viral disease characterized by a severe mononucleosis sore throat and swelling of the lymph glands in the neck and around the throat area hepatitis A viral disease of the liver characterized by yellowing of the skin and the whites of the eyes tuberculosis A bacterial disease that usually affects the lungs pneumonia A serious inflammation of the lungs strep throat A sore throat caused by streptococcal bacteria In this lesson, you will learn to explain what causes colds and how they can be treated. identify some common communicable diseases. describe the symptoms of some common communicable diseases. Predicting Major Headings in this Lesson Look at the main headings, figures, and captions in the lesson. Predict what kind of information you think you might learn. • Colds • The Flu • Other Common Communicable Diseases Colds When You Have A Cold Get plenty of rest and drink lots of fluids. Some over-the-counter (OTC) medicines can help relieve cold symptoms. Stay home for at least 24 hours after cold symptoms first appear. The Flu Flu Symptoms Fever and chills Headache Muscle aches Respiratory problems The Flu The flu is spread by one of three main types of influenza viruses, each with several different strains. Scientists try to anticipate which strains will spread fastest and create enough flu vaccines for the following year. Other Communicable Diseases Often, the contagious period of a communicable disease includes a length of time before the infected person starts to show symptoms. contagious period The length of time that a particular disease can be spread from person to person Mononucleosis Mononucleosis is spread through contact with the saliva of an infected person. mononucleosis A viral disease characterized by a severe sore throat and swelling of the lymph gland Mono is also spread through sharing contaminated eating utensils and drinking glasses. Hepatitis There are three types of hepatitis. hepatitis A viral disease of the liver characterized by yellowing of the skin and the whites of the eyes Hepatitis Hepatitis A • Most commonly spread through food or water that has been contaminated with human waste. • Vaccines can protect people from this type. Hepatitis B • Most commonly spread through contact with contaminated blood or other body fluids. • Vaccines can protect people from this type. Hepatitis C • Most commonly spread through contact with contaminated blood or other body fluids. • Medications can help treat people with this type. Tuberculosis Because tuberculosis spreads easily through the air, people are regularly tested for the disease. tuberculosis A bacterial disease that usually affects the lungs Sometimes people who test positive for TB show no symptoms. Pneumonia Pneumonia can be caused by a virus or bacteria. pneumonia A serious inflammation of the lungs Pneumonia can be spread through direct or indirect contact. Strep Throat Left untreated, strep throat can lead to serious complications, such as heart or kidney damage. strep throat A sore throat caused by streptococcal bacteria Strep throat is spread through direct or indirect contact and can be easily treated with antibiotics. Strep Throat Symptoms of strep throat include a red and painful throat, fever, and swollen lymph nodes in the neck. Lesson 3 Review What I Learned Vocabulary Define mononucleosis. Lesson 3 Review What I Learned Give Examples What are two examples of how someone might become infected with hepatitis A? Lesson 3 Review What I Learned List Name two symptoms of strep throat. Lesson 3 Review Thinking Critically Analyze Why are hospital patients often at risk for developing pneumonia? Lesson 3 Review Thinking Critically Evaluate If someone has symptoms such as a fever and fatigue, how will that person know when to seek help from a health care professional? End of Chapter 18 Communicable Diseases Lesson 3 Common Communicable Diseases Click for: >> Main Menu >> Chapter 18 Assessment