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Chapter 13: Preventing Infectious Diseases Section 1: What are Infectious Diseases?

Jazzl yn Thompson Wellness Hubbard 3rd Period

Volume 1, Issue 1

An infectious disease is any disease that is caused by an agent, or pathogen, that has invaded the body. The five different agents that can cause infectious diseases are bacteria, viruses, fungi, protists, and parasites. The five different ways that infectious diseases can be spread is by: 1. Person to person: sneeze, cough, kiss, ect.

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Special points of interest: What are infectious diseases?’ Protecting yourself from infectious diseases Common infectious diseases

2. Food and Water: from infected people, animals, or the food itself 3. Environment: pathogens on things around you

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4. Animals: pathogens live on or in animals' bodies

Chapter 13: Section 1

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Chapter 13: Section 2

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Chapter 13: Section 2

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Chapter 13: Section 3

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Chapter 13: Section 3

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Vocabulary for Chapter 13

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There are two ways to treat for infectious diseases: using antibiotics and preventing to protect yourself. The two ways you can help prevent the development of antibiotic resistant bacteria is to not ask your doctor for antibiotics if you have a viral disease, and if you get a prescription from your doctor, make sure you follow the prescription and finish it.


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Chapter 13: Preventing Infectious Diseases

Section 2: Protecting Yourself from Infectious Diseases Your body has many ways to fight off infectious diseases. The first line of defense is your physical barriers, which form barriers. Such as: Skin: uses chemicals (sweat and oil) to trap pathogens, repairs itself Mucous Membranes: make slimy material called Mucus, which trap pathogens Chemicals: sweat and stomach acid are acidic which kills bacteria, tears contain protein to kill bacteria, to If those pathogens cross your physical barriers, the second line of defense is your inflammatory response, which causes inflammation. The area on your body that becomes infected gets hot, like when you have a fever, red, and inflamed. It gets like that because your blood vessels try and bring more blood to that area. Sometimes, pus comes out because it is dead cells and bacteria. Sometimes, your physical barriers don’t always protect you against all the pathogens, so your body’s

third line of defense is your Immune System. It contains infectionfighting cells called anitbodies. They move through your lymphatic system. It sometimes takes bacteria or viruses to your lymph nodes. They have white blood cells that scan the lymph for pathogens. When they detect pathogens in the lymph, they warn the other white blood cells, and start battling. That’s why your lymph nodes swell while your sick. Here are several things you can do to stay healthy: 1. Protect yourself 2. Eat a healthy, balanced diet 3. Drink water 4. Reduce your stress level 5. Exercise regularly


Volume 1, Issue 1

You can develop immunity to a disease by getting a vaccine. When it is injected, your immune system responds to the vaccine’s material by producing white blood cells, which are memory cells. So, if your immune system recognizes the pathogen that enters it again, the memory cells will fight it before it can cause disease.

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There are many ways you can do to prevent infectious disease: Get vaccinated Keep clean Don’t share personal items

When you are sick, the things you should do is: Stay home (so you won’t pass it to others and to get test) Drink plenty of fluids Follow all directions the doctor gives you and take all medicine prescribed

Section 3: Common Infectious Diseases Why diseases affect everybody is because there is so many different pathogens in so many places. It’s just impossible to avoid them. The best defense is to stay away from behaviors that would increase our chances. Here are two major bacterial diseases: Strep Throat Symptoms: sore throat, fever, yellow or white specks on tonsils

Ways that are spread: spread by contact with mucus from an infected person Sinus Infection Symptoms: headache, tenderness of the sinuses, thick and greenish mucus, feeling of pressure in your head Ways that are spread: spread by contact with mucus from the nose or throat of an infected person


Here are two major Viral Diseases: Flu Symptoms: headache, sore muscles, sore throat, fever, vomiting. fatigue, and cough Ways that are spread: spread by contact with saliva or mucus of an infected person and by personal contact Cold Symptoms: scratchy and sore throat, sneezing, runny nose, and mild cough Ways to be spread: spread by contact with saliva or mucus of an infected person

Vocabulary for Chapter 13

There are other types of common infections caused by fungi, protists, and parasites. Here are some examples of each: Fungal Infection: Athlete’s foot, ringworm, and jock itch Symptoms: itchy, red skin and lesions Protistan Infection: amebic dysentery, malaria, and African sleeping sickness Symptoms: nausea, fatigue, headache, diarrhea, fever, and chills Parasitic Infection: hookworms, flukes, pinworms, tapeworms, head lice, leeches, ticks, and fleas Symptoms: itchiness and sores Two organizations in my community to help treat and prevent infectious diseases are the Centers for Disease Control (CDC) and the National Institutes of Health (NIH)

Infectious Disease- is any disease that is caused by an agent, or pathogen, that has invaded the body Pathogen– any agent that causes disease Bacteria– are tiny, single-celled organisms, some can cause disease Viruses– tiny disease-causing particle made up of genetic material (DNA) and protein coat called a capsid Fungi– organisms that absorb and use nutrients of living or dead things Antibiotic Resistance– condition in which bacteria can no longer be killed by a certain antibiotic Inflammation– reaction to injury or infection that is painfull, red, and swells Lymphatic System– network of vessels that carry a clear fluid called lymph through the body White Blood Cells-primary job is to defend the body against disease Vaccines-used for immunity, substances from killed or weakened pathogens Symptoms– changes that you notice in body or mind caused by disease Meningitis/Hepatitis– bacteria causes it/ serious viral infection Amebic Dysentery– inflammation in intestine caused by amoeba

Wellness Project  

Newsletter format for chapter 13 out of the textbook.

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