Section 3: (continued)
2. Pathogen– any agent that causes disease.
- The skin is itchy and red. Fungal infections occur when fungus comes in contact with warm, moist skin.
4. Virus– a tiny disease-causing particle that consists of genetic material and a protein coat.
- Malaria: the symptoms are: fever, chills, headache, fa tigue, and nausea. Parasitic Infections: - Tapeworms, flukes, leeches, and fleas - Head lice cause itchiness and sores on the head.
1. Infectious disease– any disease that is caused by an agent that has invaded the body.
- Athlete’s foot, ring worm, and jock itch
- Amebic dysentery: symp toms are: nausea, diarrhea, and a fever.
Organizations, such as the Centers for Disease Control and Prevention and the National Institutes of Health, are helping to prevent diseases.
3. Bacteria- tiny, single-celled organisms, some of which can cause disease.
5. Fungus- an organism that absorbs and uses nutrients of living or dead organisms. 6. Antibiotics resistance– a condition in which bacteria can no longer be killed by a particular antibiotics. 7. Inflammation– a reaction to injury or infection that is characterized by pin, redness, and swelling.
Preventing Infectious Diseases
8. Lymphatic system– a network of vessels that carry a clear fluid called lymph through the body. 9. White blood cells– a blood cell whose primary job is to defend the body against disease. 10. Vaccines– a substance usually prepared from killed or weakened pathogens or from genetic material and that is introduced into a body to produce immunity. 11. Symptom– a change that a person notices in his or her body or mind and that is caused by disease of disorder. 12. Meningitis– an inflammation of the membranes covering the brain and spinal cord. 13. Salmonellosis– a bacterial infection of the digestive system, usually spread by eating contaminated food. 14. Hepatitis– an inflammation of the liver 15. Amebic dysentery– an inflammation of the intestine cased by an ameba
By: Jessica Dunlap 2/29/13 2nd Period
What Are Infectious Diseases?
Infectious disease is any disease that is caused by the agent that has invaded the body.
Diseases Everybody gets sick because there are so many pathogens in many place so you can’t avoid them.
To stay well:
- reduce stress
- eat healthy
- animal parasites
- drink water - get enough sleep
How they spread: - from food or water
- regular checkups
- from animals - from the environment Treatments: - Antibiotics, which are medicines used to kill or slow the growth of bacteria.
- follow the doctors orders and take all the medicine they prescribe you
Preventing antibiotic resistant bacteria: ics if you have a viral disease. - If you are given a prescription to treat a bacterial infection; follow the instructions and finish the medication.
When you are sick you should:
- drink plenty of fluid
doctor. - Do not ask your doctor for antibiot
When you get a vaccine your immune system makes white blood cells called memory cells. So if the pathogen comes your memory cells and antibodies can notice it and fight it off, before you’re infected.
- stay home and get some rest
- Prescribed medication from your
- from person to person
Your body uses your skin, chemicals, inflammatory response, and your immune system to fight diseases.
Protecting Yourself from
Agents that cause infectious diseases are: - bacteria
To prevent the spread: - get vaccinated - Cover mouth! - maintain good hygiene
- Strep throat: the symptoms for strep are: sore throat, fever, and yellow or white specks on tonsils. It is spread by contact with mucus from an infected person. - Sinus infections: the symptoms are: headache, pressure in your head, tenderness of the sinuses, and thick, green mucus. Bacteria is spread by contact with mucus from the nose or throat from a person with sinus infections.
- Cold: the symptoms are: sore throat, sneezing and runny nose, and mild cough. A cold is spread by contact with saliva or mucus of an infected person. - Flu: the symptoms for the flu are: headache, sore throat, fever, vomiting, fatigue, and coughing. It is spread the same way as a cold.