Infectious diseases 13.1

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Information about Infectious diseases 13.1

Published on September 21, 2015

Author: MissKuebler


1. Infectious DiseasesInfectious Diseases Chapter 13Chapter 13 ““Communicable”Communicable”

2. What is an infectious disease?What is an infectious disease? Any disease that is caused by an agentAny disease that is caused by an agent that has invaded the body ---can passthat has invaded the body ---can pass from one living thing to anotherfrom one living thing to another Example: influenza (flu)Example: influenza (flu) Not cancer or heart diseaseNot cancer or heart disease Also known as “communicable disease”Also known as “communicable disease”

3. What causes infectious diseases?What causes infectious diseases?  Caused by pathogens (any agent that causesCaused by pathogens (any agent that causes disease)disease)  BACTERIABACTERIA  single-celledsingle-celled  VIRUSVIRUS  FUNGIFUNGI  use nutrients of living or dead organismsuse nutrients of living or dead organisms  Athlete’s foot, jock itchAthlete’s foot, jock itch  PROTOZOANPROTOZOAN  malariamalaria  PARASITESPARASITES  Tapeworm, head lice, roundwormsTapeworm, head lice, roundworms

4. What is a bacteria?What is a bacteria? A single cellA single cell Common diseases caused by bacteria:Common diseases caused by bacteria: Strep throatStrep throat Food poisoningFood poisoning Urinary tract-infectionsUrinary tract-infections

5. What is a virus?What is a virus? A microscopic disease causing particleA microscopic disease causing particle consisting of genetic material and aconsisting of genetic material and a protein coatprotein coat Survive by invading a living cellSurvive by invading a living cell Common diseases caused by a virus:Common diseases caused by a virus:  COMMON COLDCOMMON COLD  FLUFLU  COLD SORECOLD SORE  MEASLESMEASLES

6. How are infectious diseases spread?How are infectious diseases spread? Person to person contactPerson to person contact Food and waterFood and water EnvironmentEnvironment Through the airThrough the air Animals (mosquitoes, ticks)Animals (mosquitoes, ticks) Contact with contaminated objectsContact with contaminated objects

7. How are infectious diseases treated?How are infectious diseases treated?  Bacterial diseasesBacterial diseases  AntibioticsAntibiotics  Viral diseasesViral diseases  No cure!No cure!  Medicines help relieve symptomsMedicines help relieve symptoms  Fungal diseasesFungal diseases  Anti-fungal medicineAnti-fungal medicine  Protozoan infectionsProtozoan infections  Prescription meds.Prescription meds.  Parasitic infectionsParasitic infections  DependsDepends  Head lice = medicated shampooHead lice = medicated shampoo

8. How do you prevent the spread ofHow do you prevent the spread of diseases?diseases? Get vaccinatedGet vaccinated Keep cleanKeep clean Wash your hands!Wash your hands! Don’t share personal itemsDon’t share personal items Cover your mouthCover your mouth Be on guard outdoorsBe on guard outdoors Wear proper clothingWear proper clothing

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