What is an Infectious Disease Any disease that is caused by an agent that has invaded the body These are caused by Person to person contact Food and water Animals Something in the environment ID: 188391
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Infectious DiseasesSlide2
What is an Infectious Disease?
Any disease that is caused by an agent that has invaded the body.
These are caused by:
Person to person contact
Food and water
Animals
Something in the environmentSlide3
Person to Person Contact
Sneezing
Coughing
Sharing DrinksSlide4
Food and Water
Contaminated food
E
xample: Salmonella
Contaminated water
Drinking from streams and lakesSlide5
Animals
From animal bites we can get rabies, malaria,
lymes
disease, West Nile etc.Slide6
Environment
Pathogens that are present on most of the objects around you.
Door handles
PhonesSlide7
All infectious diseases are caused by a pathogen
.
A pathogen is any agent that causes disease.
Examples:
Bacteria
Viruses
Fungi
Protozoan
ParasitesSlide8
Bacteria
A tiny single cell organism that lives everywhere on earth
.
Examples:
tuberculosis, tetanus, sinus infection
Treatments:
Antibiotics (which prevent growth and division of bacteria.Slide9
Viruses
A disease causing particle made of genetic material and a protein coat.
Examples: Chicken pox, flu, measles, colds, AIDS
Treatment: Medication to treat the symptoms and prevent further production in human cells.Slide10
Bacteria versus Viruses
Bacterial infections: Can be treated with antibiotic
Examples: strep throat, sinus infections
Viruses: Can only treat the symptoms. Some viruses just have to run their course.
Examples: flu, cold, mumps, measles, hepatitisSlide11
Bacterial Diseases
Strep throat
Tuberculosis
Sinus infection
Malaria
TetanusSlide12
Viral Diseases
Common cold
Influenza (flu)
Cold sores
Warts
Mononucleosis
Chicken pox
AIDSSlide13
Fungus
Organisms that absorb and use nutrients of living or dead organisms.
Examples: athletes foot, ringworm, yeast infections
Treatment: over the counter meds or prescriptionSlide14
Protozoans
Single celled, microscopic organisms.
Leading cause of death in some parts of the world.
Example: malaria
Prevention: good hygiene and healthSlide15
Parasite
Get energy and nutrients from feeding on other things.
Examples: Head lice, tape worm,
lymes
diseaseSlide16
How does your body fight diseases?
Physical Barriers: skin, mucous membranes
Consider these to be like a defensive lineSlide17
Inflammatory Response: reaction to injury or infection that is characterized by pain, redness, swelling.
This would be the linebackersSlide18
Immune system: Contain certain types of blood cell and antibodies.
SafetySlide19
If the pathogen makes it past your immune system and score a touchdown, you are now officially sick!