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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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
Something in the environmentSlide3
Person to Person Contact
Food and Water
Drinking from streams and lakesSlide5
From animal bites we can get rabies, malaria,
disease, West Nile etc.Slide6
Pathogens that are present on most of the objects around you.
All infectious diseases are caused by a pathogen.
A pathogen is any agent that causes disease.
A tiny single cell organism that lives everywhere on earth
tuberculosis, tetanus, sinus infection
Antibiotics (which prevent growth and division of bacteria.Slide9
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
Organisms that absorb and use nutrients of living or dead organisms.
Examples: athletes foot, ringworm, yeast infections
Treatment: over the counter meds or prescriptionSlide14
Single celled, microscopic organisms.
Leading cause of death in some parts of the world.
Prevention: good hygiene and healthSlide15
Get energy and nutrients from feeding on other things.
Examples: Head lice, tape worm,
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.
If the pathogen makes it past your immune system and score a touchdown, you are now officially sick!
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