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Communicable Diseases
Ms. Kelly
8th Grade Health
Journal:
• Define disease.
• What does it mean to be “in good health”?
Disease
• An abnormal condition or change (other
than injury), that interferes with normal
body functioning causing physical, mental, and/or
social problems
Types
• Non-Communicable: non-contagious
▫ Heredity/Genetics
▫ Environmental Factors
▫ Lifestyle Factors
• Communicable: Infectious (contagious); can
be passed from one source to another
▫ Pathogens
Pathogens
• AKA—GERMS!
• Harmful micro-organisms that cause disease
• Disease results ONLY when the growth of a
pathogen begins to injure the cells and tissues of
an infected person
DISEASE:
Def:
Examples
Examples
Contagious
Def:
Not
contagious
Def:
Caused by
Caused by
1.
2.
Pathogens
TYPE
1.
2.
3.
4.
DISEASES
Bacteria
Strep, E.Coli,
Pneumonia
Virus
Cold, Mono, flu
Fungus
Athlete’s foot,
ringworm
Protozoa
Tapeworm
TREATMENT
Antibiotics
Rest, Liquids,
Good diet
Topical cremes
Surgery,
Medications
With a partner, discuss:
• How do germs spread?
Ways Pathogens Spread
•
•
•
•
•
Direct contact
Droplets (airborne)
Contaminated surfaces
Contaminated food or water
Animals/insects
Properties of a Virus
• How easily it spreads
▫ Fast or slow?
• Durability
▫ How long can it live outside the body?
• How quickly it kills
▫ How fast does it attack cells?
• How much it mutates
▫ How frequently does it change?
So, worst possible type…
•
•
•
•
Spreads easily
Very durable
Kills slowly
Constantly mutates