Communicable Diseases Ms. Kelly 8 th 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

Pathogens TYPEDISEASESTREATMENT Virus Bacteria Fungus Protozoa Cold, Mono, flu Strep, E.Coli, Pneumonia Athlete’s foot, ringworm Tapeworm Rest, Liquids, Good diet Antibiotics Topical cremes Surgery, Medications

Caused by DISEASE: Def: Examples ContagiousNot contagious Def:

Journal: 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