Transcript Notes on Infectious Disease backup

Infectious Disease
Definition: Diseases
transmitted(spread) by
pathogens(germs)
Infectious Disease
The
diseases are contagious -capable of
being transmitted by bodily contact with
an infected person or object
 The diseases are communicable-capable
of being transmitted by infection
Pathogens
 Three
types
 Virus:
invades body cells, then cells increase and break
open with virus moving on to other cells..smallest and
most numerous
 Bacteria: produces infection causing poisonous waste
 Fungus: attach to body cells causing damage and
robbing them of their nutrients
Types of infections

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How Pathogens are Spread
Infectious diseases spread through two types of contact
 Direct contact

Person to person – shaking hands, touching, etc…..
 Animal to person – bites or stings
 Mother to unborn child

Indirect contact – inanimate objects…doorknobs, faucet
handle, table tops
 Water
 Air
 Food-temperature(undercooked or unwashed foods)

Methods to prevent spread of germs
Wash your hands frequently
 Get vaccinated
 Use antibiotics sensibly
 Stay home if signs and symptoms of infection
 Be smart when preparing food
 Keep Hot zones in home clean – areas with concentration
of bacteria – bathrooms and kitchen
 Don’t share personal items- toothbrush,hair brush, razor

Flu Virus

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Body Defenses
 Skin
 Blood
 Antibodies
– white blood cells
Anti-biotics
Antibiotics are the first line of defense against
many infections. But overusing or misusing
antibiotics can cause more harm than good.
 Antibiotics are only effective against bacterial
infections, certain fungal infections and some
kinds of parasites. Most infections result from
either bacteria or viruses. Antibiotics can't
help you if a virus is responsible for your
illness.
