Transcript Communicable Diseases and You

Communicable Diseases and You
What is a Disease?
• A disease is a condition or illness that
affects the proper and usual
functioning of the body or mind of
an individual.
Non-Communicable Disease
• A Non-communicable disease I NOT spread by
contact with others and may be caused by
living conditions, genetics, or environmental
hazards.
What is a Communicable Disease?
• A communicable disease is one that can be
passed from one individual to another.
• A communicable disease is caused by an
organism so small it can only be seen by using
a microscope.
GERMS
• Disease causing organisms are usually called
GERMS.
• When germs enter the body, they grow,
reproduce and frequently produce waste
products that are poisons in the human body.
• The result is an infection.
Types of GERMS
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Bacteria
Viruses
Rickettsia
Fungi
Protozoa
BACTERIA
• Any tiny single cell organisms that grow and
thrive almost everywhere.
• There are 3 types of bacteria: Bacteria
• Cocci
• Bacilli
• Spirilla
VIRUSES
• Are the smallest and simplest forms of life.
• Many viruses are harmful to humans.
• VIRUSES
RICKETTSIA
• Are small bacteria that are spread by the bites
of insects such as mites and ticks.
FUNGI
• Are simple life forms that are unable to make
their own food.
PROTOZOA
• Simple, animal-like organisms.
BACTERIA
• Live everywhere: on you, in you, and around
you.
• Most bacteria do not harm you.
• Some bacteria are very helpful.
• Bacteria become harmful when they go places
they do not belong. E coli
BACTERIA need…
• Food Supply
• Warmth
• Moisture
• Your body provides all three of these needs
and a perfect home for bacteria!
BCATERIA COCCI
• Can cause diseases such as abscesses,
gonorrhea (clap), bacterial pneumonia, strep
throat and scarlet fever.
BACTERIA BACILLI
• Causes botulism (food poisoning), diphtheria,
tetanus, tuberculosis, whooping cough, and
leprosy.
VIRUSES
• Are very specialized
• Some attack only certain body cells.
• Rabies virus attacks only the nervous system.
• Viruses cause AIDS, chicken pox, measles,
colds, flu, mumps, polio, viral pneumonia, and
mononucleosis…
RICKETTSIA
• Are found in lice, mites, and ticks.
• They enter the body through the bite of an
insect that is infected.
• Rocky Mountain Spotted Fever, and Lyme
Disease are caused by rickettsia.
• Lyme Disease
FUNGI
• Attack the body and often live in the hair, nails
and skin
• Athlete’s Foot and ringworm are two diseases
caused by fungi.
• Athlete’s foot affects the feet, while ringworm
appears on other parts of the body.
• Ringworm
PROTOZOA
• Many are harmless but some can cause
disease.
• Malaria is caused by protozoa that live in
certain kinds of mosquitoes.
• If an infected mosquito bites a person, the
person will become infected.