Download I am SICK

I’m SICK!!!!!
Diseases
Disease types
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Bacterial
Viral
parasitic
Hereditary
Cancer
Bacterial disease
• Caused by varieties of
bacteria which
produce poisonous
substances
• Can be killed with
antibiotics
• Strep throat, botulism
pneumonia
Viral disease
• Caused by minute living??
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Viruses
They work by injecting
their own DNA into your
cells DNA
Your cell then produces
viruses
Cannot be killed with
antibiotics, white blood
cells are the only hope
Rabies, ebola, colds
Parasitic
• Caused by a variety of
small organisms like
amoeba,
roundworms,fungi etc.
• Antibiotics may kill these
• Humans sometimes
accidental host
• Sleeping sickness,
dysentery
Hereditary disease
• Genetic disease
inherited from parents
• New forms of gene
therapy and genetic
engineering are
helping
• Down syndrome, md
Cancer
• May be inherited or
caused by a virus
• Cells that are dividing
uncontrollably and
crowding out normal cells
• If they break off and
spread throughout the
body, it is called
malignant.
• Chemotherapy kills all
dividing cells
Autoimmune diseases
• Immune system attacks own body-reasons
unknown
• Examples
• MS-myelin destroyed
• Myasthenia gravis-enzyme that breaks down
Ach is destroyed
• Lou Gehrig’s disease-motor nerves destroyed