Infectious Disease

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Infectious Disease
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Pathogens (Germs)

• A virus, microorganism or another agent that
  causes disease

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Types of Pathogens

• Virus invades body cells, virus reproduce and
  break open the cell with virus moving on to other
  cells to repeat the processsmallest and most
  numerous
• Bacteria produces infection causing poisonous
  waste
• Fungus attach to body cells causing damage and
  robbing them of their nutrients
• Fungus growth

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How the flu spreads!

• Flu Virus
• What happens

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Infectious diseases spread through two types of
contact

• Direct Contact
• Indirect Contact

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Direct Contact

• Person to person shaking hands, touching,
  etc..
• Animal to person bites or stings
• Mother to unborn child

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Indirect contact

• inanimate objectsdoorknobs, faucet handle, table
  tops
• Water
• Air
• Food-temperature (under-cooked or unwashed
  foods)

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Methods to prevent spread of germs

• Wash your hands frequently
• Get vaccinated (VIRUS)
• What is in a vaccine?
• Use antibiotics sensibly (Fungus-bacteria)
• Stay home if signs and symptoms of infection
• Be smart when preparing food

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Methods to prevent spread of germs

• v   Keep Hot zones in home clean areas with
  concentration of bacteria bathrooms and kitchen
• Dont share personal items- toothbrush,hair
  brush, razor

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Flu virus Image

• Swine flu virus

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Body Defenses

•  Blood
• Antibodies white blood cells
• Skin

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Anti-biotics

• Antibiotics are the first line of defense against
  many infections
• overusing or misusing antibiotics can cause more
  harm than good.

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Antibiotic concerns

• Strains of bacteria can mutate (change) and, over
  time, become resistant to a specific antibiotic.
• The chance of this increases if a person does not
  finish the course of antibiotics as some bacteria
  may be left to develop resistance.

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Antibiotics are only effective against

• bacterial infections
• certain fungal infections
• some kinds of parasites
• Most infections result from either bacteria or
  viruses.

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Use of Antibiotics

•    
• Antibiotics can't help you if a virus is
  responsible for your illness

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Symptoms of strep throat

• Strep caused by Virus or bacteria?
• Anatomy of a sore throat