A microorganism is any living thing such as a virus or bacteria, that can only be seen using a microscope.
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Pathogen
A Microorganism that causes Disease.
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Viruses
Seen by very powerful Microscopes. They cannot Reproduce on their own, but take over other microorganisms and force them to make more viruses.
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Bacteria
Bigger than Viruses. They can reproduce on their own (Binary Fission)
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Fungus
Between 10 and 100 times bigger than bacterial cells. They also reproduce on their own by usually using Asexual Reproduction.
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Protozoa
Single Celled organism, Larger than Bacteria and viruses.
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Disease That is easily passed on is...
an Infection. Can enter the body, through openings such as cuts or the mouth.
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Transmission of Pathogens
Direct Contact...Contact with an infected persons belongings... Droplets in the Air(Cough or Sneeze)... Contaminated Food... Contaminated Water... Carried by Animals.
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Controlling Disease
Washing Hands, Clean water by Filtering and Purifying/Chlorinating
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Direct Contact
e.g. Chickenpox, STD (Sexually Transmitted Disease) (Virus)
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Contact with Infected persons Belongings
e.g. Athlete's Foot (Fungus)
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Air Droplets
e.g. Influenza, Tuberculosis, Measles, Chickenpox (Viruses)
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