WHAT ARE GERMS?
Germs are tiny living things that make you sick.
MOST GERMS ARE MICROSCOPIC
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That means that they are so small you must have
a microscope to see them
Some examples of germs are:
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Bacteria
Viruses
Fungi
Protozoa
Worms
BACTERIA
Bacteria are very simple, one-celled organisms
that live almost anywhere.
 Some bacteria are helpful like the kind that
makes yogurt. Other bacteria are harmful and
can make you sick.
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PICTURES OF BACTERIA AND THE
DISEASES THEY CAUSE:
Strep Throat
Food Poisoning
VIRUSES
Viruses are even smaller than bacteria, most are
harmful and make you sick.
 They must live inside another cell to survive. The
cell that the virus lives in is called a host cell.
 Most viruses can not live outside their host cell.
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PICTURES OF VIRUSES AND THE DISEASES
THEY CAUSE
Flu Virus
Cold Virus
FUNGI
Are multi-celled organisms that look like plants.
 They can not make their own food like a plant
can.
 They like to live in cool, moist and dark places.
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PICTURES OF FUNGI AND THE DISEASES
THEY CAUSE
Athlete’s Foot
Thrush-throat infection
PROTOZOA
Are single –celled organisms that live in water.
 They are very small and sometimes make you
sick.
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PICTURES OF PROTOZOA AND THE
DISEASES THEY CAUSE
Malaria-carried by a
mosquito and makes
people very sick
Amoeba-causes an upset
stomach
WORMS
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Some worms are parasitic which means it is
harmful to it’s host.
PICTURES OF PARASITIC WORMS
Pinworm
PICTURES OF ILLNESSES CAUSED BY GERMS
Small Pox
Strep Throat
Chicken Pox
Hookworm
Jaundice from Hepatitis
MORE PICTURES
Thrush
Measles
Mumps
WAYS TO PREVENT GETTING SICK
Wash your hands
 Eat a balanced meal
 Stay away from sick people
 Get plenty of rest
 Exercise
 Immunizations
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