Download DISEASE CAUSING MICRO-ORGANISMS

DISEASE
CAUSING
MICRO-ORGANISMS
PATHOGENS
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Micro- organisms which cause diseases in other
organisms are known as pathogens
Bacteria, fungi and viruses are micro-organisms
which cause diseases in both animals and plants.
Diseases caused by pathogen are labeled
infectious as it can be easily spread.
DISEASES CAUSED BY BACTERIA
IN
HUMANS
Tuberculosis- a respiratory disease
 Bacterial meningitis- affects the brain
 Typhoid fever- affects the stomach and entire
body
 Urinary infections
 Diarrhea
 Cholera – affects the entire body
 Syphilis – affects the entire body
 Gonorrhea – affects the sexual organs
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DISEASES CAUSED BY FUNGI
Ring worm – affects the skin
 Fungal meningitis – affects the brain
 Thrush (oral candidasis) – rash in the mouth
 Athletes foot- affects the feet
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DISEASES CAUSED BY VIRUSES IN MAN
HIV/AIDS – affects the immune system of the
body
 Yellow fever – affects the entire body
 Common cold – affects the entire body
 Rabies – affect the brain
 Small pox – affects the skin and entire body
 Chicken pox – affects the skin and the entire
body
 Measles – affects the skin and the entire body
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HOW ARE PATHOGENIC DISEASES SPREAD
TRANSMISSION OF PATHOGENS
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Pathogens can be transmitted by
Droplet – sneezing, coughing (Tuberculosis )
Air and water – rain, contaminated air and water
(cholera)
Ingestion of contaminated food (diarrhea)
Direct contact – touching (ringworm), exchange
of blood or bodily fluid, sexual intercourse
(HIV/AIDS)
Indirect contact – being in the same room or
touching something that an infected person
touched previously. (common cold)
Vectors – organisms that carry the microorganisms, eg dogs (rabies)
PREVENTING THE SPREAD OF PATHOGENS
Wash hands after using the washroom and before
eating
 Ensure food is stored properly
 Proper hygiene
 Do not engage in any activity where bodily fluids
are exchanged without taking the necessary
precautions
 Cover mouths when sneezing or coughing
 Stay away from infected persons
 Sanitize areas of interest
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SUMMARY
Micro- organisms such as bacteria, fungi and
viruses that cause diseases are know as
pathogens
 There are many different types of diseases
caused by pathogens
 Pathogens can be spread easily and are known as
infectious diseases
 The transmission of pathogens can be prevented
with proper hygiene and other practices.
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