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Nature of Microorganisms

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by

Jessica Bergner

on 20 October 2016

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Transcript of Nature of Microorganisms

4.)
ORAL
*Enters mouth by water, dirty hands,
or contaminated food/objects.

5.)
INSECTS & PESTS
*Carry from contaminated areas to
water, food, & people

3.)
AIRBORNE
*Droplets cling to hair, uniforms,
medical equipment, & the floor.

THE NATURE OF MICROORGANISMS
http://www.environmentalgraffiti.com/featured/most-horrific-parasitic-worms/10497?image=0
5 Most Horrific Parasitic Worms
[With Gruesome Pictures]
We Are Constantly Surrounded by Microorganisms
http://www.handhygiene.net/microorganisms-on-hands/
Definition of MICROORGANISM
A tiny organism such as a virus or bacteria that can
only be seen under a microscope.
6 CHARACTERISTICS:
1.) PATHOGENIC
*causes
illness,
infection,
disease
2.) NONPATHOGENIC
*keeps balance
in body and
environment
(kills pathogens)
3.) AEROBIC
*require
oxygen to
survive
4.) ANAEROBIC
*able to grow
& function
withOUT oxygen
5.) SAPROPHYTES
*live on DEAD
matter
6.) PARASITES
*live on LIVING
matter or tissue
6 TYPES OF PATHOGENS:
1.) BACTERIA
*causes infections, strep throat, syphilis, staph-boils
STAPHYLOCOCCUS
and
STREPTOCOCCUS
are organisms
ALWAYS present in health care environments
2.) VIRUS
*Causes: common cold, respiratory infections, chicken pox, measles, mumps, fever blisters, AIDS
*smaller than bacteria
syphilis virus:
(staph)
(strep throat)
shingles / chicken pox
mumps
3.) PROTOZOA
*causes trichomoniasis ("trich" -STI), amebic dysentery, and malaria
*larger than viruses
"trich"
amebic dysentery
(infection of the intestines)
mosquito carrying malaria
athlete's foot
thrush (yeast infection in mucus in mouth)
4.) FUNGI
*very low form of plant life (molds & yeasts)
*causes athlete's foot, thrush, lung disease
5.) Rickettsiae
*parasites living on lice, fleas, ticks
*causes typhus, spotted fever
*rodent and insect control helps prevent
typhus
Spotted Fever
Rickettsiae infested ticks
Parasite on tick
6.) Parasitic Worms
*Can lie undetected for months to years
*Can be found in under-cooked meat
Malaria= A parasitic disease that involves high fevers, shaking chills, flu-like symptoms, anemia, bloody stools, headache, jaundice, muscle pain, nausea, sweating, coma
NONPATHOGENIC ORGANISMS
1.) "Good" organisms
2.) Butter, bread, ferment grain for alcohol
3.) DECOMPOSE food in body (feces)
4.) Control pathogenic organisms
BACTERIA GROWTH IS AFFECTED BY:
3 WAYS M.O. AFFECT THE BODY:
1.)
TOXINS:
*Causes
fatigue,
diarrhea,
vomiting
2.)
CELL INVASION:
* Causes chills, fever
3.)
ALLERGIC REACTION:
*Causes runny nose,
watery eyes, sneezing
INFECTIONS:
*GENERALIZED
-fever/fatigue
-increased pulse
-vomiting
-diarrhea
-poor diet
-inadequate rest
-stress
-poor health
-poor Immune System
5 WAYS M.O.'s SPREAD:
1.)
DIRECT CONTACT
*Person to Person

2.)
INDIRECT CONTACT
*Person to Object

caused by SPIROCHETES
(slender,
coil-shaped
organisms)
*Our fingernails house the highest level of pathogens on our hands.
*Killed with ANTIBIOTICS
http://www.diffen.com/difference/Bacteria_vs_Virus
*Ex: Salmonella
causes food poisoning
*LOCALIZED
-pain at spot
-redness
-swelling
-heat
-drainage
measles
1.) FOOD
2.) MOISTURE
3.) TEMPERATURE
*110-170 F: KILLS most bacteria.
*50-110 F: RAPID growth.
*32 F: SLOWS growth rate.
4.) OXYGEN
5.) LIGHT
(Aerobic & Anaerobic)
*Sunlight kills rapidly
*Darkness allows rapid reproduction
6.) DEAD & LIVING MATTER
(Saprophytes & Parasites)
(Physical or Sexual contact)
PREVENTION:
*Abstain from sex & touching open areas on body.

*Stay at least 3 feet from coughs/sneezes.

*Wear Personal Protective
Equipment! (PPE's)
(Food, air, soil, feces, contaminated clothing & equipment)
PREVENTION:
*Don't touch objects from infected people,
w/out protection.

*Hold contaminated items away from your uniform
CAUSES:
*Influenza
*Chickenpox

PREVENTION:
*Keep hair short/tied back

*Change clothes after working & before going out

*Stay home when sick

CAUSES:
-Food poisoning
-Influenza

PREVENTION:
*WASH HANDS:
-Before eating/touching food
-After the toilet (EVERY time)
-Before & after helping patients

*Dispose wound drainage promptly

*
CAUSES:

-Malaria tick
-Bubonic Plague
(lymph node infection)

PREVENTION:
*Keep insects out by maintaining
a clean & dry area.

*Report insects or pests immediately

(that cause illnesses)
*TREATMENT:
-Vaccines --> Prevent spread

-Antiviral meds-> Slow reproduction (CANNOT kill it completely)
NOTES #2:
HOW
MICROORGANISMS
SPREAD
*SUSCEPTIBLE Host:
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