Download BACTERIA

BACTERIA
http://www.factslides.com/s-Bacteria
Bacteria: the good, the bad,
and the ugly
Some bacteria are
pathogens (disease
causing)
Breaking down body
tissues
Others are
beneficial
Aiding digestion;
fixing nitrogen
Diseases Caused by Bacteria
Cholera
Typhoid Fever
Botulism
Strep Throat
Tuberculosis
Bubonic plague
Dental Cavities
Anthrax
Lyme Disease
E. Coli
Diphtheria
Salmonella
Suspect: Mycobacterium
tuberculosis
Disease:
Tuberculosis (TB) is a
potentially serious
infectious disease that
mainly affects your
lungs.
Symptoms may include:
Chronic coughing
Coughing up blood
Difficulty breathing
Fever, chills, night
sweats, fatigues, weight
loss
Suspect: Clostridium tetani
Disease: Tetanus
Also known as lockjaw,
is an infection
characterized by muscle
spasms
Symptoms: muscle
spasms, muscle rigidity,
facial muscle spasms, or
stiff muscles
Suspect: Corynebacterium
diphtheriae
Disease: Diphtheria
Upper respiratory tract
illness
Symptoms: difficulty
swallowing, soreness,
rashes or ulcers in skin,
impaired voice,
shortness of breath,
fever, chills
Suspect: Vibrio cholerae
Disease: Cholera
A bacterial disease
causing severe diarrhea
and dehydration, usually
spread in water
Symptoms: severe
diarrhea, severe vomiting,
dehydration, pain in
rectum or abdomen
How do we prevent & treat
bacterial infections?
1. Proper food handling (can help PREVENT an
infection from food-borne illness)
• Keep food in cool, dry location
• Cook properly
• Wash hands thoroughly when handling raw
meat
How do we prevent & treat
bacterial infections?
2. Vaccines can help PREVENT an infection
• Tuberculosis
• Diphtheria
• Tetanus
• Pertussis
How do we prevent & treat
bacterial infections?
3. Your body has an
immune system
response just like
during a viral
infection
How do we prevent & treat
bacterial infections?
4. Antibiotics can help TREAT an existing
infection
• Penicillin
• Azithromycin
• Ciprofloxacin
• Amoxicillin
How do antibiotics work?
•
•
Antibiotics only work on bacteria (NOT
viruses)
They may kill or inhibit the growth of
bacteria
If we made drugs
(antibiotics) to kill bacteria,
why are there still so many
disease causing bacteria?
Antibiotic Resistance
Video: https://www.youtube.com/watch?v=znnp-Ivj2ek
Bacteria are continually adapting to develop
ways of not being killed by antibiotics
through mutation.
Antibiotic resistance arises in our bodies’ bacteria, or in
animals, due to the overuse and misuse of antibiotics.
MRSA
Methicillin Resistance Staphylococcus aureus
Methicillin-resistant Staphylococcus aureus is a
bacterium responsible for several difficult-to-treat
infections in humans.
Source: Mayo clinic
MRSA
Some bacteria are helpful!
Nitrogen Fixation
•
Bacteria that live in the soil help “fix”
nitrogen- making it easier to absorb by
plants.
•
These bacteria change N2 (non-usable
form) into NH4+ (ammonium) which is
usable to plants
What is Nitrogen Fixation?
https://www.youtube.com/watch?v=4NKGS4bj7cc
Bacteria
• Komodo Dragon – Bacteria on it’s tongue
http://video.nationalgeographic.com/video/weirdest-komodo-dragon?source=searchvideo
• Flashlight fish lit up because of bacteria
https://www.youtube.com/watch?v=Jk_EmI4te20
• Monsters Inside Me – Flesh Eating Bacteria
https://www.youtube.com/watch?v=ypmsjqytMpA
• Monsters Inside Me – Lung Infection Bacteria
https://www.youtube.com/watch?v=OsxZT-55K4k
• Monsters Inside Me – Chromobacterium
https://www.youtube.com/watch?v=2Lr__MpVhNA
Let’s put it all together!
Viruses, Protists, Bacteria