Simple onecelled organisms Multiply rapidly Killed by antibiotics Some have become antibiotic resistant Classified by shape amp arrangement Shapes of Bacteria Bacteria Classes Cocci round or spherical ID: 928944
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Slide1
Bacteria
DHO Chapter 14
Slide2Bacteria facts
Simple, one-celled organisms
Multiply rapidly
Killed by antibiotics
Some have become antibiotic resistant
Classified by shape & arrangement
Slide3Shapes of Bacteria
Slide4Bacteria Classes
Cocci
=round or spherical
diplococci=cocci in pairs
streptococci=cocci in chains
staphylococci=cocci in clusters
Slide5Bacteria Classes
Bacilli
=rod-shaped
can occur singly, in pairs, or in chains
can have flagella (thread-like projections similar to tails & allow for movement)
can form spores (thick-walled capsules) which makes them hard to kill
Slide6Bacteria Classes
Spirilla
=spiral or corkscrew
Slide7Types of Bacterial Infections
Boils
Botulism
Cholera
Diptheria
Gonorrhea
Meningitis
MRSA
Pertussis
Pneumonia
Rheumatic Fever
Strep Throat
Syphilis
Tetanus
Toxic Shock
Tuberculosis
Typhoid
UTI
Wound Infections
Slide8Boils-caused by ingrown hair or foreign object;
Slide9Treatment(tx
):
warm compress or drain
Slide10Botulism-
caused by the most potent/lethal
neruotoxoin
produced by Clostridium
botulinum
;
~
commonly
found in soil all over the
world
~anaerobic
~gram
-positive rod-shaped bacteria that form spores that allow the bacteria to survive in a dormant state until exposed to conditions that can support growth
Slide11Honey can contain botulism spores and should not be fed to
babies less than 1 year of age.
Slide12Slide13Cholera
Slide14Slide15Slide16Diphtheria-
spread by infected saliva droplets
DTaP
Vaccine-diphtheria, tetanus, pertussis
Slide17Slide18Slide19Gonorrhea-
curable sexually transmitted disease
Slide20Slide21Meningitis~
Inflammation
of the membranes (meninges) s
urrounding
your brain
&
spinal
cord
~swelling
from meningitis
~
symptoms
such as headache,
Slide22Signs/Symptoms at least 2yrs old include
:
~Mimic
the
flu-
fever and a stiff neck.
~
Most
cases of meningitis in the U.S. are caused by a viral infection, but bacterial and fungal infections are other
causes
Sudden
high fever
Stiff
neck
Severe
headache
Headache with nausea or vomiting Confusion or difficulty concentrating Seizures Sleepiness or difficulty waking Sensitivity to light No appetite or thirst Skin rash (sometimes, such as in meningococcal meningitis)
Slide23Common bacteria or viruses that can cause meningitis can spread through coughing, sneezing, kissing, or sharing eating utensils, a toothbrush or a cigarette.
Slide24Methicillin-resistant staphylococcus
Slide25Pertussis
Slide26Pneumonia
Slide27Rheumatic
fever-
complications after Strep throat
by
bacteria
-group
A
Symptoms
-- fever, muscle aches, swollen and painful joints,
a
red, lattice-like
rash -- typically begin two to four weeks after a bout of strep.
Slide28Slide29Strep throat
Slide30Syphilis
Slide31Tetanus-
bacterial disease that
affects nervous system:
leading to painful muscle contractions, particularly of your jaw
&
neck
muscles
~Can
interfere with your ability to breathe and can threaten your
life
Tetanus is commonly
known
as "lockjaw."
tetanus, diphtheria and pertussis (
Tdap
) vaccine
Slide32Spores of the bacteria that cause tetanus, Clostridium
tetani
, are found in soil, dust and animal feces. When they enter a deep flesh wound, spores grow into bacteria that can produce a powerful toxin,
tetanospasmin
, which impairs the nerves that control your muscles (motor neurons). The toxin can cause muscle stiffness and spasms — the major signs of tetanus.
Slide33Toxic Shock
Slide34Tuberculosis
-
bacteria
that cause
tuberculosis
are spread
from
one person to
another
through
tiny
droplets released
into the air
Slide35Typhoid-
Bacterium
that causes it lives in the bloodstream and intestines and is only spread by humans, via water or
feces
Urinary tract infection
Slide38Wound infections