Transcript Staphylococcus aureus

Staphylococcus
aureus
By: Matthew Johnson
How to get this bacteria!
 You can become infected by this bacteria
from skin to skin contact.
Symptoms
 Symptoms include
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Abscess
Boils
Scabs
Or furuncles
diseases
 Staph infections of the skin can turn intoimpetigo (a
crusting of the skin) or cellutis (inflammation of the
connective tissue under the skin, leading to swelling
and redness of the area). In rare cases, a serious
complication known as scalded skin syndrome (see
below) can develop. In breastfeeding women, Staph
can result in mastits (inflammation of the breast) or in
abscess of the breast. Staphylococcal breast
abscesses can release bacteria into the mother's milk.
How to treat it!
 Simple antibiotics will clear up the skin in
a few days.
Cell information
 The shape and make up of the Gram-positive cocci
helps to distinguish staphylococci from streptococci.
Streptococci are slightly oblong cells that usually grow
in chains because they divide in one plane only, similar
to a bacillus. Without a microscope, the catalase test is
important in distinguishing streptococci (catalasenegative) from staphylococci, which are vigorous
catalase-producers. The test is performed by adding
3% hydrogen peroxide to a colony on an agar plate or
slant. Catalase-positive cultures produce O2 and
bubble at once. The test should not be done on blood
agar because blood itself contains catalase.