Streptococcus and Staphylococcus bacteria are widely found in humans and animals. They are non-motile, do not undergo spore formation, and are even facultative anaerobes.
But there are many differences between Streptococcus vs Staphylococcus bacteria as seen in the table below.
Streptococcus vs Staphylococcus
|Streptococcus is a Gram-positive bacteria, forming a short-chain.
|Staphylococcus is also a gram-positive bacteria, but it forms
|The Streptococcus cells are arranged by single-chain containing spherical cells.
|The Staphylococcus cells are arranged in grapes, like clusters,
also present in tetrads, short chains.
|Site of infection in humans and animals
|The habitat of Streptococcus
in animals is the respiratory
tract and mouth.
|The habitat of Staphylococcus
in animals is the skin and other outer
|The multiplication of the streptococcus by binary fission is in a linear way along a single axis only.
|While the multiplication of the
Staphylococcus by binary fission occurs in multiple ways due to various axes.
|Approximately 50 different types of Streptococcal species
|Nearly 40 different species of
Staphylococcal species are identified.
|Most of the Streptococcal
species are pathogenic.
|Some of the Staphylococci
species are pathogenic.
|Streptococcus bacteria require enriched media to
|The Staphylococcus does not need enriched media to grow.
|Most of the streptococcus
species are facultative
anaerobes, but some of them are obligate anaerobes.
|Most of the Staphylococcus
species are aerobes, but some of them are facultative anaerobes.
|The Streptococcus organisms are fastidious i.e. require special nutrients or conditions.
|The Staphylococcus organisms are not fastidious.
organisms do not produce any pigments while growing in the
|Staphylococcus organisms do produce the golden-yellow colored pigment while growing in the media.
|Infectious Discharge type
|Serous discharge is produced by the Streptococcus organism to cause an infection, because of enzyme Streptodornase
|Purulent discharge is the type produced by the Staphylococcus
organisms to cause an infection
|Either Alpha, Beta, or Gamma
1) Alpha Hemolysis: The colony appears as a dark and greenish color.
2) Beta Hemolysis: The colony appears as lightened yellow color.
3) Gamma Hemolysis:
The colony undergoes
|No hemolysis or sometimes Beta hemolysis occurs.
|The genome sizes of the Streptococcus are 1.8 to 2.3 Mb, and encoded1, 700 to 2,300 proteins.
|The Genome sizes of the Staphylococcus are 1 to 2.5 Mb.
|The Streptococcus organisms are susceptible to
|The Staphylococcus organisms are not susceptible to the
|They cannot produce the toxins but they can cause
|The Staphylococcus are able to produce the toxins to cause
some infections in humans.
|The Streptococcus organism
is divided into 7 groups,
1) Group A: S.pyogenes
2) Group B: S.agalactiae
3) Group C: S.equi
4) Group D: S. faecalis
5) Group F: S. anginosus
6) Group G: S. canis
7) Group H: S. bovis
|The Staphylococcus organisms
are divided into 3 groups,
1) Group A: S.aureus
2) Group B: S. arlettae
3) Group C: S. delphini
|Streptococcus organisms cannot produce the catalase enzyme, so the negative results occur in the catalase
|Staphylococcus organisms produce the catalase enzyme; it gives positive results for the catalase test.
|The most pathogenic species are Streptococcus pneumonia, Streptococcus pyogenes, Streptococcus agalactiae.
|The most pathogenic species are
Staphylococcus aureus and Staphylococcus saprophyticus.
|To identify the streptococcus
species, the tests like the Catalase test, Bile solubility test, Bacitracin Sensitivity test, CAMP Test, Optochin
Sensitivity Test is used.
|To identify the Staphylococcus
species, the tests like the Catalase test, Novobiocin Sensitivity test, and coagulase test are used.
|The common diseases caused
by the streptococcus
organisms are strep throat, scarlet fever, toxic shock syndrome, blood infections, meningitis, pneumonia,
|The Common disease caused by the Staphylococcal organisms are Food poisoning, surgical site infection, wound infection, bacterial conjunctivitis, skin disease, community-acquired meningitis
|Treatment/ vaccine (prevention)
|Streptococcal infections can
be cured or prevented by penicillin.
|The staphylococcal infection
can be cured or prevented by the vancomycin.