Streptococcus vs Staphylococcus | 20 Key Differences
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
|1||Bacteria type||Streptococcus is a Gram-positive bacteria, forming a short-chain.||Staphylococcus is also a gram-positive bacteria, but it forms|
|2||Taxonomical Classification||Class: Bacilli|
|3||Cell Arrangement||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.
|4||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
|5||Multiplication||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.
|7||Pathogenesis||Most of the Streptococcal|
species are pathogenic.
|Some of the Staphylococci|
species are pathogenic.
|8||Growth Media||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.
|10||Fastidious||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.|
|12||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
|13||Hemolysis type||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.|
|14||Genome||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.|
|15||Bacteriophages||The Streptococcus organisms are susceptible to|
|The Staphylococcus organisms are not susceptible to the|
|16||Toxin||They cannot produce the toxins but they can cause|
|The Staphylococcus are able to produce the toxins to cause|
some infections in humans.
|17||Group classification||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
|18||Catalase production||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.
|20||Biochemical Test||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.
|21||Diseases caused||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|
|22||Treatment/ vaccine (prevention)||Streptococcal infections can|
be cured or prevented by penicillin.
|The staphylococcal infection|
can be cured or prevented by the vancomycin.