staphylococcus and streptococcus can be easily differentiated

1. How do you differentiate between staphylococcus and streptococcus?
2. What is difference between a staphylococcus and streptococcus in terms of biochemistry?
3. Are staph and strep gram-positive?
4. Which of the following bacteria is Gram-positive?
5. Where are staphylococcus and streptococcus bacteria found?
6. How do you identify Staphylococcus?
7. What can Staphylococcus cause?
8. Why are staphylococcal infections frequent in hospitals?
9. What characteristic do staphylococcus and streptococcus share?
10. What infections do staphylococcus and streptococcus cause?
11. Is Gram positive bacteria harmful?
12. What antibiotic is used to treat gram positive cocci?

How do you differentiate between staphylococcus and streptococcus?

Streptococci are Gram-positive cocci that grow in pairs or chains. They are readily distinguished from staphylococci by their Gram-stain appearance and by a negative catalase test. More than 30 species have been identified. The classification of streptococci is complex and is based on a combination of features.

What is difference between a staphylococcus and streptococcus in terms of biochemistry?

The main criterion for differentiation between Staphylococcus and Streptococcus genera is the catalase test. Staphylococci are catalase positive whereas Streptococci are Catalase negative. Catalase is an enzyme used by bacteria to induce the reaction of reduction of hydrogen peroxide into water and oxygen.

Are staph and strep gram-positive?

Gram-positive cocci include Staphylococcus (catalase-positive), which grows clusters, and Streptococcus (catalase-negative), which grows in chains. The staphylococci further subdivide into coagulase-positive (S. aureus) and coagulase-negative (S.

Which of the following bacteria is Gram-positive?

The Gram-positive bacteria include staphylococci ("staph"), streptococci ("strep"), pneumococci, and the bacterium responsible for diphtheria (Cornynebacterium diphtheriae) and anthrax (Bacillus anthracis).

Where are staphylococcus and streptococcus bacteria found?

Staphylococci are found on the skin. Streptococci are found in the respiratory tract. No hemolysis or beta hemolysis.

How do you identify Staphylococcus?

Diagnosis is based on performing tests with colonies. Tests for clumping factor, coagulase, hemolysins and thermostable deoxyribonuclease are routinely used to identify S aureus. Commercial latex agglutination tests are available. Identification of S epidermidis is confirmed by commercial biotyping kits.

What can Staphylococcus cause?

It is the leading cause of skin and soft tissue infections such as abscesses (boils), furuncles, and cellulitis. Although most staph infections are not serious, S. aureus can cause serious infections such as bloodstream infections, pneumonia, or bone and joint infections.

Why are staphylococcal infections frequent in hospitals?

Populations at risk for Staphylococcus aureus infection

In healthcare facilities, the risk of more serious staph infection is higher because many patients have weakened immune systems or have undergone procedures.

What characteristic do staphylococcus and streptococcus share?

Staphylococci and Streptococci are grouped as Gram-positive cocci. Staphylococci form clumps, whereas Streptococci grow in chains. They can be discriminated by catalase test because Staphylococci have the capability to produce catalase [2].

What infections do staphylococcus and streptococcus cause?

In adults, it can cause urinary tract infections, blood infections, skin infections and pneumonia. Antibiotics are used to treat strep infections.

Is Gram positive bacteria harmful?

Usually, gram-positive bacteria are the helpful, probiotic bacteria we hear about in the news, like LAB. They are the happy ones that live in our gut and help us digests food (Behnes, et al; 2013). Gram-negative bacteria, by coincidence, are usually thought of as the nasty bugs that can make us sick and can be harmful.

What antibiotic is used to treat gram positive cocci?

Most infections due to Gram-positive organisms can be treated with quite a small number of antibiotics. Penicillin, cloxacillin, and erythromycin should be enough to cover 90 per cent of Gram-positive infections.