Answer Posted / apoorva
Properties
1. They are gram-positive cocci arranged in grape-like clusters, singles, pairs or chains.
2. They are catalase positive and oxidase negative
3. They are non-motile and non-fastidious species
4. On Culture-
- Nutrient agar shows abundant pin-head golden-yellow colonies. This golden yellow pigment is k/a STAPHYLOXANTHIN which is carotenoid in nature.
- 5% sheep blood agar shows beta hemolysis
- On MacConkey agar, we can appreciate pink colonies which means that they are Lactose fermenting).
5. Free coagulase is the most important virulence factor
6. Diseases caused by them can be grouped as
Suppurative/Pyogenic
Bullous (SSSS)
cellulitis (inflammation of skin and subcutaneous tissue)
Folliculitis (infection of hair follicles)
Furuncle
Carbuncle
Impetigo
Breast abssess(especially-lactating mothers)
Acute osteomyelitis
Infective endocarditis
Nosocomial pneumonia
Surgical site infection
Necrotising pneumonia(by strains producing leucocidins)
Toxin Mediated
SSSS(Staphylococcal scalded skin disease)
TSS (Toxic shock syndrome)
Food poisning
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Why Lactobacilli are considered the most aciduric and acidogenic organisms in the oral cavity ?
What is quaternary ammonium salt give an example?
What is meant by cold sterilization?
Which is the more important step in gram stain?
Why did you decide to study microbiology? What do you like about it?
What is the Transposon for STM ?
How to Preserve bacteria in PBS for immunization ?
How much genetic exchange occurs between bacteria in natural conditions?
Explain about Irradiation of live virus vaccines ?
How to detect AHL signal?
Explain the screening of biosurfactant producing bacteria ?
How is the smear graded?
What is the compositiion of Heterotrophic medium?
What is the Immuno EM for P. falciparum ?
Explain about Brucella LPS extraction ?