What are the Skin and soft tissue infections caused by Strep. pyogenes?

It is based on the extraction of C carbohydrate from the streptococcal cell wall.

This protein antigen is acid labile, trypsin resistant. Not virulent.

Mostly significant in classifying and identifying B-haemolytic streptococci.

Lancefield D is under what hemolytic reaction?

Give out the diff. Protein antigens

Fammiliarize

Give out the Smith and Brown Classification

Reaction of Family Streptococcaceae

What is/are the specie/s under Lactic group?

Also called green streptococci

Most common cause of bacterial meningitidis in adults

Indigenous human microbiota, but can cause life-threatening infections if access to normally sterile sites is gained.

What is the adherence of Streptococcus pyogenes in causing Respiratory infection?

What hemolysis does Viridans group have in blood agar?

- Will neither grow at 10°C nor at 45 °C, but only at 37 C - Mostly has ẞ-haemolytic reactions -S.pyogenes, groups C and G streptocococci

-Will grow at 10°C to 37°C -Non-haemolytic and has a Lancefield N antigen -Often found in dairy products

What is/are the Serotype of Acute rheumatic fever?

This specie of B-hemolytic streptococci is bacitracin resistant

The new name for Streptococcus MG

What is the sequelae of Throat infection caused by Strep. pyogenes?

Describe Streptococcus pyogenes in Blood agar

These antigens are used for attachment in epithelial cells

What does MG in Streptococcus MG stands for?

-Have partial/complete hemolysis of red blood cells around the colonies -Culture, exhibit a greenish or incomplete hemolysis

How do Streptococcus looks like under the microscope?

Morphology: -Spherical to oval cocci -Arranged in chains, more in liquid medium -Non motile -Non sporing

This protein antigen is the most virulent; heat and acid stable, but susceptible to tryptic digestion.

This classification of Streptococci is based on haemolytic pattern.

This specie of B-hemolytic streptococci is bacitracin sensitive

It is used for thrombolytic theraphy in patients

-Will grow both at 45 °C and 37°C -Not part of the Lancefield group and maybe a-haemolytic or non-haemolytic -Indigenous microbiota in the upper respiratory tract of humans -Some may have the A, C,G, or N Lancefield antigen

Who is the person behind the Lancefield Classification?

-Will grow at 10 C, 45° C, and 37°C -Part of indigenous microbiota of the human intestines

This classification of Streptococci is based on temperature requirement.

Species under Lancefield group C

This protein antigen is not virulent

Specie under Lancefield group A

This group is formerly streptococci

Cultural Characteristic of Streptoccus pyogenes

A condition which is the consequence of a previous disease or injury.

The antigenic structure of Streptococcus pyogenes are composed of what?

Fill in the blanks

What is primary site of respiratory infections caused by Streptococcus pyogenes?

What are the infections/conditions under suppurative diseases?

It is a Skin and soft tissue infections caused by Strep. pyogenes which occurs in older patients.

Give out specie/s under Beta-haemolytic streptocci

It is an infection of the genital tract occurring at any time between rupture of membrane or labour and 42 days postpartum.

Specie under Lancefield group D

This specie of streptococci causes coagulation or souring of milk

Longest chain is produced by Streptococcus _____________ (Commensal)

What are the species under Pyogenic group?

Give out specie/s under Alpha-haemolytic streptocci

Some species are ___________ and thus require an increased consumption of CO2 for growth

• M types 1 and 3 forming pyrogenic exotoxin A •High fatality •Flesh eating bacteria •Shock, DIC •Treatment with penicillin - not effective •Vancomycin infections- DOC in life threatening infections

Lancefield A is under what hemolytic reaction?

All Streptococcus are facultative anaerobes except for what?

What toxin has relation with Necrotizing fascitis?

What are the toxins and enzymes of Streptococcus pyogenes?

What is the site of infection of Acute rheumatic fever?

What are the diseases/conditions with non suppurative sequelae?

All streptococci except the ______________ and _______________ are included in the Lancefield classification.

What is/are the specie/s under Enterococcus group?

Give out the Academuc/Bergey's Classification of Streptococci

How do Streptococcus looks like in Culture Media?

What is the sequelae of Impetigo caused by Step. pyogenes?

Specie under Lancefield group B

Caused by normal inhabitants of the femal genitalia and an example is Puerperal sepsis.

-Exhibit complete lysis of red blood cells around the colony -Culture, clear zone around the colony

It is the source of Streptokinase used for thrombolytic theraphy in patients

Lancefield B and C are under what hemolytic reaction?

Do not exhibit the lysis of red blood cells around the colony

This condition is caused by what?

Give out specie/s under Gamma-haemolytic streptocci

It is essential for the treatment of Acute rheumatic fever

What are the species under Viridans group

What is this condition?

It is a Skin and soft tissue infections caused by Strep. pyogenes which occurs in Children.

How many types are identified in M protein by Griffith typing?

Describe Streptococcus pyogenes in Liquid media