Streptococcus pneumoniae

Question 1

Streptoccocus pneumoniae

Answer 1

( oral colonization )

Question 2

Is Streptococcus pneumoniae gram positive or negative?

Answer 2

Gram postive

Question 3

shape?

Answer 3

diplococci

Question 4

For cultures:nstreptococcus pneumoniae does what?

Answer 4

does not grow in presence of optochin and bile

Question 5

Is streptococcus pneumoniae a-hemolytic or b-hemolytic?

Answer 5

a-hemolytic

Question 6

Is Streptococcus pneumoniae catalase postive or negative?

Answer 6

Catalase negative

Question 7

Is Streptococcus pneumoniae microaerophilic or faculative anaerobe?

Answer 7

Facultative anaerobe

Question 8

Streptococcus pneumoniae is quellung test (encapsulated bacteria) positive or negative?

Answer 8

postive

Question 9

What are streptococcus pneumoniae virulence factors?

Answer 9

• capsule ( 83 serotypes )

Question 10

Name the clinical manifestations for streptococcus pneumoniae

Answer 10

1) pneumonia
2) meningitis
3) sepsis
4) otitis(children)

Question 11

Name treatments for streptococcus pneumoniae

Answer 11

1) penicillin G (IM)
2) erythromycin
3) ceftriaxone
4) vaccine: against the 23 most common capsular Ag’s

Question 12

Signs and symptoms of Streptococcus peneumoniae

Answer 12

• fever and shaking chills
• severe chest pain
• blood from lungs makes sputum pinkish
• cyanosis (bluish skin color)

Question 13

Epidemiology of Streptococcus pneumoniae

Answer 13

• many healthy people carry it in their throat
• typically higher in school =aged children
• increased risk : people over 65, or in those with underlying heart or lung disease, diabetes, or cancer

Question 14

How is Streptococcus pneumoniae transmitted?

Answer 14

• Streptococcus pneumoniae is transmitted person to person by contact with saliva and mucus